https://scholars.lib.ntu.edu.tw/handle/123456789/634369
Title: | Observation of huge nonlinear absorption enhancement near exciton resonance in GaN | Authors: | Lin, Kung Hsuan Chern, Gia Wei Huang, Yin Chieh CHI-KUANG SUN Keller, Stacia Mishra, Umesh DenBaars, Steven P. |
Issue Date: | 1-Jan-2003 | Source: | Optics InfoBase Conference Papers | Abstract: | Huge nonlinear-absorption enhancement was observed in GaN system at the excitonic transition wavelength. This excitonic enhancement is attributed to four-wave-mixing type nonlinear processes. The peak nonlinear coefficient is at least 3000 cm/GW corresponding to an enhancement factor of >200. The dephasing time of the exciton was also observed to be 60-160 fs in GaN thin film at room temperature. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/634369 | ISBN: | 1557527490 |
Appears in Collections: | 電機工程學系 |
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