FOCUSING PROPERTIES OF A LINEAR-PHASE BRAGG-FRESNEL LENS

FOCUSING PROPERTIES OF A LINEAR-PHASE BRAGG-FRESNEL LENS

Hard X-ray focusing by a linear phase Bragg-Fresnel crystal lens was performed with an efficiency close to 30%. The phase shift of an incident beam was controlled by deviating the crystal lens from the exact Bragg condition. Analytical expressions for the intensity and the image contrast at the foca...

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Veröffentlicht in:JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 1992-08, Vol.31 (8), p.2616-2620
Hauptverfasser: ARISTOV, VV, BASOV, YA, GOUREEV, TE, SNIGIREV, AA, ISHIKAWA, T, IZUMI, K, KIKUTA, S
Format: Artikel
Sprache:eng
Schlagworte:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Lenses, prisms, and mirrors
Optical elements, devices, and systems
Optics
Physical Sciences
Physics
Physics, Applied
Science & Technology
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Zusammenfassung:Hard X-ray focusing by a linear phase Bragg-Fresnel crystal lens was performed with an efficiency close to 30%. The phase shift of an incident beam was controlled by deviating the crystal lens from the exact Bragg condition. Analytical expressions for the intensity and the image contrast at the focal point was presented.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.31.2616