Journal article
Nondegenerate two-photon absorption in GaSb
Optics communications, Vol.304(1), pp.54-57
09/01/2013
DOI: 10.1016/j.optcom.2013.04.035
Abstract
The nonlinear optical absorption of n-type GaSb at 77K was investigated using time-resolved pump–probe techniques. By holding the pump wavelength constant and varying the probe wavelength, the nondegenerate two-photon absorption spectrum was measured for parallel and perpendicular polarization orientations between the pump and probe beams. The nondegenerate two-photon absorption coefficients, which were measured to be as large as 140cm/GW, are found to be 2–3times smaller for the perpendicularly polarized case than in the parallel polarization case. A Kramers–Krönig transformation allowed the determination of the dispersion of the nondegenerate nonlinear refractive index, which was found to be as large as 2×10−3cm2/GW.
Details
- Title: Subtitle
- Nondegenerate two-photon absorption in GaSb
- Creators
- Benjamin V Olson - University of IowaMichael P Gehlsen - University of IowaThomas F Boggess - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Optics communications, Vol.304(1), pp.54-57
- Publisher
- Elsevier B.V
- DOI
- 10.1016/j.optcom.2013.04.035
- ISSN
- 0030-4018
- eISSN
- 1873-0310
- Language
- English
- Date published
- 09/01/2013
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199837102771
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