全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
物理学报  2008 

Propagation of linearly polarized Gaussian beam through the compound modulated diffraction grating
线偏振高斯光束通过复合型衍射光栅的传输特性

Keywords: compound modulated diffraction grating,sub-wavelength-volume phase holographic grating,Gaussian beam,strict modal theory
复合型衍射光栅,
,亚波长体积相位全息光栅,,高斯光束,,严格模式理论

Full-Text   Cite this paper   Add to My Lib

Abstract:

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.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133