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Optical bistability in InSb at room temperature with two‐photon excitation

URN to cite this document:
Kar, A. K. ; Mathew, J. G. H. ; Smith, S. D. ; Davis, D. ; Prettl, Wilhelm
Date of publication of this fulltext: 26 Oct 2010 12:18


We report the observation of optical bistability in an InSb resonator at room temperature. This effect and fringe shifts were caused by nonlinear refraction induced by two‐photon absorption of radiation from a single longitudinal mode injection‐locked pulsed CO2 laser operating at 9.6–10.6 μm. Intensities as low as 100 kW/cm2 were found to be sufficient to tune the 250‐μm‐thick cavity through a ...


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