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Optically induced DC current in unbiased dielectrics and semiconductors - a straightforward nonlinear optical effect

Jacob B Khurgin

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Abstract

We demonstrate theoretically that when well-below-the-bandgap femtosecond optical pulses propagate through a dielectric or semiconductor, DC current and charges are produced even though no real carriers are excited in the bands. This theory is confirmed by recent experiments.

© 2023 UFOXIII

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