Experiments reveal that the near surface second-order nonlinear optical susceptibility, chi(2)(2omega,omega,omega), is significantly affected by band-bending induced-electric fields in the depletion region of GaAs(001). Both n- and p-type GaAs samples exhibit a reduction of the bulk second-order susceptibility chi(yxz)(2) independent of electric field direction. A three band theoretical model was used to qualitatively explain these observations.
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ELECTROTECH LAB,DIV RADIO & OPTO ELECTR,LASER RES SECT,TANASHI,TOKYO 188,JAPANELECTROTECH LAB,DIV RADIO & OPTO ELECTR,LASER RES SECT,TANASHI,TOKYO 188,JAPAN
MIYAZAKI, K
SATO, T
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ELECTROTECH LAB,DIV RADIO & OPTO ELECTR,LASER RES SECT,TANASHI,TOKYO 188,JAPANELECTROTECH LAB,DIV RADIO & OPTO ELECTR,LASER RES SECT,TANASHI,TOKYO 188,JAPAN
SATO, T
KASHIWAGI, H
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ELECTROTECH LAB,DIV RADIO & OPTO ELECTR,LASER RES SECT,TANASHI,TOKYO 188,JAPANELECTROTECH LAB,DIV RADIO & OPTO ELECTR,LASER RES SECT,TANASHI,TOKYO 188,JAPAN