Open AccessDesign High performance multilayers cold mirror
Author(s) -
Ansam Qassim Gadhban,
Harakat Mohsin Roomy,
Sarah K. Taha
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1879/3/032086
Subject(s) - dielectric , refractive index , optics , materials science , reflection (computer programming) , high refractive index polymer , infrared , wavelength , transmission (telecommunications) , optoelectronics , visible spectrum , interference (communication) , nanometre , physics , telecommunications , computer science , channel (broadcasting) , programming language
The optical design process includes a myriad of tasks that the designer must be performed and consider in the process of optimizing the performance of the optical system. In this article, a design based on four groups of materials for a multilayer dielectric cold mirror: V 2 O 5 \MgF 2 , Sic\MgF 2 , TiO 2 \MgF 2 , and Al As\MgF 2 where MgF 2 represents low refractive index and other material in each group represent high refractive index. A cold mirrors are a special dielectric mirrors that reflects the entire visible wavelength band, while the transmitting infrared wavelength band. These systems of mirrors are constructed for an event angle from 0° to 45° and are modeled with interference filters-like multi thin layer dielectric coatings. The results of our work designed shows the mirror based on Al As/MgF2 is the most promising design for cold mirror with the highest reflection in the visible region and the highest Transition in the IR region. In the spectrum range of 400-800 nanometers, the average transmission is much less than 1 %, while the average transmission is 95 percent in the wave band 800-2500 nanometer.