Murphy, J.Anthony and Withington, Stafford and Egan, A. (1993) Mode conversion at diffracting apertures in millimeter and submillimeter wave optical systems. IEEE Transactions on Microwave Theory and Techniques, 41 (10). pp. 1700-1702. ISSN 0018-9480

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Abstract

Diffraction effects, which occur when the fields in a beam waveguide are truncated at absorbing stops, can be conveniently analyzed using scattering-matrix theory applied to Gaussian-beam modes. The authors present recursion relationships for the elements of the scattering matrix when a nonaxially symmetric beam illuminates an axially symmetric stop. They demonstrate the technique by calculating the total loss and beam profiles in a system comprising a diagonal horn, a lens, a window, and two off-axis mirrors. The finite size of each component is taken into account.

Item Type:	Article
Additional Information:	Cite as: J. A. Murphy, S. Withington and A. Egan, "Mode conversion at diffracting apertures in millimeter and submillimeter wave optical systems," in IEEE Transactions on Microwave Theory and Techniques, vol. 41, no. 10, pp. 1700-1702, Oct. 1993, doi: 10.1109/22.247913.
Keywords:	Optical diffraction; Apertures; Submillimeter wave devices; Optical scattering; Optical waveguides; Gaussian processes; Symmetric matrices; Transmission line matrix methods; Lenses; Mirrors;
Academic Unit:	Faculty of Science and Engineering > Experimental Physics
Item ID:	14280
Identification Number:	https://doi.org/10.1109/22.247913
Depositing User:	Dr. Anthony Murphy
Date Deposited:	29 Mar 2021 15:16
Journal or Publication Title:	IEEE Transactions on Microwave Theory and Techniques
Publisher:	IEEE
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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