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NONLINEAR EXCITONIC OPTICAL-ABSORPTION IN GAINAS/INP QUANTUM-WELLS

Abstract:
We have studied the saturation of optical absorption in GaInAs/InP quantum wells at room temperature. Using optical excitation from a tunable cw Co:MgF2 laser, we find a saturation intensity of 70 W cm -2 when exciting resonantly at the n=1 heavy-hole exciton, and we deduce values of the nonlinear absorption and refraction coefficients -60 cm W-1 and -0.3 cm2 kW-1, respectively. The saturation intensity in the quantum well is significantly lower than in bulk GaInAs, and also in GaAs quantum wells.
Publication status:
Published

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Publisher copy:
10.1063/1.98876

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Journal:
APPLIED PHYSICS LETTERS More from this journal
Volume:
51
Issue:
1
Pages:
30-32
Publication date:
1987-07-06
DOI:
ISSN:
0003-6951
Language:
English
Pubs id:
pubs:24060
UUID:
uuid:a98f5e43-f13b-4e45-bccd-e0dab4ae38ba
Local pid:
pubs:24060
Source identifiers:
24060
Deposit date:
2012-12-19

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