%0 Journal Article
%T Propagation of linearly polarized Gaussian beam through the compound modulated diffraction grating<br>线偏振高斯光束通过复合型衍射光栅的传输特性
%A Li Jian-Long
%A <br>李建龙
%A 吕百达
%J 物理学报
%D 2008
%I 
%X A new type of diffraction grating called the compound modulated diffraction grating is proposed, which incorporates both surface relief and periodic refractive index modulation. Based on the angular spectrum representation and strict modal theory, the propagation of linearly polarized Gaussian beam through the compound-modulated diffraction grating whose characteristic size is comparable with the wavelength is studied. It is shown that the propagation of beam in each layer is different and the intensity fluctuation frequency in the compound-modulated grating is smaller than that in the conventional relief grating at the same transmission depth. Using the compound modulated grating model, the influence of surface fluctuation of the sub-wavelength-volume phase holographic grating and waist width of the incident beam on the diffraction efficiency is analyzed.
%K compound modulated diffraction grating
%K sub-wavelength-volume phase holographic grating
%K Gaussian beam
%K strict modal theory<br>复合型衍射光栅，
%K 亚波长体积相位全息光栅，
%K 高斯光束，
%K 严格模式理论
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=9CEB933107F27B6039C34334A3804A46&yid=67289AFF6305E306&vid=11B4E5CC8CDD3201&iid=38B194292C032A66&sid=4F4D699E68EBCB79&eid=00B387A522283F93&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=13