Diffractive elements for a free electron laser

Diffractive elements for a free electron laser

The limits of applicability of geometrical optical methods of calculating diffractive optical elements for terahertz radiation are determined. Use of the method of hot pressing in vacuum chambers to produce polymer transmissive diffractive elements for controlling terahertz radiation is considered....

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Veröffentlicht in:Optoelectronics, instrumentation, and data processing instrumentation, and data processing, 2010-08, Vol.46 (4), p.365-375
Hauptverfasser: Vedernikov, V. M., Dutov, P. M., Kokarev, A. I., Kir’yanov, V. P., Knyazev, B. A., Nikitin, V. G., Pal’chikova, I. G., Sametov, A. R., Stupak, M. F., Chugui, Y. V., Chukanov, V. V.
Format: Artikel
Sprache:eng
Schlagworte:
Lasers
Optical Devices
Optical Information Technologies
Optics
Photonics
Physics
Physics and Astronomy
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Zusammenfassung:The limits of applicability of geometrical optical methods of calculating diffractive optical elements for terahertz radiation are determined. Use of the method of hot pressing in vacuum chambers to produce polymer transmissive diffractive elements for controlling terahertz radiation is considered. The effect of radiation absorption on the focal spot size and the radiation resistance of the elements are estimated. Experimental study of the optical characteristics of diffraction lenses fabricated in polypropylene revealed 17 percent differences from the diffraction limit.
ISSN:8756-6990
1934-7944
DOI:10.3103/S8756699010040102