一种红外双波段衍射望远镜的光学设计（英文）
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摘要
深入研究了双层谐衍射光学元件,基于衍射效率方程对双层衍射元件的衍射效率进行优化.光学系统在中波红外和长波红外波段的衍射效率均超过了99%,极大地提高了图像的对比度和像质.设计了一款新型的红外双波段衍射望远镜,取得了接近衍射极限的成像质量,易于加工.
In this paper,the double-layer harmonic diffractive element( HDE) structure is investigated and the optimization procedure is based on the equation of diffraction efficiency of the double-layer diffractive optical element. The diffraction efficiency of the system in the designed middle and far infrared wavebands is larger than99%,which improves the image contrast and the imagequality significantly. A newdual-band infrared double-layer HDE telescope is designed,which can work in the middle and far infrared wavebands. It is shown that the system approximately attains diffraction limit and is easy to processed.
In this paper,the double-layer harmonic diffractive element( HDE) structure is investigated and the optimization procedure is based on the equation of diffraction efficiency of the double-layer diffractive optical element. The diffraction efficiency of the system in the designed middle and far infrared wavebands is larger than99%,which improves the image contrast and the imagequality significantly. A newdual-band infrared double-layer HDE telescope is designed,which can work in the middle and far infrared wavebands. It is shown that the system approximately attains diffraction limit and is easy to processed.
引文
[1]Hinnrichs M. Dual band(MWIR/LWIR)hyperspectral imager,in:32nd[C],Applied Imagery Pattern Recognition Workshop,2003,3:73-78.
[2]Veldkamp W B,Mc Hugh T J. Binary optics[J]. Scientific American,1992,266:92-97.
[3]Sweeney D W,Sommargren G E. Harmonic diffractive lenses[J]. Appl Opt,1995,34:2469-2475.
[4]Faklis D,Morris G M. Spectral properties of multiorder diffractive lenses[J]. Appl Opt,1995,34:2462-2468.
[5]Arieli Y.,Ozeri S.,N. Eisenberg,Design of diffractive optical elements for multiple wavelengths[J],Opt. Lett. 1998,11:6174-6177.
[6]Chunyan,C. X. Xue,Q. F. Cui,J. B. Tong,Design of Multi-Layer Diffractive Optical Element with Bandwidth Integral Average Diffraction Efficiency[J],Acta Optica Sinica,2010,10:048.
[7]Sun Q,Lu Z W,Wang Z Q,The dual band design of harmonic diffractive/refractive optics system[J]。Acta Opt. Sin. 2004,24:830-833.
[8]Sun Q,Wang Z Q. Study of an athermal infrared dual band optical system design containing harmonic diffractive element[J]. Chin. Sci.Bull. 2003,48:1193-1198.
[9]ZHANG Liang,MAO Xin,WANG He-Long. The design of MWIR/LWIR multiple FOV optical system[J]J. Infrared Millim. Waves,(张良,毛鑫,王合龙.中波/长波双色多视场光学系统设计.红外与毫米波学报,2013,32(3):254-259.
[10]Ma H T,Zhang X H,Han Bing. Design of telescope system with a wide spectrum,large field and small distortion[J]. Infrared and Laser Engineering. 2013,7:020.
[2]Veldkamp W B,Mc Hugh T J. Binary optics[J]. Scientific American,1992,266:92-97.
[3]Sweeney D W,Sommargren G E. Harmonic diffractive lenses[J]. Appl Opt,1995,34:2469-2475.
[4]Faklis D,Morris G M. Spectral properties of multiorder diffractive lenses[J]. Appl Opt,1995,34:2462-2468.
[5]Arieli Y.,Ozeri S.,N. Eisenberg,Design of diffractive optical elements for multiple wavelengths[J],Opt. Lett. 1998,11:6174-6177.
[6]Chunyan,C. X. Xue,Q. F. Cui,J. B. Tong,Design of Multi-Layer Diffractive Optical Element with Bandwidth Integral Average Diffraction Efficiency[J],Acta Optica Sinica,2010,10:048.
[7]Sun Q,Lu Z W,Wang Z Q,The dual band design of harmonic diffractive/refractive optics system[J]。Acta Opt. Sin. 2004,24:830-833.
[8]Sun Q,Wang Z Q. Study of an athermal infrared dual band optical system design containing harmonic diffractive element[J]. Chin. Sci.Bull. 2003,48:1193-1198.
[9]ZHANG Liang,MAO Xin,WANG He-Long. The design of MWIR/LWIR multiple FOV optical system[J]J. Infrared Millim. Waves,(张良,毛鑫,王合龙.中波/长波双色多视场光学系统设计.红外与毫米波学报,2013,32(3):254-259.
[10]Ma H T,Zhang X H,Han Bing. Design of telescope system with a wide spectrum,large field and small distortion[J]. Infrared and Laser Engineering. 2013,7:020.