Coherent Amplification of Ultrafast Molecular Dynamics in an Optical Oscillator

Seminar
Speaker
Avi Peer
Date
20/01/2016 - 14:00Add to Calendar 2016-01-20 14:00:00 2016-01-20 14:00:00 Coherent Amplification of Ultrafast Molecular Dynamics in an Optical Oscillator Optical oscillators present a powerful optimization mechanism. The inherent competition for the gain resources between possible modes of oscillation entails the prevalence of the most efficient single mode. We harness this 'ultrafast' coherent feedback to optimize an optical  field in time, and show that when an optical oscillator based on a molecular gain medium is synchronously-pumped by ultrashort pulses, a temporally coherent multimode field can develop that optimally dumps a general, dynamically-evolving vibrational wave-packet, into a single vibrational target state. Measuring the emitted field opens a new window to visualization and control of fast molecular dynamics. The realization of such a coherent oscillator with hot alkali dimers appears within experimental reach. seminar room on the 9th floor of the Nano-center המחלקה לפיזיקה physics.dept@mail.biu.ac.il Asia/Jerusalem public
Place
seminar room on the 9th floor of the Nano-center
Abstract

Optical oscillators present a powerful optimization mechanism. The inherent competition for the gain resources between possible modes of oscillation entails the prevalence of the most efficient single mode. We harness this 'ultrafast' coherent feedback to optimize an optical  field in time, and show that when an optical oscillator based on a molecular gain medium is synchronously-pumped by ultrashort pulses, a temporally coherent multimode field can develop that optimally dumps a general, dynamically-evolving vibrational wave-packet, into a single vibrational target state. Measuring the emitted field opens a new window to visualization and control of fast molecular dynamics. The realization of such a coherent oscillator with hot alkali dimers appears within experimental reach.

תאריך עדכון אחרון : 18/01/2016