Referred Conference Publications – By Year

2026

  • J. Cañada, Z. Bigelow and L. F. Velásquez-Garcia*, “Towards the Accessible, Monolithic Fabrication of Complex Multi-Material Systems”, Technical Digest RoboSoft 2026, Kanazawa, April 7-11, 2026.

2025

  • Z. Bigelow and L. F. Velásquez-Garcia*, “In-Situ, In-Plane Magnetization of Additively Manufactured Hard Magnets,” Technical Digest 24th International Conference on Micro and Miniature Power Systems, Self-Powered Sensors and Energy Autonomous Devices (PowerMEMS+ 2025), Albuquerque, NM, USA, December 15 – 18, 2025.
  • B. Quintanar and L. F. Velásquez-García*, “Fully 3D-Printed, Triaxial Electrospray Microfluidics for Uniform Core-Shell-Shell Microparticle Generation,” Technical Digest 23rd International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers 2025), Orlando, FL, USA, pp. 1295-1298, June 29 – July 3, 2025 doi: 10.1109/Transducers61432.2025.11111129

2024

  • J. Cañada, S. F. Nagle, N. Vidal, J. M. López-Villegas, and L. F. Velásquez-García*, “3D-Printed Soft Magnetic Cores for Compact Electromechanical Devices Via Material Extrusion,” Technical Digest 23rd International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, Tonsberg, Norway, pp. 255 – 258, November 18-21, 2024 doi: 10.1109/PowerMEMS63147.2024.10814238
  • C. Eckhoff, H. Kim, L. Metzler, R. E. Pedder, and L. F. Velásquez-García*, “3D Printed, Quadrupole Mass Filter with High Filter Resolution for Detecting Carbon-13 Isotopes,” Technical Digest 37th International Vacuum Nanoelectronics Conference (IVNC 2024), July 15 – 19 2024, Brno, Czech Republic, doi: 10.1109/IVNC63480.2024.10652515
  • C. Eckhoff, H. Kim, L. Metzler, R. E. Pedder, and L. F. Velásquez-García*, “3D Printing Produces Excellent Quadrupole Mass Filters,” Technical digest of the American Society of Mass Spectrometry Conference on Mass Spectrometry and Allied Topics (ASMS 2024), Anaheim, CA, USA, June 2 – 6, 2024.

2023

  • H. Kim and L. F. Velásquez-García*, “Monolithically 3D-Printed Microfluidic Flow Distributor for Uniform Operation of Multiplexed Electrospray Droplet CubeSat Thrusters,” Technical Digest 22nd International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, Abu Dhabi, UAE, pp. 224 – 227, December 11-14, 2023, doi: 10.1109/PowerMEMS59329.2023.10417348
  • J. Cañada and L. F. Velásquez-García*, “Monolithically 3D-Printed, Self-Heating Microfluidics,” Technical Digest 22nd International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, Abu Dhabi, UAE, pp. 210 – 213, December 11-14, 2023, doi: 10.1109/PowerMEMS59329.2023.10417177
  • A. Kachkine, C. E. Owens, A. J. Hart, and Luis F. Velásquez-García*, “3D-Printed, Non-Planar Electron Sources for Next-Generation Electron Projection Lithography,” Technical Digest 36th International Vacuum Nanoelectronics Conference (IVNC 2023), July 10 – 13 2023, Cambridge, MA, USA, pp. 128–130, doi: 10.1109/IVNC57695.2023.10188962.
  • Z. Bigelow and Luis F. Velásquez-García*, “Fully 3D-Printed, Miniature Langmuir Multi-Probe Sensor for Cubesat Ionospheric Plasma Diagnostics,” Technical Digest 36th International Vacuum Nanoelectronics Conference (IVNC 2023), July 10 – 13 2023, Cambridge, MA, USA, pp. 103–105, doi: 10.1109/IVNC57695.2023.10188955.
  • C. C. Eckhoff, N. K. Lubinsky, R. E. Pedder, and Luis F. Velasquez-Garcia*, “Miniature, Monolithic, Fully Additively Manufactured Glass-Ceramic Quadrupole Mass Filters for Point-Of-Care Mass Spectrometry,” Technical Digest 36th International Vacuum Nanoelectronics Conference (IVNC 2023), July 10 – 13 2023, Cambridge, MA, USA, pp. 204-206, doi: 10.1109/IVNC57695.2023.10188968.
  • A. Diaz and L. F. Velásquez-García*, “Miniature, 3-D Printed RF Quadrupole Mass Filters for CubeSats,” Technical Digest 36th International Vacuum Nanoelectronics Conference (IVNC 2023), July 10 – 13 2023, Cambridge, MA, USA, pp. 106-108, doi: 10.1109/IVNC57695.2023.10188995.
  • N. K. Lubinsky and Luis F. Velasquez-Garcia*, “3-D Printed, Compact, Time-of-Flight Reflectron Mass Filters,” Technical Digest 36th International Vacuum Nanoelectronics Conference (IVNC 2023), July 10 – 13 2023, Cambridge, MA, USA, pp. 109-111, doi: 10.1109/IVNC57695.2023.10189013.
  • A. Kachkine, L. F. Velásquez‐García*, “Individually Addressable, 3D-Printed Carbon Nanotube Field Emitter Arrays for Large-Area Vacuum Electronics,” Technical Digest of the 22nd International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers 2023), June 25 – 29, 2023, pp. 1380 – 1383. https://ieeexplore.ieee.org/document/10517137
  • J. Cañada and L. F. Velásquez-García*, “Fully 3D-Printed, Semiconductor-Free, Transistor-Like Logic Devices,” Technical Digest of the 22nd International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers 2023), June 25 – 29, 2023, pp. 550 – 553. https://ieeexplore.ieee.org/abstract/document/10517106
  • H. Kim and L. F. Velásquez-García*, “3D-Printed, Internally Fed MEMS Electrospray Thruster with Precise Flow Rate Control for High-Impulse CubeSat Missions,” Technical Digest of the 22nd International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers 2023), June 25 – 29, 2023, pp. 1315 – 1318. https://ieeexplore.ieee.org/document/10516866
  • C. Eckhoff, N. Lubinsky, and L. F. Velásquez-García*, “Miniature, Monolithic, Fully Additively Manufactured Glass-Ceramic Quadrupole Mass Filters for Portable Mass Spectrometry,” Technical digest of the American Society of Mass Spectrometry Conference on Mass Spectrometry and Allied Topics (ASMS 2023), Houston, TX, USA, June 4 – 8, 2023.
  • J. Cañada Perez-Sala and L. F. Velásquez-García*, “Monolithically 3D-Printed, Miniature Solenoids with Soft Magnetic Core for Compact Systems,” Technical Digest 13th International Conference on Power, Energy and Electrical Engineering (CPEEE 2023), Tokyo, Japan, pp. 116, 120, February 25-27, 2023, doi: 10.1109/CPEEE56777.2023.10217558  Paper won Best Paper Award at the conference.

