Intersubband resonant enhancement of second-harmonic generation in GaN∕AlN quantum wells
✍ Scribed by Nevou, L.; Tchernycheva, M.; Julien, F.; Raybaut, M.; Godard, A.; Rosencher, E.; Guillot, F.; Monroy, E.
- Book ID
- 121707985
- Publisher
- American Institute of Physics
- Year
- 2006
- Tongue
- English
- Weight
- 435 KB
- Volume
- 89
- Category
- Article
- ISSN
- 0003-6951
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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 mag
A systematic procedure applied to a step-asymmetric quantum well in order to maximize intersubband bound-continuum second-order susceptibility is described. The possibility is explored of obtaining resonantly enhanced nonlinear optical susceptibilities in quantum wells with two bound and a continuum