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Critical Angle Refractometry for Lossy Media with a Priori Known Extinction Coefficient
- Source :
- Physics, Vol 3, Iss 36, Pp 569-578 (2021), Physics, Volume 3, Issue 3, Pages 36-578
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- Critical angle refractometry is an established technique for determining the refractive index of liquids and solids. For transparent samples, the critical angle refractometry precision is limited by incidence angle resolution. For lossy samples, the precision is also affected by reflectance measurement error. In the present study, it is demonstarted that reflectance error can be practically eliminated, provided that the sample’s extinction coefficient is a priori known with sufficient accuracy (typically, better than 5%) through an independent measurement. Then, critical angle refractometry can be as precise with lossy media as with transparent ones.
- Subjects :
- Physics
Total internal reflection
refractive index
Observational error
business.industry
QC1-999
Optical instrument
optical instruments
02 engineering and technology
Molar absorptivity
Lossy compression
021001 nanoscience & nanotechnology
01 natural sciences
law.invention
010309 optics
Optics
law
0103 physical sciences
A priori and a posteriori
0210 nano-technology
business
critical angle refractometry
Refractometry
Refractive index
Subjects
Details
- ISSN :
- 26248174
- Volume :
- 3
- Database :
- OpenAIRE
- Journal :
- Physics
- Accession number :
- edsair.doi.dedup.....5ae50a0b046cf061dfb9e368cb3add5b