2022

  • H. Kim and L. F. Velásquez-García*, “3D-Printed, Internally Fed, MEMS Electrospray Thrusters,” Technical Digest 21st International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, Salt Lake City, UT, USA, pp. 46 – 49, December 12-15, 2022. doi: 10.1109/PowerMEMS56853.2022.10007598
  • J. Cañada and L. F. Velásquez-García*, “Fully 3D-Printed Solenoids for Compact Systems,” Technical Digest 21st International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, Salt Lake City, UT, USA, pp. 150 – 153, December 12-15, 2022. doi: 10.1109/PowerMEMS56853.2022.10007551
  • A. Kachkine and L. F. Velásquez-García*, “Densely Packed, Additively Manufactured, In-Plane Gated Carbon Nanotube Field Emission Electron Sources,” Technical Digest 21st International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, Salt Lake City, UT, USA, pp. 38 – 41, December 12-15, 2022. Paper won Best Paper Award at the conference. doi: 10.1109/PowerMEMS56853.2022.10007579
  • H.-J. Lee and L. F. Velásquez-García*, “3D-Printed Peristaltic Vacuum Pumps for Compact Vacuum Applications,” Technical Digest 21st International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, Salt Lake City, UT, USA, pp. 162 – 165, December 12-15, 2022. doi: 10.1109/PowerMEMS56853.2022.10007548
  • C. Eckhoff, N. Lubinsky, and L. F. Velásquez-García*, “Additively Manufactured, Compact Quadrupole Mass Analyzer”, Technical Digest 35th International Vacuum Nanoelectronics Conference (IVNC 2022), South Korea, O-4, July 5–8, 2022.
  • H.-J. Lee and L. F. Velásquez-García*, “Compact Peristaltic Vacuum Pumps via Additive Manufacturing”, Technical Digest 35th International Vacuum Nanoelectronics Conference (IVNC 2022), South Korea, O-9, July 5–8, 2022.
  • A. Kachkine and L. F. Velásquez-García*, “Nanowire-Coated Emitter Electrospray Ionizer Coupled to Digital Microfluidics for Liquid Analysis,” Technical Digest 35th Conference on Micro Electro Mechanical Systems (MEMS 2022), Tokyo, Japan, pp. 95–98, January 9—13, 2022. doi: 10.1109/MEMS51670.2022.9699691

