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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea

| PUBLISHED BY THE OPTICAL SOCIETY OF KOREA

  • Vol. 1, Iss. 2 — Sep. 30, 1997
  • pp: 100–103

Femtosecond degenerate and nondegenerate pump-probe experiments in bulk GaAs below the band gap

J. S. Yahng, D. S. Kim, N.Del Fatti, and F. Vallee  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 1, Issue 2, pp. 100-103 (1997)


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Abstract

We perform degenerate and nondegenerate pump-probe experiments on bulk GaAs at 100 K below the band gap. We mostly observe a negative differential transmission signal both in the degenerate and nondegenerate experiments. We interpret our signal as due to two-photon absorption. This negative signal has a different origin from the normally considered band gap renormalization for resonant excitations.

© 1997 Optical Society of Korea

History
Original Manuscript: August 5, 1997
Published: September 1, 1997

Citation
J. S. Yahng, D. S. Kim, N.Del Fatti, and F. Vallee, "Femtosecond degenerate and nondegenerate pump-probe experiments in bulk GaAs below the band gap," J. Opt. Soc. Korea 1, 100-103 (1997)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-1-2-100


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