![Yeh_N-C photo Yeh_N-C photo](https://i0.wp.com/yehgroup.caltech.edu/files/2016/07/Yeh_N-C-photo-2-200x300.jpg)
Nai-Chang Yeh
Principle Investigator, Thomas W. Hogan Professor of Physics
Mail Code 149-33, Condensed Matter Physics, Caltech
1200 E. California Blvd., Pasadena, CA 91125, USA.
TEL: +1-626-395 4313 E-Mail: ncyeh[a]caltech.edu
![WHC WHC](https://i0.wp.com/yehgroup.caltech.edu/files/2024/07/WHC-193x300.jpg)
Wen-Hao Chang
Post doctorate fellow
Expertise : Device Fabrication, Electrical transport and optoelectronic characterizations in low-dimensional materials, Spectroscopic analysis including photoluminescence, Raman spectroscopy, and X-ray photoemission spectroscopy (XPS).
![IQIMHeadshots-42 IQIMHeadshots-42](https://i0.wp.com/yehgroup.caltech.edu/files/2024/02/IQIMHeadshots-42-200x300.jpg)
Duxing (Jason) Hao
G7 Graduate Student at the Department of Physics
Expertise : Device Fabrication, Transport measurements, Graphene growth, Strain engineering of 2D materials
![IQIMHeadshots-2 IQIMHeadshots-2](https://i0.wp.com/yehgroup.caltech.edu/files/2024/02/IQIMHeadshots-2-200x300.jpg)
Akiyoshi Park
G6 Graduate Student at the Department of Physics
Expertise : Scanning Tunneling Microscopy (STM), Instrumentation of optically-assisted laser STM, First-principle calculations, Research on topological insulators, 2D materials and high Tc superconductors.
Daniel Anderson
G6 Graduate Student at the Department of Material Science
Expertise : Growth of 2D Materials using Chemical Vapor Deposition (CVD)
![IMG_0042 IMG_0042](https://i0.wp.com/yehgroup.caltech.edu/files/2024/07/IMG_0042-200x300.jpg)
Jen-Te Chang
G2 Graduate Student at the Department of Physics
Expertise : Scanning Tunneling Microscopy (STM), first principle calculations