Abstract
We have performed the first experiment on the free-electron laser (CLIO) at the Laboratoire pour l'Utilisation du Rayonnement Électromagnétique (LURE). In a transmission experiment we observed strong power limiting at wavelengths longer than the absorption edge associated with induced free carrier absorption produced by direct interband two-photon transitions in InSb. We have estimated the two-photon absorption (TPA) coefficient (β) of InSb at 8.9 μm to be 2 cm MW-1, by fitting the power-limiting effect with a simple theoretical model. An important feature of this result is that we are utilizing the broad tunability of the FEL to explore the TPA theory to shorter wavelengths than hitherto available with CO2 lasers. The result is in broad agreement with the longer-wavelength measurements of Sheik-Bahae et al.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
E. W.van STRYLAND, H. VANHERZEELE, M. A. WOODALL, M. J. SOILEAU, A. L. SMIRL, S. GUHA and F. BOGGESS, Opt. Eng. 24 (1985) 613.
F. BOGGESS, A. L. SMIRL, S. C. MOSS, I. W. BOYD and E. W.van STRYLAND, IEEE J. Quantum Electron. 21 (1985) 488.
A. C. WALKER, A. K. KAR, WEI JI, U. KELLER and S. D. SMITH, Appl. Phys. Lett. 48 (1986) 683.
C. R. PIDGEON, B. S. WHERRETT, A. M. JOHNSTON, J. DEMPSEY and A. MILLER, Phys. Rev. Lett. 42 (1979) 1785.
M. H. WEILER, Solid State Commun. 39 (1981) 937.
B. S. WHERRETT, J. Opt. Soc. Am. B 1 (1984) 67.
E.van STRYLAND, S. GUHA, H. VANHERZEELE, M. A. WOODALL, M. J. SOILEAU and B. S. WHERRETT, Opt. Acta 33 (1986) 381.
M. SHEIK-BAHAE, J. WANG, J. R. DeSALVO, D. J. HAGAN and E. W.van STRYLAND, Opt. Lett. 17 (1992) 258.
M. SHEIK-BAHAE, T. ROSSI and J. KWOK, J. Opt. Soc. Am. B 4 (1987) 1964.
D. C. HUTCHINGS and E. W. VAN STRYLAND, J. Opt. Soc. Am. B, in press.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Murdin, B.N., Merveille, C., Kar, A.K. et al. Infrared free-electron laser measurement of power limiting by two-photon absorption in InSb. Opt Quant Electron 25, 171–175 (1993). https://doi.org/10.1007/BF00420762
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00420762