2020

  • A. Fursova, S. Konev, L. F. Velásquez-García, Z. Sun, E. Nikolaev, “Study on the Thermal Expansion Effects of the 3D Printed Space Instrument”, Technical Digest 15th International Manufacturing Science and Technology Conference, September 3, 2020; MSEC2020-8293. doi: 10.1115/MSEC2020-8293
  • Y. Kornbluth, L. F. Velásquez-García*, I. Ehrenberg, D. Carter, and K. J. Russell, “Atmospheric Microplasma-Sputtered Micro and Nanowires for Advanced THz Interconnects,” Technical Digest 33rd International Vacuum Nanoelectronics Conference (IVNC 2020), July 6–10, 2020. https://doi.org/10.1109/IVNC49440.2020.9203069
  • D. V. Melo Maximo and L. F. Velásquez-García*, “Fully Additively Manufactured, Nanostructured, Miniature Ionic Liquid Electrospray Sources,” Technical Digest 33rd Conference on Micro Electro Mechanical Systems (MEMS 2020), Vancouver, Canada, pp. 598–601, January 18–22, 2020. https://doi.org/10.1109/MEMS46641.2020.9056405

2019

  • A. P. Taylor and L. F. Velásquez-García*, “Low-Cost, Fully 3D-Printed, Magnetically Actuated, Miniature Valve-less Liquid Pump,” Technical Digest 19th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2019), Krakow, Poland, December 2–6, 2019. https://doi.org/10.1109/PowerMEMS49317.2019.20515804968
  • E. Segura-Cardenas and L. F. Velásquez-García*, “Low-Cost, Rugged Microfluidics via Silver Clay Extrusion,” Technical Digest 19th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2019), Krakow, Poland, December 2–6, 2019. https://doi.org/10.1109/PowerMEMS49317.2019.30773701484
  • Z. Sun and L. F. Velásquez-García*, “Additively Manufactured, Miniature Multi-Emitter Ionic Wind Pumps,” Technical Digest 19th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2019), Krakow, Poland, December 2–6, 2019. https://doi.org/10.1109/PowerMEMS49317.2019.6397053
  • I. A. Perales Martínez and L. F. Velásquez-García*, “Additively Manufactured CNT Field Emission Electron Sources with Integrated In-Plane Gate,” Technical Digest 32nd International Vacuum Nanoelectronics Conference / 12th International Vacuum Electron Sources Conference (IVNC/IVESC), Cincinnati OH, USA, July 22–26, 2019.
  • B. García-Farrera and L. F. Velásquez-García*, “Near-Room Temperature Direct Writing of Ultrathin Zinc Oxide Piezoelectric Films via Near-Field Electrohydrodynamic Jetting for High-Frequency Flexible Electronics,” Technical Digest 20th International Conference on Solid-State Sensors, Actuators, and Microsystems (Transducers 2019 – Eurosensors XXXIII), Berlin, Germany, pp. 1651–1654, June 23–27, 2019. Paper won Outstanding Paper Award – Poster Presentation Category at the conference. https://doi.org/10.1109/TRANSDUCERS.2019.8808776
  • Y. Kornbluth, R. Mathews, L. Parameswaran, L. M. Racz, and L. F. Velásquez-García*, “Room-Temperature Printing of Micron-Scale-Wide Metal Lines for Microsystems via Atmospheric Microsputtering,” Technical Digest 32nd Conference on Micro Electro Mechanical Systems (MEMS 2019), Seoul, South Korea, pp. 372–375, January 27–31, 2019. https://doi.org/10.1109/MEMSYS.2019.8870670
  • A. P. Taylor and L. F. Velásquez-García*, “Low-Cost, Monolithically 3D-Printed, Miniature High-Flow Rate Liquid Pump,” 18th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2018), Daytona Beach FL, USA, December 4–7, 2018. Journal of Physics Conference Series, Vol. 1047 (2019) 012040 (5pp). https://doi.org/10.1088/1742-6596/1407/1/012040
  • C. Yang and L. F. Velásquez-García*, “Compact, 3D-Printed Electron Impact Ion Source with Microfabricated, Nanosharp Si Field Emitter Array Cathode,” 18th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2018), Daytona Beach FL, USA, December 4–7, 2018. Journal of Physics Conference Series, Vol. 1047 (2019) 012019 (5pp) https://doi.org/10.1088/1742-6596/1407/1/012019

