Journal of Infrared and Millimeter Waves, Volume. 43, Issue 3, 406(2024)

Design and fabrication of an ultra-broadband dichroic beam-splitter with low polarization

Tian-Yan YU1,2, Yang QIN1,2, Lin JIANG1,2, Wei-Bo DUAN1,2、*, and Ding-Quan LIU1,2
Author Affiliations
  • 1Shanghai Key Laboratory of Optical Coatings and Spectral Modulation,Shanghai 200083,China
  • 2Shanghai Institute of Technical Physics ,Chinese Academy of Sciences,Shanghai 200083,China
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    This paper describes the design and fabrication of one kind of dichroic beam-splitter that operates in an ultra-broadband spectral range from visible to longwave infrared regions simultaneously. The use of metal-dielectric coatings makes it implement structures that transmit the visible/near infrared radiation from 0.4 to 1.05 μm and reflect infrared radiation from 1.36 to 13 μm. At the same time, the structures are designed to obtain a low linear polarization sensitivity (LPS) in the visible/near infrared region. The transmission of visible/near infrared region is more than 85% and the average reflection of infrared region is more than 90%. The LPS of the region 0.4-1.05 μm is less than 4%.

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    Tian-Yan YU, Yang QIN, Lin JIANG, Wei-Bo DUAN, Ding-Quan LIU. Design and fabrication of an ultra-broadband dichroic beam-splitter with low polarization[J]. Journal of Infrared and Millimeter Waves, 2024, 43(3): 406

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    Paper Information

    Category: Research Articles

    Received: Dec. 20, 2023

    Accepted: --

    Published Online: Apr. 29, 2024

    The Author Email: Wei-Bo DUAN (duanweibo@mail.sitp.ac.cn)

    DOI:10.11972/j.issn.1001-9014.2024.03.015

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