Biography

Currently, Ali Serpengüzel is a Professor of Physics and the Founder and the Principal Investigator of the Microphotonics Research Laboratory at Koç University, where he is actively continuing his research on the photonic applications of microsphere resonators with an emphasis on silicon photonics and liquid crystal photonics.

Ali Serpengüzel contributed significantly to the linear and nonlinear laser spectroscopy of high quality factor dielectric microcavities. Work on stimulated Raman scattering in microdroplets led to the first publications on stimulated Raman scattering in sprays. Such techniques are being used in order to understand the characteristics of sprays. He was also involved in pioneering work on the coupling of dielectric microcavities to optical fibers. Such dielectric microcavities are being investigated as channel add-drop filters and devices in photonic integrated circuits (PICs). Other work has included the study of single and two photon absorption induced lasing in microdroplets. Additional research work has been concerned primarily with photonic devices based on amorphous silicon and coupled cavity semiconductor diode lasers, as well as fundamental studies of the donor-acceptor levels in layered semiconductors.

Research included multilayer dielectric and metal mirror growth technology to modulate the luminescence of amorphous silicon in the visible region of the optical spectrum. He has also contributed to the development of microcavity based hot electron light emitting semiconductor devices. He has now shifted much of his research effort into the Integrated Photonics with his group introduction of distributed meandering waveguides, as well as silicon microsphere based optoelectronic devices for optical fiber communication.