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  • Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011
  • (Optica Publishing Group, 2011),
  • paper I1004

Extremely Nondegenerate Two-Photon Detection of Sub-Bandgap Pulses

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Abstract

Our observation of two-to-three orders of magnitude enhancement of nondegenerate two-photon absorption in direct-gap semiconductors has led to gated detection of subgap femtosecond pulses, e.g. measurement of 200fs 5.6μm pulses in a GaN photodiode.

© 2011 AOS

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