FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W937985267> ?p ?o ?g. }

• W937985267 abstract "The exploitation of the soft x-ray/extreme ultra-violet (EUV) region of the electromagnetic spectrum is possible mainly due to the development of multilayer (ML) mirrors. This region of the electromagnetic spectrum offers great opportunities in both science and technology. The shorter wavelength allows one to see smaller features in microscopy and write finer features in lithography. High reflectivity with moderate spectral bandwidth at normal/near-normal incidence can be achieved in soft x-ray/ EUV spectral range using these ML mirrors, where natural crystals with the required large periodicity are not available. These MLs are generally artificial Bragg’s reflectors, which consist of alternative high and low density materials with periodicity in the nanometer range. The main advantages of ML optics stem from the tunability of layer thickness, composition, lateral gradient, and the gradient along the normal to the substrate; these can be tailored according to the desired wavelength regime. They have the great advantage of being adaptable to figured surfaces, enabling their use as reflective optics in these spectral regions, for focusing and imaging applications. Broadband reflectivity and wavelength tunability are also possible by using MLs with normal and lateral gradient, respectively. However, fabrication of these ML mirrors requires the capability to deposit uniform, ultra-thin (a few angstroms-thick) films of different materials with thickness control on the atomic scale. Thus, one requires a proper understanding of substrate surfaces, individual layers, chemical reactivity at interfaces and, finally, of the ML structures required for particular applications. The performance of these MLs is limited by (the lack of) contrast in optical constants of the two materials, interfacial roughness, the chemical reactivity of two materials and, finally, errors in the thickness of individual layers. Soft x-ray/extreme ultra-violet ML mirrors have found a wide range of applications in synchrotron radiation beam lines, materials science, astronomy, x-ray microscopy, x-ray laser, x-ray lithography, polarizers, and plasma diagnostics. The Indus–1 synchrotron radiation (SR) source is an operational 450 MeV machine, which produces radiation up to soft x-rays. Indus-2 is a 2.5 GeV machine, which has been commissioned recently to produce hard x-rays (E > 25 keV). The combination of Indus-1 and Indus-2 will cover a broad energy spectrum from IR to hard x-rays. Therefore, there is a significant need and opportunity to study MLs of different pairs of materials, with different parameters such as periodicity and optimum thickness of individual layers. The goal of the present thesis is to fabricate MLs for soft x-ray optics and to study their physics for application as polarizers in the wavelength range from 67 A to 160 A on the Indus-1 synchrotron source. To accomplish this task, a UHV electron beam evaporation system has been developed indigenously for the fabrication of MLs. Three different ML systems viz., Mo/Si, Fe/B4C and Mo/Y…" @default.
• W937985267 created "2016-06-24" @default.
• W937985267 creator A5063091310 @default.
• W937985267 date "2007-08-01" @default.
• W937985267 modified "2023-09-23" @default.
• W937985267 title "Soft X-ray Multilayers As Polarizing Elements : Fabrication, And Studies Of Surfaces And Interfaces" @default.
• W937985267 hasPublicationYear "2007" @default.
• W937985267 type Work @default.
• W937985267 sameAs 937985267 @default.
• W937985267 citedByCount "0" @default.
• W937985267 crossrefType "journal-article" @default.
• W937985267 hasAuthorship W937985267A5063091310 @default.
• W937985267 hasConcept C111368507 @default.
• W937985267 hasConcept C120665830 @default.
• W937985267 hasConcept C121332964 @default.
• W937985267 hasConcept C127313418 @default.
• W937985267 hasConcept C136525101 @default.
• W937985267 hasConcept C142724271 @default.
• W937985267 hasConcept C162996421 @default.
• W937985267 hasConcept C192562407 @default.
• W937985267 hasConcept C204223013 @default.
• W937985267 hasConcept C204787440 @default.
• W937985267 hasConcept C207114421 @default.
• W937985267 hasConcept C2777289219 @default.
• W937985267 hasConcept C2779328170 @default.
• W937985267 hasConcept C35655370 @default.
• W937985267 hasConcept C39693636 @default.
• W937985267 hasConcept C49040817 @default.
• W937985267 hasConcept C509933004 @default.
• W937985267 hasConcept C6260449 @default.
• W937985267 hasConcept C71924100 @default.
• W937985267 hasConceptScore W937985267C111368507 @default.
• W937985267 hasConceptScore W937985267C120665830 @default.
• W937985267 hasConceptScore W937985267C121332964 @default.
• W937985267 hasConceptScore W937985267C127313418 @default.
• W937985267 hasConceptScore W937985267C136525101 @default.
• W937985267 hasConceptScore W937985267C142724271 @default.
• W937985267 hasConceptScore W937985267C162996421 @default.
• W937985267 hasConceptScore W937985267C192562407 @default.
• W937985267 hasConceptScore W937985267C204223013 @default.
• W937985267 hasConceptScore W937985267C204787440 @default.
• W937985267 hasConceptScore W937985267C207114421 @default.
• W937985267 hasConceptScore W937985267C2777289219 @default.
• W937985267 hasConceptScore W937985267C2779328170 @default.
• W937985267 hasConceptScore W937985267C35655370 @default.
• W937985267 hasConceptScore W937985267C39693636 @default.
• W937985267 hasConceptScore W937985267C49040817 @default.
• W937985267 hasConceptScore W937985267C509933004 @default.
• W937985267 hasConceptScore W937985267C6260449 @default.
• W937985267 hasConceptScore W937985267C71924100 @default.
• W937985267 hasLocation W9379852671 @default.
• W937985267 hasOpenAccess W937985267 @default.
• W937985267 hasPrimaryLocation W9379852671 @default.
• W937985267 hasRelatedWork W1535450118 @default.
• W937985267 hasRelatedWork W1978385580 @default.
• W937985267 hasRelatedWork W1981875927 @default.
• W937985267 hasRelatedWork W1983616424 @default.
• W937985267 hasRelatedWork W1992363485 @default.
• W937985267 hasRelatedWork W1996771051 @default.
• W937985267 hasRelatedWork W2020066072 @default.
• W937985267 hasRelatedWork W2036574291 @default.
• W937985267 hasRelatedWork W2045905456 @default.
• W937985267 hasRelatedWork W2070488818 @default.
• W937985267 hasRelatedWork W2086025769 @default.
• W937985267 hasRelatedWork W2087843968 @default.
• W937985267 hasRelatedWork W2090623152 @default.
• W937985267 hasRelatedWork W2118875214 @default.
• W937985267 hasRelatedWork W2324074615 @default.
• W937985267 hasRelatedWork W2566632385 @default.
• W937985267 hasRelatedWork W3084017964 @default.
• W937985267 hasRelatedWork W3188747833 @default.
• W937985267 hasRelatedWork W86581071 @default.
• W937985267 hasRelatedWork W9634102 @default.
• W937985267 isParatext "false" @default.
• W937985267 isRetracted "false" @default.
• W937985267 magId "937985267" @default.
• W937985267 workType "article" @default.