Ultrafast Properties Of Multilayer Heterostructures Based On Gaas/(Alga)(X)O-Y

M V Ermolenko,S A Tikhomirov,V V Stankevich,O V Buganov, S V Gaponenko,A S Shulenkov

PHOTONICS, DEVICES, AND SYSTEMS IV（2008）

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摘要

Nonlinear optical properties of GaAs/(AlGa)(x)O-y heterostructures using interband excitation by 150 fs laser pulses is reported. A considerable wideband nonlinear response is observed. Mean decay time for nonlinear reflection in heterostructures ranges from 1.5 to 3.5 ps. The shift of the GaAs energy-band structure caused by the high tensions in GaAs/( AlGa)(x)O-y structure is observed.

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关键词

Ultrafast optical nonlinearities, Heterostructures, Electron-hole plasma, Optical switching, Photonic crystals

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