Abstract
We have successfully observed the intersubband absorption in doped as well as in undoped, unstrained quantum well structures of In0.53Ga0.47As/In0.52Al0.48As . The absorption is well resolved near the short-wavelength limit in this structure. Within the accuracy of our measurements, the intersubband transition is observed only in TM mode polarizations in both doped and undoped structures.
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More From: Journal of Nonlinear Optical Physics & Materials
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