2018

  • Z. Sun and L. F. Velásquez-García*, “Miniature, 3D-Printed, Monolithic Arrays of Corona Ionizers,” Technical Digest of the 18th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2018), Daytona Beach FL, USA, December 4–7, 2018. Journal of Physics Conference Series, Vol. 1047 (2019) 012065 (5pp) https://doi.org/10.1088/1742-6596/1407/1/012065
  • A. Beckwith, L. F. Velásquez-García, and J. Borenstein “An Additive Manufacturing-Based Microfluidic System for Evaluation of Cancer Immunotherapies”, Session BM05.03 – Microfluidics and Chip Technologies for Tissue Modeling, Technical Digest MRS Fall 2018, Boston, MA, November 25–30, 2018.
  • E. Nikolaev, G. Vladimirov, O. Kharybin, L. F. Velásquez-García, A. Fursova, Z. Sun, M. Sudakov, and A. Lioznov, “Ion Traps with Quadratic Potentials in Fourier Transform Based Mass Spectrometry. Harmonized Multi-Electrode Kingdon Traps and FT ICR Cell,” Technical Digest 22nd International Mass Spectrometry Conference, Florence, Italy, August 26–31, 2018.
  • L. F. Velásquez-García*, Y. Kornbluth, and E. Heubel, “Plasma Microsystems for Sensing and Additive Manufacturing,” Technical Digest iPlasmaNano- IX, New Buffalo, MI, August 26–29, 2018.
  • E. Nikolaev, G. Vladimirov, M. Sudakov, O. Kharybin, Y. Kostyukevich, A. Fursova, Z. Sun, and L. F. Velásquez-García, “Progress in Development of Fourier Transform Mass Spectrometer on the Bases of Multiple Electrode Harmonized Kingdon Trap,” Technical Digest of the 66th ASMS Conference on Mass Spectrometry and Allied Topics, San Diego CA, June 3–7, 2018.
  • N. Christian, J. S. Ha, D. Hunka, T. K. McPhail, S. Pradel, C. Wahl, G. Kibelka, L. F. Velásquez-García, and C. Livermore, “A Simple 180-degree Permanent Magnet Mass Analyzer with Arrayed Detection,” Technical Digest of the 66th ASMS Conference on Mass Spectrometry and Allied Topics, San Diego CA, June 3–7, 2018.
  • A. P. Taylor and L. F. Velásquez-García*, “High-Temperature Compatible, Monolithic, 3D-Printed Magnetic Actuators,” 17th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2017), Kanazawa, Japan, November 14–17, 2017. Journal of Physics Conference Series, Vol. 1052 (2018) 012046 (4pp). https://doi.org/10.1088/1742-6596/1052/1/012046

2017

  • N. Christian, D. Hunka, J. Ha, T. McPhail, M. Melendez, J‐S. Pradel, D. Nichols, G. Kibelka, C. Livermore, L. F. Velásquez-García, and C. Yang, “Development of a Low-Cost, Low-Power, Sector Mass Spectrometer for All-Threat Sensing,” 2017 Chemical and Biological Defense Science & Technology Conference, Long Beach, CA, November 28 – 30, 2017.
  • Y. Kornbluth, R. Mathews, L. Parameswaran, L. M. Racz, and L. F. Velásquez-García*, “Microplasma Sputtering for 3D Printing of Metallic Microstructures,” 64th American Vacuum Society International Symposium and Exhibition, Tampa, FL, October 29–November 3, 2017.
  • N. Christian, D. Hunka, J. Ha, T. McPhail, M. Melendez, J‐S. Pradel, D. Nichols, G. Kibelka, C. Livermore, L. F. Velásquez-García, and C. Yang, “Development of a Low‐Cost, Low‐Power, Miniature Sector Mass Spectrometer with Ion CCD Detection,” 11th Harsh-Environment Mass Spectrometry Workshop, September 18–21, 2017, Oxnard, CA.
  • P. D. Keathley, W. P. Putnam, G. Laurent, L. F. Velásquez-García, and F. X. Kärtner, “Role of the Ground State in Strong-Field Photoemission Yield from Si Nanotips,” Technical Digest of 6th International Conference on Attosecond Physics (Atto 2017), Xi’an, China, July 2–7, 2017.
  • E. Nikolaev, G. Vladimirov, Y. Kostyukevich, O. Kharybi, Z. Sun, and L. F. Velásquez-García, “Initial Characterization of 3D-printed High-Resolution Low Weight and Low Power Consuming Fourier Transform Mass Spectrometer Based on Cassinian Ion Trap,” Technical Digest of 65th ASMS Conference on Mass Spectrometry and Allied Topics, Indianapolis, IN, June 4–8, 2017.
  • P. D. Keathley, P. Krogen, W. Putnam, M. Swanwick, J. Moses, L. F. Velásquez-García, and F. X. Kaertner, “Generation of Cooler, Ultrafast Electron Packets Via Mid-IR Driven Nanostructures,” Technical Digest of the Conference on Lasers and Electro-Optics (CLEO), San Jose, CA, JTh2A, May 14–19, 2017. https://doi.org/10.1364/CLEO_AT.2017.JTh2A.29
  • Z. Sun and L. F. Velásquez-García*, “Evaluation of Lost-Wax Micromolding and Inkjet Printing for Additive Manufacturing of Miniaturized Metal Vacuum Devices,” Technical Digest Skoltech and MIT Conference “Shaping the Future: Big Data, Biomedicine, and Frontier Technologies”, Moscow, April 25-26, 2017.
  • A. P. Taylor and L. F. Velásquez-García*, “3-D Printed Miniaturized Diaphragm Vacuum Pump,” Technical Digest 30th IEEE Conference on Micro Electro Mechanical Systems (MEMS 2017), Las Vegas, NV, pp. 1292–1295, January 22–26, 2017. https://doi.org/10.1109/MEMSYS.2017.7863655

