Abstract
A Bragg reflector composed of periodic cylindrically symmetric corrugations can provide a reflection of nearly unity through the principles of constructive interference, allowing the creation of a frequency selective resonator. Measurements of reflectivity for both rectangular and sinusoidal corrugations are presented.
Original language | English (US) |
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Article number | 15142E |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 1514 |
DOIs | |
State | Published - 1990 |
Externally published | Yes |
Event | 15th International Conference on Infrared and Millimeter Waves 1990 - Orlando, United States Duration: Dec 10 1990 → Dec 14 1990 |
Funding
For the UCLA 400 kV CARM experiment, tapered Bragg reflectors with high mode purity have been designed using Hamming Window filter theory and are being fabricated. The Bragg reflector next to the electron gun will give 99 percent reflection and the output Bragg will reflect 96 percent. Each yields less than 0.2 percent mode conversion to TM1I This Work was supported by ONR /NRL under contract N00014 -87 -K -2032, AFOSR under Grant 89- 0005, ARO under Contract DAAL03 -87 -K -0139 and Rome Air Development Center(ATRI) under Contract F30602-87-C0201.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering