Ultrafast adiabatic control of reciprocity and coherent backscattering in random scattering media

Muskens, Otto L., van der Beek, Timmo and Wellens, Thomas (2013) Ultrafast adiabatic control of reciprocity and coherent backscattering in random scattering media. In Proceedings SPIE 8623: Ultrafast Phenomena and Nanophotonics XVII. SPIE. 86231L-86231L . (doi:10.1117/12.2013706).

Record type: Conference or Workshop Item (Paper)

Abstract

We experimentally demonstrate ultrafast control over reciprocal light paths in random media. The combination of multiple scattering and coherence of light gives rise to strong interference contributions in light transport. An important interference correction to diffusion theory is the coherent backscattering effect, the constructive interference of reciprocal light paths in the backscattering direction. Our experiments show that the phase coherence between these paths can be suppressed by introducing dynamics faster than the photon dwell time. This adiabatic dephasing is of interest for its potential for controlling weak and strong localization and adiabatic storage and release of photonic information.

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Published date: 14 March 2013

Additional Information: Copyright 2013 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Venue - Dates: SPIE Photonics West, , San Francisco, United States, 2010-01-23 - 2010-01-28

Keywords: nanophotonics, multiple scattering, ultrafast, photonic media, nonlinear optics, optical switching

Organisations: Quantum, Light & Matter Group