
Proceedings Paper
Rigorous electromagnetic analysis of metallic cylindrical focusing micromirrors designed by a modified focal-length functionFormat | Member Price | Non-Member Price |
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Paper Abstract
Through exploiting a modified focal-length function, two-dimensional metallic cylindrical focusing micromirrors
(MCFMs) with different preset focal depths are designed. Rigorous electromagnetic theory and the boundary element
method are applied to analyzing the focal characteristics, including the actual focal depth, the relative focal depth, the
focal spot size and the diffraction efficiency. Through setting the preset focal depth to be positive or negative, numerical
results reveal that the designed MCFMs can successfully modulate the optical field distribution to achieve a long axial
focal depth or increased lateral resolution, respectively. In addition, due to the inherent achromatic aberration property of
the metallic reflective system, the common long-focal-depth region of the designed MCFM under multiwavelength
illumination is greatly enlarged, in comparison with a dielectrically cylindrical microlens. It is expected that the designed
MCFMs should have many practical applications in micro optics systems.
Paper Details
Date Published: 15 November 2011
PDF: 6 pages
Proc. SPIE 8321, Seventh International Symposium on Precision Engineering Measurements and Instrumentation, 83210U (15 November 2011); doi: 10.1117/12.903890
Published in SPIE Proceedings Vol. 8321:
Seventh International Symposium on Precision Engineering Measurements and Instrumentation
Kuang-Chao Fan; Man Song; Rong-Sheng Lu, Editor(s)
PDF: 6 pages
Proc. SPIE 8321, Seventh International Symposium on Precision Engineering Measurements and Instrumentation, 83210U (15 November 2011); doi: 10.1117/12.903890
Show Author Affiliations
Yan Zhang, Capital Normal Univ. (China)
Published in SPIE Proceedings Vol. 8321:
Seventh International Symposium on Precision Engineering Measurements and Instrumentation
Kuang-Chao Fan; Man Song; Rong-Sheng Lu, Editor(s)
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