Design review of an instrument for spectroscopic total integrated light scattering measurements in the visible wavelength region

Autor:	Daniel Rönnow, Eugen Veszelei
Rok vydání:	1994
Předmět:	Materials science Diffuse reflectance infrared fourier transform business.industry Scattering Preamplifier Light scattering Wavelength Optics Interference (communication) Transmittance Optoelectronics Diffuse reflection business Instrumentation Computer Science::Information Theory
Zdroj:	Review of Scientific Instruments. 65:327-334
ISSN:	1089-7623 0034-6748
DOI:	10.1063/1.1145191
Popis:	A spectroscopic total integrated scattering instrument, which uses a focusing sphere and a broadband light source, has been constructed. It records total reflectance and transmittance spectroscopically, in the wavelength region 400–1000 nm. Diffuse reflectance and transmittance values below 10−4 can be registered. These measurements require low scattering optical components and low noise electronics. Design details are given about the detection system, particularly the low noise preamplifier. The purpose of the instrument is to measure diffuse reflectance and transmittance spectra of interference coatings. Such spectra can give information about the amplitude of the roughness of the interfaces and reveal if the interfaces are topographically correlated or uncorrelated. Examples of spectra in both reflectance and transmittance mode are given.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::aef9c8b0fda2ac3a33ec26624cb7bb43 https://doi.org/10.1063/1.1145191 Zobrazit plný text záznamu