%0 Journal Article
%T Effects of Coupling Lens on Optical Refrigeration of Semiconductors<br>
%A DING Kai
%A ZENG Yi-Ping
%A <br>
%J 中国物理快报
%D 2008
%I 
%X Optical refrigeration of semiconductors is encountering efficiency difficulties caused by nonradiative recombination and luminescence trapping. A commonly used approach for enhancing luminescence efficiency of a semiconductor device is coupling a lens with the device. We quantitatively study the effects of a coupling lens on optical refrigeration based on rate equations and photon recycling, and calculated cooling efficiencies of different coupling mechanisms and of different lens materials. A GaAs/GaInP heterostructure coupled with a homo-epitaxial GaInP hemispherical lens is recommended.
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%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=DCB0F05D72A2B9DD449B6A6B9FD5E5CE&yid=67289AFF6305E306&vid=C5154311167311FE&iid=94C357A881DFC066&sid=AF251ABCE889FAF8&eid=3907BD093A0059AA&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0