Mean Number and Number Variance of Squeezed Coherent Photons In a Thermal State of Photons
ISSN: 1829-1171
Submitted: 2026-07-17
Natural Sciences, Physics, 2026
Multilayer Anisotropic Thin Film with a Twist
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Submitted: 2026-07-17
© 2026 by author(s) and The Gufo Inc.
This work is licensed under Creative Commons Attribution–NonCommercial International License
(CC BY-NC 4.0).
Abstract
We describe a birefringent thin film as a waveplate for polarization conversion, a system of birefringent thin films for photonics bandgaps and achromatization of functionality, birefringent thin film with a twist and multilayer CDW coatings. A theory of a broadband thin-film polarizing beam splitter based on an anisotropic cycloidal diffraction grating is proposed. The achromatization of the grating is provided by creating two-layer chiral structures with an opposite twist sense. Such a system has almost 100% efficiency. The calculations were carried out by the Jones matrix method. The resulting efficiency and bandwidth are higher than the previously known results.