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Multilayer thin film design for far ultraviolet polarizers using an induced transmission and absorption technique
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Zukic, Muamer Kim, Jongmin Torr, Douglas G. |
| Copyright Year | 1993 |
| Description | An explanation of induced transmission for spectral regions excluding the far ultraviolet (FUV) is given to better understand how induced transmission and absorption can be used to design effective polarizers in the FUV spectral region. We achieve high s-polarization reflectance and a high degree of polarization (P equals (Rs-Rp)/(Rs+Rp)) by means of a MgF2/Al/MgF2 three layer structure on an opaque thick film of Al as the substrate. For example, our polarizer designed for the Lyman-alpha line (lambda equals 121.6 nm) has 87.95 percent reflectance for the s-polarization case and 0.43 percent for the p-polarization case, with a degree of polarization of 99.03 percent. If a double reflection polarizer is made with this design, it will have a degree of polarization of 99.99 percent and s-polarization throughput of 77.35 percent. |
| File Size | 661761 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940011396 |
| Archival Resource Key | ark:/13960/t0rr6rt48 |
| Language | English |
| Publisher Date | 1993-01-01 |
| Access Restriction | Open |
| Subject Keyword | Optics P Waves Lyman Alpha Radiation Aluminum Electromagnetic Absorption Magnesium Fluorides Sandwich Structures Transmittance Thin Films Filters Polarizers Far Ultraviolet Radiation S Waves Polarization Waves Reflectance Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
