Semiclassical model of stimulated Raman scattering in photonic crystals

Florescu, Lucia and Zhang, Xiang. (2005) Semiclassical model of stimulated Raman scattering in photonic crystals. Physical Review E, 72 (1). 016611. ISSN 1539-3755

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Abstract

We study the stimulated Raman scattering (SRS) of light from an atomic system embedded in a photonic crystal and coherently pumped by a laser field. In our study, the electromagnetic field is treated classically and the atomic system is described quantum mechanically. Considering a decomposition of the pump and Stokes fields into the Bloch modes of the photonic crystals and using a multiscale analysis, we derive the Maxwell-Bloch equations for SRS in photonic crystals. These equations contain effective parameters that characterize the SRS gain, the nonlinear atomic response to the electromagnetic field, and the group velocity and that can be calculated in terms of the Bloch modes of the unperturbed photonic crystal. We show that if the pump laser frequency is tuned near a photonic band edge and the atomic system is carefully chosen such that the Stokes mode matches another photonic band edge, low-threshold, enhanced Raman amplification is possible. Possible physical realizations of SRS in photonic crystals are also discussed.

Item Type: Article
Uncontrolled Keywords: Stimulated Raman Scattering
InterNano Taxonomy: Nanomanufacturing Characterization Techniques > Diffraction and Scattering
Nanoscale Objects and Nanostructured Materials > Nanocomposites > Optical
Collections: Nanomanufacturing Research Collection
Depositing User: Moureen Kemei
Date Deposited: 22 Mar 2010 20:11
Last Modified: 22 Mar 2010 20:11
URI: http://eprints.internano.org/id/eprint/350

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