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    Representation of mirrors in beam waveguides as inclined phase-transforming surfaces


    Withington, Stafford and Murphy, J.Anthony and Isaak, K.G. (1995) Representation of mirrors in beam waveguides as inclined phase-transforming surfaces. Infrared Physics & Technology, 36 (3). pp. 723-734. ISSN 1350-4495

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    Abstract

    We have developed an approximate technique, based on the principles of multi-mode Gaussian optics, for studying the behaviour of shaped off-axis mirrors. We describe a mirror as an inclined phase-transforming plane, where the phase transformation across the plane is determined by the depth of the mirror as a function of position. The scattering matrix is calculated in the usual way by evaluating the overlap integrals over some surface for which the amplitudes and phases of the incoming and outgoing fields are known; because, however, the modes are not orthogonal over the surface of interest, a system of linear equations has to be solved. We demonstrate the “thin-mirror” technique by studying the behaviour of paraboloidal and ellipsoidal mirros, and we show how the performance of measured and approximate surfaces can be assessed.

    Item Type: Article
    Additional Information: Cite as: S. Withington, J.A. Murphy, K.G. Isaak, Representation of mirros in beam waveguides as inclined phase-transforming surfaces, Infrared Physics & Technology, Volume 36, Issue 3, 1995, Pages 723-734, ISSN 1350-4495, https://doi.org/10.1016/1350-4495(94)00047-O.
    Keywords: shaped off-axis mirrors; beam waveguides; inclined phase-transforming surfaces; multi-mode Gaussian optics;
    Academic Unit: Faculty of Science and Engineering > Experimental Physics
    Item ID: 14303
    Identification Number: https://doi.org/10.1016/1350-4495(94)00047-O
    Depositing User: Dr. Anthony Murphy
    Date Deposited: 01 Apr 2021 15:39
    Journal or Publication Title: Infrared Physics & Technology
    Publisher: Elsevier
    Refereed: Yes
    URI:

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