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Nonlinear Light-matter Interaction in Photonic Crystals

October 9, 2013 11:30AM to 12:30PM
Presenter 
Chad Husko, CUDOS, University of Sydney
Location 
Building 440, Room A105-106
Type 
Seminar
Series 
NST Nanoscience Seminar

Solitons, Plasma and Singlephoton Sources

Abstract:
Photonic crystals (PhC), are periodic dielectric media that possess photonic band gaps, a frequency range in which certain light wavelengths, or colors, are forbidden. These ordered materials are the optical equivalent to electronic semiconductors, such as silicon, that pervade our daily lives.

Photonic crystals enable exciting opportunities for nonlinear optics at the chip-scale due their unique ability to localizelight, strongly enhance light-matter interactions via slow-light, along with highly tunable dispersion. In addition to these more fundamental studies, these compact and energy-efficient devices are compelling candidates for ultrafast all-optical applications in integrated photonics.

In this talk we report on:

  • (i) solitons in semiconductor photonics crystals [1]
  • (ii) nonlinear optical waves in the multiphoton plasma regime [2] and (iii) nonlinear loss limits to single-photon sources in integrated waveguides [3].

References:
[1] P. Colman*, C. Husko*, S. Combrié*, I. Sagnes, C. W. Wong, A. De Rossi, “Observation of soliton pulse compression in photonic crystal waveguides,” Nature Photonics, 4, 862 (2010)
[2] C. Husko, S. Combrié, P. Colman, J. Zheng, A. De Rossi, and C.W. Wong, “Soliton dynamics in the multiphoton plasma regime,” Scientific Reports 3, 1100 (2013)
[3] C. Husko*, A. Clark* et al, “Multi-photon absorption limits to heralded single photon sources,” Under review (2013)