DIFFER
DIFFER Publication
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Author | |
Abstract |
We present second-harmonic generation experiments in p-doped asymmetrically stepped quantum wells using the emission of a free-electron laser in the wavelength interval between 13 and 18 mu m. The wells are designed such that the three fewest valence-subbands are about equally spaced. We measured the angular and frequency dependence of the second-harmonic signal excited by intense laser irradiation chosen to be nearly resonant with the transitions between the three lowest valence subbands. We see evidence of the optical second-order susceptibility components chi(xxz)((2)), chi(zxx)((2)) and chi(zxy)((2)), chi(xyz)((2)) in the quantum wells and determine their enhancement with respect to chi(xyz)((2)) of bulk GaAs. |
Year of Publication |
1997
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Journal |
Physical Review B
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Volume |
56
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Number |
16
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Number of Pages |
10428-10434
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Date Published |
Oct 15
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ISBN Number |
0163-1829
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DOI | |
PId |
eb8e5f4fe7084a250885c6385b24d93d
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Journal Article
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