2016

  • D. Olvera Trejo and L. F. Velásquez-García, “SLA 3-D Printed MEMS Coaxial Electrospray Sources For Uniform Generation of Core-Shell Microparticles”, Technical Digest 17th Solid-State Sensor, Actuator and Microsystems Workshop, Hilton Head Island SC, USA, pp. 176 – 179, June 5 – 9, 2016.

2015

  • A. Taylor and L. F. Velásquez-García, “Microwatt-Powered, Low-Cost, Printed Graphene Oxide Humidity Sensor For Distributed Sensor Networks”, 15th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2015), Boston, Massachusetts, USA, December 1 – 4, 2015; Journal of Physics Conference Series, Vol. 660 (2015) 012134 (5pp).
  • A. Hill and L. F. Velásquez-García, “Advances In Vertical Solid-State Current Limiters For Regulation Of High-Current Field Emitter Arrays”, 15th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2015), Boston, Massachusetts, USA, December 1 – 4, 2015; Journal of Physics Conference Series, Vol. 660 (2015) 012037 (5pp).
  • Basu, M. A. Perez, and L. F. Velásquez-García, “Miniaturized, Electrostatic, High-Vacuum Ion Pump Using A Nanostructured Field Emission Electron Source”, 15th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2015), Boston, Massachusetts, USA, December 1 – 4, 2015; Journal of Physics Conference Series, Vol. 660 (2015) 012027 (5pp).
  • Basu, M. A. Perez, and L. F. Velásquez-García, “Nanostructured Silicon Field Emitter Array-Based High-Vacuum Magnetic-Less Ion Pump for Miniaturized Atomic Spectroscopy Sensors”, Technical Digest of the 18th International Conference on Solid-State Sensors, Actuators, and Microsystems (Transducers 2015), Anchorage AK, USA, pp. 1021 – 1024, June 21 – 25, 2015.
  • J. Ponce de Leon, F. A. Hill, E. V. Heubel, and L. F. Velásquez-García, “High-Throughput Manufacturing of Polymer Nanofibers via Electrohydrodynamic Jetting from Planar Arrays of Microfabricated Externally-Fed Emitters”, Technical Digest of the 18th International Conference on Solid-State Sensors, Actuators, and Microsystems (Transducers 2015), Anchorage AK, USA, pp. 1794 – 1797, June 21 – 25, 2015.

2014

  • Dong, M. E. Swanwick, P. D. Keathley, F. X. Kärtner, and L. F. Velásquez-García*, “Advances on Ultrafast Silicon Field Emitter Array Photocathodes for Coherent Radiation Sources Based on Inverse Compton Scattering”, 14th International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2014), Awaji Island, Hyogo, Japan, November 18 – 21, 2014; Journal of Physics Conference Series, Vol. 557 (2014) 012055 (5pp).
  • H. Ye, J. S. Kienitz, S. Fang, S. Trippel, M. E. Swanwick, P. D. Keathley, L. F. Velásquez-García, G. Cirmi, G. M. Rossi, A. Fallahi, O. D. Mücke, J. Küpper, and F. X. Kärtner “Velocity Map Imaging of Electrons Strong-Field Photoemitted from Si-Nanotip Arrays”, Technical Digest 19th International Conference on Ultrafast Phenomena, Okinawa Convention Center, 09.Wed.P3.37, July 7 – 11 2014.
  • M. E. Swanwick, C. D. Dong, P. D. Keathley, A. Fallahi, F. X. Kärtner, and L. F. Velásquez-García, “Pitch Scaling of Ultrafast, Optically-Triggered Silicon Field Emitter Arrays”, Technical Digest of the 27th International Vacuum Nanoelectronics Conference (IVNC 2014), Engelberg, Switzerland, July 6 – 10, 2014.
  • A. A. Fomani, L. F. Velásquez-García, and A. I. Akinwande, “Challenges of High Vacuum Pumping based on Impact Ionization and Implantation Processes”, Technical Digest of the 27th International Vacuum Nanoelectronics Conference (IVNC 2014), Engelberg, Switzerland, July 6 – 10, 2014.
  • A. A. Fomani, M. E. Swanwick, L. F. Velásquez-García, and A. I. Akinwande “Current Limitation in Large-Area Self-Aligned Gated Field Emission Arrays”, Technical Digest of the 27th International Vacuum Nanoelectronics Conference (IVNC 2014), Engelberg, Switzerland, July 6 – 10, 2014.
  • A. Fallahi, R. Hobbs, Y. Yang, P. D. Keathley, M. E. Swanwick, L. F. Velásquez-García, K. K. Berggren, and F. X. Kärtner, “Complete Simulation of Laser Induced Field Emission from Nanostructures Using a DGTD, PIC and FEM Code”, Technical Digest 5th International Particle Accelerator Conference, MOPRI026, pp. 645 – 648, June 15 – 20, 2014.
  • P. D. Keathley, M. E. Swanwick, A. Fallahi, L. F. Velásquez-García, and F. X. Kärtner, “Space Charge Effects in Strong-Field Emission From a Nanostructured Si Cathode”, Technical Digest of the Conference on Lasers and Electro-Optics – CLEO, San Jose, CA, JW2A.112, June 8-13, 2014.
  • X. Xie, Y. Zaitsev, L. F. Velásquez-García, S. Teller, and C. Livermore, “Compact, Scalable, High-Resolution, MEMS-Enabled Tactile Displays”, technical digest 16th Solid-State Sensor, Actuator and Microsystems Workshop, Hilton Head Island SC, USA, pp. 127-130, June 8 – 12, 2014.

