Title :
Optical nonlinear absorption of ZnO/ZnMgO multiple quantum wells at room temperature
Author :
Ou, Po-Chi ; Lin, Ja-Hon ; Hsie, Wen-Feng
Author_Institution :
Dept. of Photonics & Inst. of Electro-Opt. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
Aug. 28 2011-Sept. 1 2011
Abstract :
Wavelength- and pumping-dependent optical nonlinear absorption was investigated in ZnO/ZnMgO multiple quantum wells by using the z-scan and pump-probe methods. The nonlinear response transits from saturable absorption into two-photon absorption as excitation below excitonic state.
Keywords :
II-VI semiconductors; optical saturable absorption; semiconductor quantum wells; ultraviolet spectra; zinc compounds; Z-scan method; ZnO-ZnMgO; multiple quantum wells; pump-probe method; pumping-dependent optical nonlinear absorption; saturable absorption; temperature 293 K to 298 K; two-photon absorption; wavelength-dependent optical nonlinear absorption; Absorption; Excitons; Nonlinear optics; Optical films; Optical pumping; Ultrafast optics; Zinc oxide;
Conference_Titel :
Quantum Electronics Conference & Lasers and Electro-Optics (CLEO/IQEC/PACIFIC RIM), 2011
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4577-1939-4
DOI :
10.1109/IQEC-CLEO.2011.6193905
