%0 Journal Article
%T Intersubband Transition Optical Absorption of Semiconductor Supperlattice<br>半导体超晶格子带间跃迁光吸收理论研究
%A 李文兵
%A 赵国忠
%A 王福合
%A 周云松
%J 光子学报
%D 2006
%I 
%X The absorption induced by intersubband transition in semiconductor superlattice was studied.Numerical illustrations of the optical absorption in a GaAs/Al_xGa_ 1-x As superlattice were given.The optical absorption coefficient as a function of the incident optical frequency, the optical intensity, the temperature and the structure parameters of superlattices (The width of quantum well,the barrier width and the composition percent of Al) were obtained. The simulation results showed that the absorption spectra of superlttice appeared as asymmetric absorption band.The optical intensity only changed the magnitude of absorption coefficient.The structure parameters of superlattice could change the width of absorption spectra and the resonant photon energy.The wider the well or barrier were,the narrower the absorption band became the smaller the center absorption band, the bigger was the absorption coefficients,and the absorption peak red shifted.The absorption band became narrow and the absorption coefficients increased when the composition percent of Al increased.
%K Nonlinear optics
%K Intersubband absorption
%K Kronig-penney model
%K Superlattice<br>非线性光学
%K 子带间吸收
%K Kronig-Penney模型
%K 超晶格
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=B005622DF4B3A724&yid=37904DC365DD7266&vid=6209D9E8050195F5&iid=CA4FD0336C81A37A&sid=1D0FA33DA02ABACD&eid=0401E2DB1F51F8DE&journal_id=1004-4213&journal_name=光子学报&referenced_num=8&reference_num=16