Abstract
Near-field lattice spectroscopy has shown that the structure information for a lattice or periodic pattern can be obtained by measuring the diffracted spectrum of a broad-band light source at one spatial position. This technique is verified experimentally using a transmitting grating, supercontinuum white light laser, and a reflective concave mirror. The calculated grating’s period from the detected lattice spectroscopy is close to the measured period with an optical microscope, which demonstrates the validity and feasibility of this scheme.
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