To Be Rescheduled
Seminar Series: Optical Science
Title: Linear and Nonlinear Optical Properties of Ultrastrongly Coupled Organic Cavity Polaritons
Ken Singer, Case Western Reserve University
Abstract: Exciton-polaritons in organic microcavities are of growing interest in both fundamental investigations and applications. In particular, the large exciton binding energies and oscillator strengths of conjugated organic molecules provide for strongly and ultrastrongly coupled polaritons at room temperature. These facts open the way for new generations of lasers and photonic devices. Multiple coupled microcavities introduce additional degrees of freedom, and have attracted increasing attention. Moreover, given the remarkable nonlinear optical properties of organic materials, organic cavity polaritons present intriguing possibilities for nonlinear optics that arise from the collective nature of the unique hybrid light-matter states. I will introduce the concepts of cavity polaritons and how organic materials provide unique features of both scientific and technical importance. Results on the linear and nonlinear optical properties include observation of a broken degeneracy in ultrastrongly coupled twin cavities beyond the rotating wave approximation, as well as mechanisms of the nonlinear optical response in cavity as seen in third harmonic generation and the optical Kerr effect. Prospects for applications in quantum and optical information will also be described.
Event is free and open to the public.
Light refreshments available shortly before seminar.