Dr. Samuel Graham IMG_1529-2

Dr. Graham is a Professor  and the Rae S. and Frank H. Neely Chair in the Woodruff School of Mechanical Engineering.   He is also the Associate Chair for Research and Innovation.  He holds a courtesy appointment with the School of Materials Science and Engineering and a joint appointment with the Energy and Transportation Science Division at Oak Ridge National Laboratory. Prior to joining Georgia Tech, he was a Senior Member of the Technical Staff at Sandia National Laboratories in Livermore, California.  He is a Fellow of American Society of Mechanical Engineers and a member of the Air Force Scientific Advisory Board.

Post Doctoral Fellows

Brian Foley

Brian received his Ph.D. in Mechanical Engineering from the University of Virginia in 2016 where his focus was on the use of thermoreflectance-based metrology techniques to investigate phonon transport in a variety of material systems.  Prior to his PhD, he worked for two and a half years at Virginia Diodes, Inc. making vector network analyzer (VNA) extension modules for calibrated S-parameter measurements from 75-1100GHz of various electrical devices and materials.  Brian also has a background in electrical engineering having received M.S. and B.E. degrees from Worcester Polytechnic Institute in 2009 and 2007, respectively. See more about Brian’s publications here.

He joined EMRL in November 2016 and is focusing on developing new photothermal and electrical characterization techniques to expand current capabilities.

Darshan Pahinkar
Darshan received his B.E. in Mechanical Engineering from the Government College of Engineering, Pune, India in 2006 and his M.E. in Mechanical Engineering from the Indian Institute of Science, Bangalore, India in 2009 with focus on Thermal and Fluids. For next two years, he worked as a Manager (Development) in Tata Motors Engineering Research Center, Pune, and his work involved thermal management of automobiles using CFD techniques. Darshan graduated with a PhD in Mechanical Engineering from Georgia Tech in Fall 2016. At the Sustainable Thermal Systems Laboratory, his doctoral research entailed investigation of novel thermal systems for gas separation and cooling applications. His current work at EMRL as a Post-Doctoral Fellow is focused on developing thermally-efficient and durable power electronics modules.

See more about Darshan’s publications here.

Graduate Students

lukeLuke Yates

Luke received his B.S. degree in Mechanical Engineering from the University of New Mexico in Dec. 2012. He joined the group in the Fall of 2013 as a Ph.D. candidate, receiving an NSF fellowship through the Georgia Tech IGERT  program. His research involves using optical techniques such as Raman Spectroscopy and TDTR to characterized thermal interface resistances in GaN nanostructures.

GeorgesGeorges Pavlidis

Georges joined EMRL as a graduate student in August 2013 after receiving his M.Eng degree in Mechanical Engineering from Imperial College London. Currently a Ph.D candidate, his research involves investigating different optical and electrical methods for thermal characterizing GaN based electronics including Raman Spectroscopy, Transient Thermoreflectance and Gate Resistance Thermometry. Other research interests include using Electroluminescence to characterize the defects in GaN HEMTs and developing thermo-electrical models for a deeper understanding of GaN device physics.

Minseok Ha

Minseok received his B.S. from Korea University and his M.S. from Georgia Tech. He is currently a Ph.D. candidate in Mechanical Engineering. His research work is a study of pool boiling heat transfer on microporous surfaces.

Nicholas Hines

Nick received a B.S. in Applied Physics from Morehouse College and a B.S. in Mechanical Engineering in May 2015 through the Atlanta University Center Dual Degree Engineering Program (AUC DDEP). He joined the group in the fall of 2015 receiving a President’s Fellowship and a GEM PhD Fellowship supported by Corning Incorporated. Nick is currently working to complete his M.S. in Mechanical Engineering Thesis in pursuit of the Ph.D. in Mechanical Engineering. His current research interests are dedicated toward the realization of advanced thermal management solutions for GaN-based electronic devices by leveraging optical and electrical techniques including Raman and Photoluminescence Spectroscopy, Electrical Resistance Thermometry, and Transient Thermoreflectance techniques for thermal and thermomechanical characterization of wide bandgap (WBG) semiconductor materials.

WaleWale Odukomaiya

Wale received his B.S. degree in Mechanical Engineering from the Georgia Institute of Technology in May 2013. Previous research includes experimental investigations of heat transfer and pressure drop in gas condenser heat exchangers. As part of the GEM fellowship program at Oak Ridge National Laboratory (ORNL) he worked on characterizing the performance of variable-capacity heat pump systems in residential buildings. Wale joined the group in the Fall of 2013; his current work is focused on developing dynamic, whole-building simulation modules for energy efficient building energy/mechanical systems, in collaboration with the Building Technologies Research and Integration Center at ORNL.

AnkitAnkit K. Singh

Ankit received his B.Tech in Ceramic Engineering from Indian Institute of Technology (Banaras Hindu University), Varanasi in 2010 and MS in Materials Science & Engineering from the University of Texas at Arlington in Spring 2013. He joined the group in Fall 2013 as a PhD candidate and is working developing ultra-barrier films for flexible electronics including thin film solar cells and biological implants.    His focus is on understanding the mechanical and corrosion reliability issues for these applications.

Zhe Cheng
Zhe Cheng received his Bachelor with the highest honor in Thermal and Power Engineering from Huazhong University of Science and Technology (HUST), China, in 2013. At HUST he received more than ten awards and scholarships, including Baosteel Exceptional Student Scholarship, Heatcraft Awards, and National Scholarship. After that, he went to U.S. and obtained his Master Degree in Mechanical Engineering at Iowa State University. In the fall of 2015, he came to Georgia Tech to pursue his PhD in Mechanical Engineering. Zhe’s current research focuses on thermal metrology and tunable thermal conduction in perovskite and metal oxides. In his free time, he is a fan of Martial Arts. He was a Tai Chi coach in the Kongfu association at HUST. Zhe is co-advised by Prof. Cola Baratunde.

Please find his CV here.


Kyungjin Kim

Kyungjin joined the group in 2015 as a Ph.D. candidate after finishing her B.S. from – Korea Advanced Institute of Science & Technology in 2014. Currently, she is working on mechanics of thin films to improve the mechanical reliability of flexible electronics.

Gabe Cahn
Gabe received his B.S. in Mechanical Engineering from the University of Maryland, College Park.  After several years in the defense industry designing packaging and next-gen cooling systems for high power electronic systems, picking up a Masters from Johns Hopkins along the way,  he decided to return to academia for a PhD. His research is in mechanics of thin films for flexible electronic applications.


Samuel Kim
Sam received his B.S in Mechanical Engineering from Yonsei University and M.S. in Mechanical Engineering from Georgia Tech in 2011 and 2014, respectively. Prior to joining the Graham Lab in the fall of 2017, he worked at Korea Industrial Institute of Technology (KITECH) in Micro/Nano Scale Manufacturing R&D Group. He is interested in micro/nano scale heat transport phenomena and is currently working on the investigation of thermal properties of wide bandgap power electronics with photothermal and electrical characterization techniques.

George Woodruff School of Mechanical Engineering