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13 June 2005 The focusing action of refractive microlens by rigorous method
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We investigate the focusing action of refractive microlens based on the rigorous electromagnetic theory by boundary element method. We numerically simulate total electric-field patterns, the electric-field intensity distributions on the focal plane, and their diffractive efficiencies at the focal spots for describing the focusing behaviours of these microlenses with continuous and multilevel surface-envelopes. Focusing action of incident beam with a certain angle of inclination is indagated as well. The present numerical and graphical results may provide an useful information for the analysis and the design of refractive elements in micro-optics.
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Juan Liu, Ben-Yuan Gu D.V.M., Bi-Zhen Dong, and Guo-Zhen Yang "The focusing action of refractive microlens by rigorous method", Proc. SPIE 5856, Optical Measurement Systems for Industrial Inspection IV, (13 June 2005);

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