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Figure 3
Intersubband stimulated emission pump-probe experiment using a two-colour CLIO FEL (Gauthier et al., 1997BB5). (a) Schematic diagram of the experimental set-up. MCT = mercury-cadmium-tellurium. (b) Calculated conduction band profile of the asymmetric coupled quantum wells. The arrows indicate the absorption and emission processes. (c) Intersubband stimulated gain at 12.5 mm and 77 K, for 0.7 and 2 mm-long waveguide, measured versus the time delay between the pump and probe beams at 9.2 and 12.5 µm, respectively. (d) Intersubband stimulated gain spectrum as a function of the probe wavelength.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 5| Part 3| May 1998| Pages 293-298
https://doi.org/10.1107/S0909049597015392
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