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Polarization properties of a broadband multi-moded concentrator
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Kogut, Alan Fixsen, Dale J. Hill, Robert S. |
| Copyright Year | 2015 |
| Description | We present the design and performance of a non-imaging concentrator for use in broad-band polarimetry at millimeter through submillimeter wavelengths. A rectangular geometry preserves the input polarization state as the concentrator couples f/2 incident optics to a 2pi sr detector. Measurements of the co-polar and cross-polar beams in both the few-mode and highly over-moded limits agree with a simple model based on mode truncation. The measured co-polar beam pattern is nearly independent of frequency in both linear polarizations. The cross-polar beam pattern is dominated by a uniform term corresponding to polarization efficiency 94%. After correcting for efficiency, the remaining cross-polar response is -18 dB.|||||||| |
| File Size | 316418 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20150007943 |
| Archival Resource Key | ark:/13960/t5x68h67x |
| Language | English |
| Publisher Date | 2015-03-17 |
| Access Restriction | Open |
| Subject Keyword | Non-imaging Concentrator 2 Pi Sr Detector Broad-band Polarimetry Concentrators Broadband Millimeter Waves Cross Polarization Submillimeter Waves Frequencies Polarimetry Polarization Waves Beams Radiation Mirrors Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
