Results 1 to 10 of about 33,092 (168)

Highly Transparent Phase Change Smart Windows Enabled by Refractive-Index-Matched n-Octadecane@SiO2 Microcapsule Composites [PDF]

open access: yesNanomaterials
The development of phase change materials (PCMs) for window applications with both high optical transparency and effective temperature regulation is crucial for passive energy saving.
Fusen Yang   +4 more
doaj   +2 more sources

Study on low-cost near-infrared smart window on general glass by simple method

open access: yesResults in Optics, 2022
Based on the fast transition characteristics of vanadium oxides (VO2) optical transmittance at different temperatures, the low-cost smart window has been fabricated successfully on general glass by chemical vapor deposition (CVD), magnetron sputtering ...
You Wang   +3 more
doaj   +1 more source

High‐Transmittance and High‐Haze Composite Particle‐Free Optical Diffusers Enabled by Polymerization‐Induced Phase Separation

open access: yesAdvanced Photonics Research, 2021
Optical diffusers with combined high transmittance and high haze are desired for the light management of various optoelectronic devices. However, the fabrication of such optical diffusers is still a grand challenge, limiting the wide application of ...
Guanwei Liang   +6 more
doaj   +1 more source

High-Performance Asymmetric Optical Transmission Based on a Dielectric–Metal Metasurface

open access: yesNanomaterials, 2021
Asymmetric optical transmission plays a key role in many optical systems. In this work, we propose and numerically demonstrate a dielectric–metal metasurface that can achieve high-performance asymmetric transmission for linearly polarized light in the ...
Wenbing Liu   +5 more
doaj   +1 more source

Computer Modelling Technologies of Optical System of Polarizing Thermal Imager

open access: yesVìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2020
The energetic resolution is a main parameter of any thermal imager depending on the transmittance of its optical system. The optical system of a polarizing thermal imager (PTI) consists of a polarizer, a phase shifter and a lens arranged in series on ...
V. H. Kolobrodov
doaj   +1 more source

Study the effect of alpha irradiation on the optical properties of pure and doped tin dioxide thin films prepared by spin coating

open access: yesTikrit Journal of Pure Science, 2023
Chemical spin coating is used to prepare pure and indium doped thin films of tin dioxide. All pure and doped thin films have been annealed at a temperature of 500oC.
Aliaa H. Ali   +2 more
doaj   +1 more source

Differences in the optical properties of photochromic lenses between cold and warm temperatures.

open access: yesPLoS ONE, 2020
The aim of our study was to quantitatively evaluate the optical properties of photochromic lenses available on the market under cold and warm temperatures corresponding to the winter and summer seasons.
Byeong-Yeon Moon   +2 more
doaj   +1 more source

A spectral method for retrieving cloud optical thickness and effective radius from surface-based transmittance measurements [PDF]

open access: yesAtmospheric Chemistry and Physics, 2011
We introduce a new spectral method for the retrieval of optical thickness and effective radius from cloud transmittance that relies on the spectral slope of the normalized transmittance between 1565 nm and 1634 nm, and on cloud transmittance at a visible
P. J. McBride   +4 more
doaj   +1 more source

Transmitter and receiver technologies for optical wireless [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2020
Providing a reliable link, with sufficient signal-to-noise ratio (SNR) and bandwidth to deliver high-capacity communications is a critical challenge for optical wireless (OW) communications and understanding and jointly optimizing the performance of the transmitter and receiver subsystems is a key part of this.
O'Brien, D, Rajbhandari, S, Chun, H
openaire   +2 more sources

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