Lens or resonator? Electromagnetic behavior of an extended hemielliptic lens for a sub-millimeter-wave receiver

The behavior of a 2D model of an extended hemielliptic silicon lens of a size typical for THz applications is accurately studied for the case of a plane E‐wave illumination. The full‐wave analysis of the scattering problem is based on the Muller's boundary integral‐equations (MBIE) that are uni...

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Bibliographic Details
Published in:Microwave and optical technology letters 2004-12, Vol.43 (6), p.515-518
Main Authors: Boriskin, Artem V., Nosich, Alexander I., Boriskina, Svetlana V., Benson, Trevor M., Sewell, Phillip, Altintas, Ayhan
Format: Article
Language:English
Subjects:
boundary integral equations
dielectric lens
focusability
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Summary:The behavior of a 2D model of an extended hemielliptic silicon lens of a size typical for THz applications is accurately studied for the case of a plane E‐wave illumination. The full‐wave analysis of the scattering problem is based on the Muller's boundary integral‐equations (MBIE) that are uniquely solvable. A Galerkin discretization scheme with a trigonometric basis leads to a very efficient numerical algorithm. The numerical results related to the focusability of the lens versus its rear‐side extension and the angle of the plane‐wave incidence, as well as near‐field profiles, demonstrate strong resonances. Such effects can change the principles of optimal design of lens‐based receivers. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 43: 515–518, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20520
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.20520