Principal Investigator

Ken Shepard
Lau Family Professor of Electrical Engineering, Professor of Biomedical Engineering
shepard@ee.columbia.edu
Telephone: +1 646-205-0438
Office: 1019 CEPSR, Mail Code: 4712

Staff Associates

Postdoctoral Research Associates

Abhinav Parihar
Postdoctoral Research Associate
abhinav.parihar@columbia.edu
Bjoern Hellenkamp
Postdoctoral Research Associate
b.hellenkamp@columbia.edu
Telephone: (646) 205-0474
David Lynall
Postdoctoral Research Associates
dgl2129@columbia.edu
Telephone: (917) 836-7170
Heyu Yin
Postdoctoral Research Associate
hy2693@columbia.edu
Telephone: 517-898-6253
Ilke Uguz
Postdoctoral Research Associate
ilkeuguz@googlemail.com
Jason Fabbri
Postdoctoral Research Associate
jf3229@columbia.edu
Taeju Lee
Postdoctoral Research Associate
tl3203@columbia.edu
Victoria Andino Pavlovsky
Postdoctoral Research Associate
va2264@columbia.edu

PhD Students

Boyan Penkov
NDSEG Fellow
boyan@ee.columbia.edu
Telephone: (646) 205-0474 ext. 1209
Eric Pollmann
Graduate Research Assistant
ehp2121@columbia.edu
Erik Loscalzo
Graduate Research Assistant
Girish Ramakrishnan
Graduate Research Assistant
gr2469@columbia.edu
Henry Overhauser
Graduate Research Assistant
henry.overhauser@columbia.edu
Jinwon Kim
Graduate Research Assistant
jk4537@columbia.edu
John Stanton
Graduate Research Assistant
jws2180@columbia.edu
Telephone: (646) 205-0474 ext. 1221
Kevin Renehan
Graduate Research Assistant
kr2743@columbia.edu
Mor Shimshi
Graduate Research Assistant
mor.shimshi@columbia.edu
Nanyu Zeng
Graduate Research Assistant
nz2252@columbia.edu
Prashant Muthuraman
Graduate Research Assistant
Rizwan Huq
Graduate Research Assistant
rizwanhuq@ee.columbia.edu
Scott Mitchell Kontak
Graduate Research Assistant
smk2247@columbia.edu
Shiva Letchumanan
Graduate Research Assistant
jl5263@columbia.edu
Siddhesh Atul Gandhi
Graduate Research Assistant
sg3877@columbia.edu
Sinan Yilmaz
Graduate Research Assistant
sy2943@columbia.edu
Taesung Jung
Graduate Research Assistant
tj2354@columbia.edu
Volkan Arslan
Graduate Research Assistant
va2403@columbia.edu
Ye Zhang
Graduate Research Assistant
yz4174@columbia.edu

