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Design of Infrared Inverted Telephoto-Optical System with Double-Layer Harmonic Diffractive Element |
| FAN Chang-Jiang1;WANG Zhao-Qi1;LIN Lie1;ZHANG Mei1;FAN Hai-Ying1 |
| Institute of Modern Optics, Nankai University, Tianjin 300071 |
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| Cite this article: |
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FAN Chang-Jiang, WANG Zhao-Qi, LIN Lie et al 2007 Chin. Phys. Lett. 24 1973-1976 |
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Abstract A double-layer harmonic diffractive element (HDE) structure is investigated and the optimization procedure is given based on the equation of diffraction efficiency of the double-layer diffractive optical element. A new infrared double-layer inverted telephoto-optical system with an HDE is designed, which can work in the mid- and far-infrared wavebands. The diffraction efficiency of the system at each wavelength in the designed two wavebands is larger than 90%, which improves the image contrast and the imaging quality significantly.
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| Keywords:
42.82.Bq
42.30.Lr
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Received: 24 January 2007
Published: 25 June 2007
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| PACS: |
42.82.Bq
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(Design and performance testing of integrated-optical systems)
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42.30.Lr
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(Modulation and optical transfer functions)
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[5] Yoel A, Shmuel O and Naftali E 1998 Opt. Lett. 11 823
[6] Dean F G and Michael M 1995 Opt. Lett. 23 823
[7] Thoms H J 1984 Opt. Eng. 23 111 |
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