Abstract
We explore the possibility of utilizing mid-field Talbot effect under non-paraxial diffraction for building compact spectrometers. Our experiment demonstrates nanometer resolution with a bandwidth over at least 100 nm for a Talbot spectrometer built using a standard 1-D transmission grating and a commercial CMOS imager. The effect of angular spread at the grating surface on spectral resolution is also investigated theoretically.
© 2016 Optical Society of America
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