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	Optimal design of an achromatic angle-insensitive phase retarder used in MWIR imaging polarimetry
	Kang Guo-Guo ; Tan Qiao-Feng ; Jin Guo-Fan
	2010-10-12 ; 2010-10-12
关键词	Experimental/ diffraction gratings infrared imaging lighting polarimetry/ middle wave infrared imaging polarimetry MWIR imaging polarimetry angle-insensitive phase retarder optimal design dielectric gratings incident angle illumination wave zero-order achromatic retarder polarization state analyzer/ A0762 Detection of radiation (bolometers, photoelectric cells, i.r. and submillimetre waves detection) A0760F Optical polarimetry and ellipsometry A4280F Gratings, echelles B7230G Image sensors
中文摘要	Dielectric gratings with period in the range from lambda /10 to lambda /4 with lambda being the illumination wavelength not only exclude higher order diffractions but also exhibit strong dispersion of effective indices which are proportional to the wavelength. Moreover, they are insensitive to the incident angle of the illumination wave. With these features, we can design a true zero-order achromatic and angle-insensitive phase retarder which can be used as the polarization state analyzer in middle wave infrared (MWIR) imaging polarimetry. A design method using effective medium theory is described, and the performance of the designed phase retarder is evaluated by rigorous coupled wave analysis theory. The calculation results demonstrate that the retardance deviates from 45 degrees by < +/-1.6 degrees within a field of view +/-10 degrees over the MWIR bandwidth (3-5 mu m).
语种	英语
出版者	Chinese Physical Society ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80346]
专题	清华大学
推荐引用方式 GB/T 7714	Kang Guo-Guo,Tan Qiao-Feng,Jin Guo-Fan. Optimal design of an achromatic angle-insensitive phase retarder used in MWIR imaging polarimetry[J],2010, 2010.
APA	Kang Guo-Guo,Tan Qiao-Feng,&Jin Guo-Fan.(2010).Optimal design of an achromatic angle-insensitive phase retarder used in MWIR imaging polarimetry..
MLA	Kang Guo-Guo,et al."Optimal design of an achromatic angle-insensitive phase retarder used in MWIR imaging polarimetry".(2010).

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