I am a research assistant currently working in Basov’s infrared lab of UC San Diego. I have broad research interests in fundamental physics and technological applications related to light-matter interactions in low-dimensional systems and nanoscale materials.
I have been in active scientific research since eight years ago when I joined Prof. Yi Shi's group as a senior undergraduate student. I started my research in transport characterization of single quantum dot transistors where I observed quantum blockade effects. After entering the graduate school of Nanjing University, I chose graphene as the research topic for my master dissertation and performed optical spectroscopy on graphene. This work reported in Physical Review B 2008 was one of the first work of graphene optics that presented a more comprehensive map of graphene’s electronic structure beyond Dirac linear regime.
After joining Prof. Dimitri Basov’s group in UC San Diego, I started to work on infrared nano-optics and nano-plasmonics of graphene. By using a near-field nano-optic technique, I performed infrared nano-spectroscopy and nano-imaging experiments of graphene plasmons. These works reported in Nano Letters 2011 and Nature 2012 unveiled all the essential properties of graphene plasmons and established graphene plasmonics as a new research frontier of broad interests to both graphene and plasmonics communities. During these experiments, I also noticed that graphene plasmons were extremely sensitive to surface nano-structures and defects, so I came up with an idea of using surface plasmons as probe media for surface nano-characterizations. This method turned out to be extremely effective and efficient in probing the electronic properties of grain boundaries as reported recently on Nature Nanotechnology 2013.
My research was not limited to graphene optics and plasmonics. In the last several years, I was actively involved in other research projects including surface phonon polaritons of dielectric materials, metal-insulator transitions in transition-metal oxide and vibrational mode fingerprinting in polymers. I am also planning to study the nano-optic properties of novel materials including transition-metal dichalcogenides, topological insulators and high temperature superconductors.
If you are interested in my research, please feel free to contact me. My contact information is given below.