2013

  • S. Cheng, F. A. Hill, E. V. Heubel, and L. F. Velásquez-García “A Compact X-ray Generator Using a Nanostructured Field Emission Cathode and a Microstructured Transmission Anode”, 13th International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS), London, UK, December 3-6, 2013, Journal of Physics: Conference Series Volume 476 (2013) 012016 doi:10.1088/1742-6596/476/1/012016 Paper won the Best Proceedings Paper Award.
  • A. A. Fomani, A. I. Akinwande, and L. F. Velásquez- García,  “Resilient, Nanostructured, High-Current, and Low-Voltage Neutralizers for Electric Propulsion of Small Spacecraft in Low Earth Orbit”, 13th International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS), London, UK, December 3-6, 2013, IOP Journal of Physics: Conference Series Volume 476 (2013) 012014 doi:10.1088/1742-6596/476/1/012014.
  • W. S. Graves, K.K. Berggren, S. Carbajo, R. Hobbs, K.-H. Hong, W.R. Huang, F.X. Kärtner, P.D. Keathley, D.E. Moncton, E. Nanni, K. Ravi, M. Swanwick, L.F. Velásquez-García, L.J. Wong, Y. Yang, L. Zapata, Y. Zhou, J. Bessuille, P. Brown, E. Ihloff, J. Derksen, A. Fallahi, F.X. Kärtner, F.Scheiba, X.Wu,D. Mihalcea, Ph. Piot, and I. Viti, “Compact XFEL Light Source”, Proceedings of the 35th International Free-Electron Laser Conference, New York, NY, USA, pp. 757 – 761, August 26 – 30, 2013.
  • M. Swanwick, P. D. Keathley, F. X. Kärtner, and L. F. Velásquez-García, “Nanostructured Silicon Photo-cathodes for X-ray Generation”, Technical Digest of the 26th International Vacuum Nanoelectronics Conference (IVNC 2013), Roanoke VA, July 8 – 12, 2013.
  • R. Hobbs, Y. Yang, P.D. Keathley, W.S. Graves, F.X. Kaertner, M.E. Swanwick, L.F. Velásquez-García, and K. Berggren, “Optically Actuated Nanostructured Electron-emitter Arrays”, Technical Digest of the 26th International Vacuum Nanoelectronics Conference (IVNC 2013), Roanoke VA, July 8 – 12 2013.
  • A. Fomani, L. F. Velásquez-García, and A. I. Akinwande, “A Low-voltage High-pressure Field Ionizer for Portable Analytical Instruments”, Technical Digest of the 26th International Vacuum Nanoelectronics Conference (IVNC 2013), Roanoke VA, July 8 – 12 2013.
  • F. A. Hill, P. Ponce de Leon, and L. F. Velásquez-García, “High-Throughput Ionic Liquid Electrospray Sources Based on Dense Monolithic Arrays of Emitters with Integrated Extractor Grid and Carbon Nanotube Flow Control Structures”, Technical Digest of the 17th International Conference on Solid-State Sensors, Actuators, and Microsystems (Transducers 2013 & Eurosensors XXVII), Barcelona, Spain, pp. 2644 – 2647, June 16 – 20 2013.
  • M. Swanwick, P. D. Keathley, F. X. Kärtner, and L. F. Velásquez-García, “Ultrafast Photo-Triggered Field Emission Cathodes Using Massive, Uniform Arrays Of Nano-Sharp High-Aspect-Ratio Silicon Structures”, Technical Digest of the 17th International Conference on Solid-State Sensors, Actuators, and Microsystems (Transducers 2013 & Eurosensors XXVII), Barcelona, Spain, pp. 2680 – 2683, June 16 – 20 2013.
  • R. G. Hobbs, Y. Yang, P. D. Keathley, William S. Graves, F. X. Kärtner, K. K. Berggren, M. Swanwick, and L. F. Velásquez-García “Optically Actuated Nanostructured Electron-Emitter Arrays” Technical Digest 57th International Conference on Electron, Ion, and Photon Beam Technology and Nanofabrication, Nashville TN, May 28 – 31 2013.
  • P. D. Keathley, M. Swanwick, A. Sell, W. P. Putnam, S. Guerrera, L. F. Velásquez-García, and F. X. Kaertner, “Strong-Field Emission From High Aspect Ratio Si Emitter Arrays”, Technical Digest of the American Physicist Society, Baltimore MD, http://meetings.aps.org/link/BAPS.2013.MAR.G41.4, March 18 – 22, 2013.
  • E. V. Heubel and L. F. Velásquez-García,  “Batch-Fabricated MEMS Retarding Potential Analyzer for High-Accuracy Ion Energy Measurements”, Technical Digest of the 26th IEEE International Conference on Micro Electro Mechanical Systems, Taipei, Taiwan, pp. 661 – 664, January 20 – 24, 2013.

