All-optical spin-dependent polarization switching in Bragg-spaced quantum well structures

W. J. Johnston, M. Yildirim, J. P. Prineas, Arthur L. Smirl, H. M. Gibbs, G. Khitrova

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


All-optical polarization switching is demonstrated in a resonant photonic band-gap structure consisting of Bragg-spaced quantum wells (BSQWs). The switch takes advantage of the large spin-dependent optical nonlinearities and the ultrafast recovery present in BSQWs to produce large throughputs (greater than 40%), high contrast ratios (greater than 40 dB), and large optical bandwidths (∼0.6 THz), where both switching time and sample recovery time are control-pulse-width limited.

Original languageEnglish (US)
Article number101113
JournalApplied Physics Letters
Issue number10
StatePublished - Sep 5 2005

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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