All-optical volumetric imaging via spectral sweep by means of a transmissive bragg grating featuring a radially dependent plane of diffraction
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United States of America
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Jan 28, 2025
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Nov 28, 2024
app pub date -
May 28, 2024
filing date -
May 28, 2024
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Abstract
An imaging element may include volume Bragg grating (VBG) within a material, where the material has an input face, and where the VBG is formed as a periodic distribution of curved surfaces of refractive index variation with chirped periodicity in a volume of the material. The periodic distribution of curved surfaces of refractive index variation forming the VBG may be selected to image different object planes oriented parallel to the input face onto different lateral locations of a single image plane with different wavelengths via the Bragg diffraction.
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