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Laser-Induced Above-Band-Gap Transparency in GaAs

Published inPhysical review letters, vol. 93, no. 15
Publication date2004-10-04
First online date2004-10-04
Abstract

We report the observation of large (∼40%) laser-induced above-band-gap transparency in GaAs at room temperature. The induced transparency is present only during the pulse width of the driving midinfrared laser pulses and its spectral shape is consistent with a laser-induced blueshift of the band edge. Our simulations based on the dynamic Franz-Keldysh effect reproduce the salient features of the experimental results, demonstrating, in particular, that the amount of the band edge shift is approximately given by the ponderomotive potential.

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Citation (ISO format)
SRIVASTAVA, Ajit et al. Laser-Induced Above-Band-Gap Transparency in GaAs. In: Physical review letters, 2004, vol. 93, n° 15. doi: 10.1103/PhysRevLett.93.157401
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ISSN of the journal0031-9007
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