Guiding hard X-rays by means of a periodic multilayer waveguide with an air clearance: a numerical study

Autor:	I. R. Prudnikov
Rok vydání:	2007
Předmět:	Standing wave Materials science Optics business.industry Guided-mode resonance Hard X-rays Physics::Optics Numerical modeling Air gap (plumbing) business Reflectivity General Biochemistry Genetics and Molecular Biology Excitation
Zdroj:	Journal of Applied Crystallography. 40:427-435
ISSN:	0021-8898
DOI:	10.1107/s0021889807012253
Popis:	A periodic multilayer waveguide for X-rays with an air gap serving as a guiding layer is considered. The propagation of hard X-ray guided modes through such a waveguide has been investigated with the help of numerical modeling. The propagation lengths of the guided modes are analyzed thoroughly with respect to their dependence on the reflectivity of the periodic multilayers forming the waveguide. It is shown that the guided modes can be generated even in a waveguide composed of low-reflectivity multilayers. The influence of a standing wave inside the reflecting multilayers on the transmission of the guided waves by the waveguide is demonstrated. Conditions which are favorable for the excitation of the guided modes are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::632639ed3557a2ccb6a788705150b5ac https://doi.org/10.1107/s0021889807012253 Zobrazit plný text záznamu Plný text ve formátu PDF