Optical near-field in subwavelength air-dielectric structure is studied by a collection-mode near-field optical microscopy. Concentrated optical near-field and large polarization anisotropy at the dielectric regions are measured. From the simulation of finite-difference time-domain method, we conclude the edge diffraction dominating the optical near-field distribution.
Edge diffraction induced near-field contrast in subwavelength structure
2003-01-01
81184 byte
Conference paper
Electronic Resource
English
Edge diffraction induced near-field contrast in subwavelength structures
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