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Fresnel diffraction at an opaque strip expressed by means of asymptotic representations of Fresnel integrals
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SYSNO ASEP 0387488 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Fresnel diffraction at an opaque strip expressed by means of asymptotic representations of Fresnel integrals Author(s) Šmíd, Petr (FZU-D) RID, ORCID
Horváth, P. (CZ)Source Title Journal of the Optical Society of America A, Optics, Image Science and Vision. - : Optical Society of America - ISSN 1084-7529
Roč. 29, č. 6 (2012), s. 1071-1077Number of pages 7 s. Language eng - English Country US - United States Keywords Fresnel integrals ; Fresnel diffraction Subject RIV BH - Optics, Masers, Lasers R&D Projects 1M06002 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) KAN301370701 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z10100522 - FZU-D (2005-2011) UT WOS 000305089100028 DOI 10.1364/JOSAA.29.001071 Annotation The paper presents an asymptotic expression of relative intensity distribution in a Fresnel diffraction pattern at an opaque straight strip illuminated with a spherical wave. The asymptotic expression is used in an analysis showing an area of validity where the asymptotic expression reduces to an asymptotic expression of relative intensity distribution in a Fresnel diffraction at a half plane. The area of validity is defined through width of the geometrical shadow in a Fresnel diffraction pattern at an opaque straight strip and distance of a point under study to the center of the Fresnel diffraction pattern. Within this area, relative intensity in the Fresnel diffraction pattern at an opaque straight strip shows sinusoidal behavior, which can be used in easy location of maxima or minima of the relative intensity. The result of the analysis is supported by experiments realized in the area of validity and outside it. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2013
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