Abstract:Using plane wave spectrum methods, we analyze the propagation and mutual conversion of plane and evanescent waves generated by a one-dimensional object partially obscured by a vibrating knife edge. We show that subwavelength details of the object may be detected in each part of the transmitted plane wave spectrum, upon scanning the knife edge across the object. We discuss the implications for nearfield scanning optical microscopy (NSOM) and compare some aspects of conventional NSOM (physical aperture), and vib… Show more
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