2012

2011

  • S. A. Guerrera, L. F. Velásquez-García, and A. I. Akinwande, “Scaling of High Aspect Ratio Current Limiters for the Individual Ballasting of Large Arrays of Field Emitters”, Technical Digest 24th International Vacuum Nanoelectronics Conference, Wuppertal, Germany, July 2011.

2010

  • K. Cheung, L. F. Velásquez-García, and A. I. Akinwande, “High-Performance Square Electrode Quadrupole Mass Filters,”Technical Digest 23rd IEEE International Conference on Micro Electro Mechanical Systems MEMS 2010, Hong Kong, SAR, China, pp. 867 – 870, Jan. 24 – 28 2010.

2009

  • L. F. Velásquez-García, B. Gassend, and A. I. Akinwande, “CNT-Based Gas Ionizers with Integrated MEMS Gate for Portable Mass Spectrometry Applications,” Technical Digest of 15th International Conference on Solid-State Sensors, Actuators and Microsystems, Denver CO, USA, pp. 1646-1649, June 21 – 25, 2009.
  • L. F. Velásquez-García, Y. Niu, S. Guerrera, and A. I. Akinwande, “Advanced Cathodes for Novel Sub-mm Wave Compact Sources,” 34th Government Microcircuit Applications and Critical Technology Conference, Orlando FL, USA, March 16-19, 2009.
  • F. Eid, L. F. Velásquez-García, and C. Livermore, “Design, Fabrication, and Demonstration of a MEMS Steam Generator for Ejector Pump Applications,” Technical Digest 9th International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS), Washington DC, USA, pp. 41 – 44, December 1-4, 2009. Paper won the Best Student Oral Presentation Award.

2008

  • B. Gassend, L. F. Velásquez-García, A. I. Akinwande, and M. Martínez-Sánchez, “Fabrication of a Fully-Integrated Electrospray Array With Applications to Space Propulsion,” Technical Digest 21st IEEE International Conference on Micro Electro Mechanical Systems, Tucson AZ, USA, pp. 976 – 979, Jan. 2008.
  • T. J. Hogan, S. Taylor, K. Cheung, L. F. Velásquez-García, A. I. Akinwande, “Simulation of a square electrode MEMS quadrupole mass filter operating in stability zones 1 and 3,” 56th ASMS Conference on Mass Spectrometry and Allied Topics, Denver CO, USA, June 1-5, 2008.
  • L. F. Velásquez-García and A. I. Akinwande “A PECVD CNT-Based Open Architecture Field Ionizer for Portable Mass Spectrometry,” Technical Digest 21st IEEE International Conference on Micro Electro Mechanical Systems, Tucson AZ, USA, pp. 742 – 745, Jan. 2008.
  • K. Cheung, L. F. Velásquez-García, A. I. Akinwande, “Fully Batch-Fabricated Linear Quadrupole Mass Filters,” Technical Digest IEEE Solid-State Sensors, Actuators, and Microsystems Workshop, Hilton Head Island SC, USA, pp. 316-319, 2008.

