Design review of an instrument for spectroscopic total integrated light scattering measurements in the visible wavelength region
1994 (English)In: Review of Scientific Instruments, ISSN 0034-6748, E-ISSN 1089-7623, Vol. 65, no 2, 327-334 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
1994. Vol. 65, no 2, 327-334 p.
Equivalent circuits; Interfaces (materials); Light measurement; Light reflection; Light scattering; Optical coatings; Optical design; Optical systems; Photodetectors; Photodiodes; Sensitivity analysis; Spectrum analysis, Interference coatings; Preamplifier; Total integrated scatter instrument, Spectrometers
Electrical Engineering, Electronic Engineering, Information Engineering Physical Sciences
IdentifiersURN: urn:nbn:se:hig:diva-23232DOI: 10.1063/1.1145191ISI: A1994MX03200006ScopusID: 2-s2.0-0028368633OAI: oai:DiVA.org:hig-23232DiVA: diva2:1062888