Piezo-optic effect of high-harmonic generation in semiconductors

We theoretically investigate the piezo-optic effect of high-harmonic generation (HHG) in shear-strained semiconductors. By focusing on a typical semiconductor, GaAs, we show that there is optical activity, meaning different responses to right-handed and left-handed elliptically polarized electric fi...

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Bibliographic Details
Published in:Physical review. B 2021-05, Vol.103 (20), Article 205202
Main Authors: Tamaya, Tomohiro, Kato, Takeo
Format: Article
Language:English
Subjects:
Electric fields
Energy gap
Harmonic generations
Higher harmonics
Nonlinear control
Nonlinear optics
Optical activity
Optics
Reciprocity
Semiconductors
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Summary:We theoretically investigate the piezo-optic effect of high-harmonic generation (HHG) in shear-strained semiconductors. By focusing on a typical semiconductor, GaAs, we show that there is optical activity, meaning different responses to right-handed and left-handed elliptically polarized electric fields. We also show that this optical activity is more pronounced for higher harmonics whose perturbative order exceeds the band-gap energy. These findings point to a useful pathway for strain engineering of nonlinear optics to control the reciprocity of HHG.
ISSN:2469-9950
2469-9969
DOI:10.1103/PhysRevB.103.205202