Propagation effects in spectrally resolv
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Bipul Pal; A.S Vengurlekar; A.V Gopal; S.S Prabhu
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Article
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2004
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Elsevier Science
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English
โ 319 KB
We perform spectrally resolved degenerate four wave mixing (DFWM) measurements by resonantly exciting 1s heavy hole excitons in 8 and 17:5 nm wide GaAs multiple quantum wells (MQW) with subpicosecond laser pulses. The signal is detected in a self-di raction mode in backward geometry. The DFWM spectr