Research Areas
Silicon Photonic Integrated Circuits
Silicon photonics has emerged as a powerful platform for high-density photonic integrated circuits (PICs) because complex photonic circuits with a large number of components can be monolithically integrated at low cost and with high yield by leveraging an advanced complementary metal-oxide-semiconductor (CMOS) manufacturing process. Our lab is developing the-state-of-the-art silicon photonic devices such as large-scale silicon photonic switches, ultra-compact silicon phase shifters, and silicon polarization control devices.
Nanophotonics
Optical nano-antennas, similar to their radio frequency (RF) counterparts, capture free-space electromagnetic radiation and focus it to a nano-scale region (such as the antenna feed gap) well beyond the diffraction limit. The amount of field enhancement in the high-field region of the optical antennas is the most important parameter used to characterize the performance of the antenna for applications such as sensitive photodetection, heat-assisted magnetic recording, and surface-enhanced Raman spectroscopy (SERS). We are doing theoretical and experimental research on optical nano-antennas to maximize their light-matter interactions and field enhancements for various interesting physical phenomena.
