Rigorous electromagnetic analysis of metallic cylindrical focusing micromirrors with high diffraction efficiency, achromatic aberration and long focal depth

In this paper, we propose a kind of metallic cylindrical focusing micromirrors (MCFMs) with parabolic profiles, and the focal performance is investigated based on rigorous electromagnetic theory and the boundary element method (BEM). Numerical results by the BEM show that the proposed MCFM possesses...

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Bibliographic Details
Published in:Optics communications 2010-05, Vol.283 (9), p.1661-1667
Main Authors: Ye, Jia-Sheng, Zhang, Yan
Format: Article
Language:English
Subjects:
Aberration
Aberrations
Applied sciences
Boundary element method
Concentrators
Diffraction efficiency
Energy
Exact sciences and technology
Focusing
Fundamental areas of phenomenology (including applications)
Geometrical optics
Long focal depth
Mathematical analysis
Mathematical models
Metallic cylindrical focusing micromirrors
Natural energy
Optics
Photovoltaic conversion
Physics
Rigorous electromagnetic analysis
Solar cells. Photoelectrochemical cells
Solar collectors
Solar energy
Solar thermal conversion
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Summary:In this paper, we propose a kind of metallic cylindrical focusing micromirrors (MCFMs) with parabolic profiles, and the focal performance is investigated based on rigorous electromagnetic theory and the boundary element method (BEM). Numerical results by the BEM show that the proposed MCFM possesses a high diffraction efficiency and axially achromatic aberration. In addition, through designing a modulating phase function, the MCFM holds long focal depth and high transverse resolution simultaneously. It is believed that the MCFM should have wide application prospects in micro-optical systems, such as micro solar concentrators.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2009.12.035