2007

  • L. F. Velásquez-García, K. Cheung, and A. I. Akinwande, “Improvements on an Out-of-Plane MEMS Quadrupole for Portable Mass Spectrometry,” Technical Digest of the 20th International Vacuum Nanoelectronics Conference, Chicago IL, USA, July 8 – 12, 2007.
  • K. Cheung, L. F. Velásquez-García, and A. I. Akinwande, “First Principles Optimization of Mass Producible Microscaled Linear Quadrupoles for Operation in Higher Stability Regions,” Technical Digest of the 20th International Vacuum Nanoelectronics Conference, Chicago IL, USA, July 8 – 12, 2007.
  • L. F. Velásquez-García and A. I. Akinwande, “An Out-of-Plane MEMS Quadrupole for a Portable Mass Spectrometer,” Technical Digest of the 14th International Conference on Solid-State Sensors, Actuators and Microsystems, Vol. 2, pp 2315 – 2320, Lyon, France, June 10th – 14th, 2007.
  • B. Gassend, L. F. Velásquez-García, A. I. Akinwande and M. Martínez-Sánchez, “A Fully Integrated Microfabricated Externally Wetted Electrospray Thruster,” IEPC-2007-233, 30th International Electric Propulsion Conference, Florence, Italy, September 17-20, 2007.
  • B. Gassend, L. F. Velásquez-García, A. I. Akinwande, and M. Martínez–Sánchez, “A Fully Integrated Microfabricated Externally Wetted Electrospray Thruster,” AIAA-2007-5182, 43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference,Cincinnati OH, USA, July 8-11, 2007.
  • L. F. Velásquez-García, B. Adeoti, Y. Niu and A. I. Akinwande, “Uniform High Current Field Emission of Electrons from Si and CNF FEAs Individually Controlled by Si Pillar Ungated FETs,” Technical Digest IEEE International Electron Device Meeting,Washington DC, USA, pp. 599 – 602, Dec. 2007.
  • L-Y. Chen, L. F. Velasquez-Garcia, X. Wang, K. Teo and A. I. Akinwande, “A Micro Ionizer for Portable Mass Spectrometers using Double-gated Isolated Vertically Aligned Carbon Nanofiber Arrays,” Technical Digest IEEE International Electron Device Meeting, Washington DC, USA, pp. 843 – 846, Dec. 2007.
  • L. F. Velásquez-García and A. I. Akinwande “A MEMS CNT-Based Neutralizer for Micro-propulsion Applications,” IEPC-2007-253, 30th International Electric Propulsion Conference, Florence, Italy, September 17-20, 2007.
  • L. F. Velásquez-García and A. I. Akinwande, “The Development of a Micro-Fabricated CNT-Based Neutralizer for Micro-Propulsion Applications” AIAA-2007-5255, 43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit,Cincinnati OH, USA July 8-11, 2007.
  • L.-Y. Chen, L. F. Velásquez-García, X. Wang, K. Cheung, K. Teo, and A. I. Akinwande, “Design, Fabrication and Characterization of Double-Gated Vertically Aligned Carbon Nanofiber Field Emitter Arrays,” Technical Digest of the 20th International Vacuum Nanoelectronics Conference, Chicago IL, USA, July 8 – 12, 2007.

2006

  • L. F. Velásquez-García, T. F. Hill, B. A. Wilhite, K. F. Jensen, A. H. Epstein, and C. Livermore, “A MEMS Singlet Oxygen Generator for a MEMS Chemical Oxygen Iodine Laser,” Technical Digest of the 6th International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, pp. 117 – 120, Berkeley CA, USA, November 29th – December 1st 2006.
  • T. F. Hill, L. F. Velásquez-García, B. A. Wilhite, A. H. Epstein, K. F. Jensen, and C. Livermore, “A MEMS Singlet Oxygen Generator,” Technical Digest of the Solid-State Sensor, Actuator and Microsystems Workshop, pp 114 – 119, Hilton Head Island SC, USA, June 4 – 8, 2006.

2005

  • L. F. Velásquez-García, A. I. Akinwande, M. Martínez–Sánchez, “Development an Characterization of a Micro-fabricated Linear Array of Electrospray Emitters intended for Space Thruster Applications,” Technical Digest of the 18th International Vacuum Nanoelectronics Conference, pp. 83 – 84, Oxford, UK, July 10 – 14, 2005.
  • L. F. Velásquez, A. I. Akinwande, M. Martínez–Sánchez, “The Development an Experimental Characterization of a Planar Array of Micro-fabricated Electrospray Emitters for Space Propulsion Applications,” Technical Digest of the 18th International Vacuum Nanoelectronics Conference, pp. 370 – 371, Oxford, UK, July 10 – 14, 2005.
  • B. Gassend, L. F. Velásquez-García, A. I. Akinwande, M. Martínez–Sánchez, “Mechanical Assembly of Electrospray Thruster Grid,” IEPC 2005-101, 29th International Electric Propulsion Conference, Princeton NJ, USA, October 31 – November 4, 2005.

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