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Article
Open AccessA coma-free super-high resolution optical spectrometer using 44 high dispersion sub-gratings
Unlike the single grating Czerny–Turner configuration spectrometers, a super-high spectral resolution optical spectrometer with zero coma aberration is first experimentally demonstrated by using a compound int...
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Article
Open AccessStrong optical absorption of a metallic film to induce a lensing effect in the visible region
In this work, the two-dimensional profile of the light transmission through a prism-like metallic film sample of Au was measured at a wavelength of 632.8 nm in the visible intraband transition region to verify...
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Article
Open AccessUltrahigh-resolution spectrometer based on 19 integrated gratings
Optical spectrometers play a key role in acquiring rich photonic information in both scientific research and a wide variety of applications. In this work, we present a new spectrometer with an ultrahigh resolu...