Undergraduate Students

Lab Administrator

Evelyn Zheng
Group Administrator
ez2369@columbia.edu
Telephone: (646) 205 - 0474

Lab Alumni

  • Jakob Buchheim, postdoc through September, 2022, currently at DLR Institute of Quantum Technologies, Ulm, Germany.
  • Jakub Jadwiszczak, postdoc through October, 2022, current at Nature Publishing Group, Berlin, Germany.
  • Adriaan Taal, Ph. D., May, 2022, currently at Apple Computer, Cupertino, CA
  • Filipe Cardoso, postdoc through September, 2022, current Assistant Professor at Delft University of Technology.
  • Maria Vomero, Research Staff Associate through October, 2021, currently at Precision Neuroscience, New York, NY
  • Jeff Sherman, Ph.D., December 2021, currently at Philips, Boston, MA
  • Jaebin Choi, Ph.D., June 2021, currently at MIT, Cambridge, MA
  • Erik Young, Research Staff Associate through December, 2020
  • Jake Rabinowitz, Ph.D., December, 2020
  • Jeff Elloian, Ph.D., December, 2020, current employer: MIT Lincoln Labs
  • Daniel Fleischer, Ph.D., May, 2020
  • Jordan Thimot, Ph.D., August, 2020
  • Yihan Zhang, Ph. D., May, 2020, currently at Peking University.
  • Yoonhee Lee, Ph.D., Postdoc through April, 2020, currently at Daegu Gyeongbuk Institute of Science and Technology.
  • Sajjad Moazeni, Ph. D., Postdoc through July, 2020, currently Assistant Professor at University of Washington, Seattle.
  • Tiago Costa, Postdoc through 2019, currently Assistant Professor at TU-Delft, the Netherlands.
  • Chen Shi, Ph.D. December, 2019, current employer: Apple Computer, Cupertino, CA.
  • Peijie Ong, Ph.D. December, 2019, current employer: Quicksilver Biosciences, Inc., New York, NY
  • David Tsai, Ph.D., research staff associate through 3/2019, currently Senior Lecturer at The University of New South Wales, Syndey, Australia
  • Kukjoo Kim, Ph.D. postdoc through 3/2019, currently Senior Researcher at Electronics and Telecommunications Research Institute (ETRI), South Korea
  • Yu Zheng, Ph.D., June, 2003, currently at Cadence Design Systems, San Jose, CA
  • Steven Chan, Ph.D., June, 2005, currently at GLOBALFOUNDRIES, Santa Clara, CA
  • Yee Li, Ph.D., June, 2005, currently at Intel Corporation, Hillsboro, OR
  • George Patounakis, Ph.D., June, 2005, currently at Robert Wood Johnson Medical School
  • Saravananan Rajapandian, Ph.D., June, 2005, currently at Silicon Laboratories, Austin, TX
  • Anup Jose, Ph.D., December, 2005, currently at AMD, Boxborough, MA
  • Zheng Xu, Ph.D., June, 2007, currently at AMD, Boxborough, MA
  • David Schwartz, Ph.D., June, 2008, currently at Xerox PARC
  • Peter Levine, Ph.D., July, 2009, currently assistant professor at University of Waterloo, Canada
  • David Huang, Ph.D., May, 2010, currently at Marvell Semiconductor, Sunnyvale, CA
  • Sebastian Sorgenfrei, Ph.D., August, 2011, currently at Intel Corporation, Hillsboro, OR
  • Simeon Realov, Ph.D., December, 2011, currently at Intel Corporation, Hillsboro, OR
  • Matt Johnston, Ph.D., May 2012, currently Assistant Professor of Electrical and Computer Engineering, Oregon State University
  • Jacob Rosenstein, Ph.D., December, 2012, currently assistant professor at Brown University, Providence, RI
  • Noah Sturcken, Ph.D., December, 2012, currently Chief Executive Officer at Ferric Semiconductor Inc., New York, NY
  • Ryan Davies, Ph.D., postdoc through 2012, currently at Ferric Semiconductor, New York, NY
  • Siddharth Ramakrishnan, Ph.D., postdoc through 2012, currently assistant professor at University of Puget Sound, Seattle, WA
  • Ryan Field, Ph.D., December, 2013, Los Angeles, CA
  • Haig Norian, Ph.D., December, 2013, currently at Kulite Semiconductor Products, Leonia, NJ
  • Cory Dean, Ph.D., postdoc through 2013, currently Associate Professor of Physics, Columbia University
  • Michael Lekas, Ph.D., December 2014, currently at Ferric Semiconductor
  • Dan Bellin, Ph.D., May 2015, currently at 4Catalyzer, Inc.
  • Jared Roseman, Ph.D., May 2015, President, Roseman Group, San Francisco, CA
  • Steven Warren, Ph.D., April, 2016, currently at PacBio, Menlo Park, CA
  • Eyal Aklimi, Ph.D., June 2016, Lead Electrical Engineer, Vium, San Mateo, CA
  • Tarun Chari, Ph.D., June 2016, currently at ReWatt Power, Calgary, Alberta, Canada
  • Hyungsik Kim, Ph.D. December, 2017, currently at Samsung
  • Changyuk Lee, Ph.D., postdoc through 2018, currently at KIST, South Korea
  • Siddharth Shekar, Ph.D., December 2018, currently at Apple Computer , Cupertino, CA
  • Kevin Tien, Ph.D., December 2018, currently Research Staff Member at IBM T.J. Watson Research Center, Yorktown Heights, NY
  • Scott Trocchia, Ph.D., December, 2018, currently at Lumiode, Inc.
  • Krishna Jayant, Ph.D., postdoc through 2018, currently Assistant Professor of Biomedical Engineering, Purdue University
  • Sefi Vernick, Ph.D., postdoc through 2018, currently at Agricultural Research Organization, Ministry of Agriculture and Rural Development, State of Israel