Abstract
At the presented work, we report the results of research of optical properties PbTe, ZnSe, ZnS, BaF2 and PbF2 thin fllms in a wide infrared spectral range. These materials are used for manufacturing thin fllm multilayer interference systems working in the mid-infrared and probably be applied in far infrared to submillimeter. Optical properties in our understand- ing are spectral dependences of refractive index and extinction coe-cient of layers. Films with thicknesses 3{7 microns were received by thermal vacuum deposition on single-crystal silicon sub- strates. Refractive index and extinction coe-cient dispersion in 1.5{150 microns spectral range (2{200THz) were determined by method based on analysis of the transmission and re∞ection interference spectra. Films of PbTe under consideration do not possess appreciable absorption bands in the investigated spectral range. While, other investigated fllms have intensive absorp- tion bands in the 25{100 microns region. With using of the investigated materials the \solar blind fllter for 1.0{50 microns spectral range on the single-crystal silicon substrate was designed and made.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
