Temporal Optical Superoscillations

Seminar
Speaker
Dr. Alon Bahabad, Department of Physical Electronics School of Electrical Engineering, Tel-Aviv University
Date
10/11/2015 - 13:00Add to Calendar 2015-11-10 13:00:00 2015-11-10 13:00:00 Temporal Optical Superoscillations We consider possible applications of temporal superoscillatory optical signals. First we discuss the delivery of a super-oscillatory optical signal through a medium with an absorbing resonance at the super-oscillation frequency. While a regular signal oscillating at the absorption resonance frequency would be completely absorbed after a few absorption lengths, it is found that the superoscillation undergoes quasi-periodic revivals over optically thick distances. In the second part of the talk we present experimental results where the use of a superoscillating optical beat breaks the optical temporal   Fourier resolution limit by an unprecedented 75%. Such superoscillatory beats can substantially increase the temporal resolution of light-driven measurement and control processes.    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

We consider possible applications of temporal superoscillatory optical signals. First we discuss the delivery of a super-oscillatory optical signal through a medium with an absorbing resonance at the super-oscillation frequency. While a regular signal oscillating at the absorption resonance frequency would be completely absorbed after a few absorption lengths, it is found that the superoscillation undergoes quasi-periodic revivals over optically thick distances. In the second part of the talk we present experimental results where the use of a superoscillating optical beat breaks the optical temporal   Fourier resolution limit by an unprecedented 75%. Such superoscillatory beats can substantially increase the temporal resolution of light-driven measurement and control processes. 

 

תאריך עדכון אחרון : 01/11/2015