Broadband Variable Transmission Sphere for Fizeau Interferometry
نویسندگان
چکیده
Transmission spheres used in interferometry are specified by f-number and source wavelength. In this paper, we explore a broadband variable transmission sphere (BVTS) system based on freeform Alvarez lenses that enables operation across broad range of f-numbers wavelengths. Potential applications performance tradeoffs discussed comparison to conventional spherical spheres. Simulation results presented for f/15 f/80 configurations from visible long-wave infrared sources Fizeau interferometer. highlight spherical, coma, astigmatism impose limits surface measurement quality.
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ژورنال
عنوان ژورنال: Optics
سال: 2022
ISSN: ['2328-7810', '2328-7780']
DOI: https://doi.org/10.3390/opt3010011