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Second harmonic generation by intersubband transitions in step quantum wells

✍ Scribed by Zhenghao Chen; Dafu Cui; Melhua Li; Chao Jiang; Junming Zhou; Guozhen Yang

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
99 KB
Volume
13
Category
Article
ISSN
0749-6036

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✦ Synopsis

We report experimental evidence of Second-harmonic generation (SHG) due to intersubband transitions in (G a A s / A l_{x} G a_{1-x} A 8) step quantum wells using a multipass or "waveguide" structure. A SHG conversion efficiency of (3.46 \times 10^{-4}) has been achieved which is one order of magnitude above the value obtained for the Brewster's angle arrangement.

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