1976/04/01 by H. H. Li · 445 citations
Chemistry · Engineering · Materials Science · #Absorption (acoustics) #Alkali metal #Analytical Chemistry (journal) #Chemistry #Dielectric #Dispersion (optics) #Ferroelectric and Piezoelectric Materials #Glass properties and applications #Halide #Inorganic chemistry #Materials science #Microwave Dielectric Ceramics Synthesis #Optics #Optoelectronics #Organic chemistry #Physics #Refractive index #Thermodynamics #Wavelength
paper · doi:10.1063/1.555536
published in Journal of Physical and Chemical Reference Data 5(2), 329-528 (American Institute of Physics)
openalex publication_date 1976/04/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/25
Refractive index data for 20 alkali halides are exhaustively surveyed, compiled, and analyzed. The most probable values at 293 K for the transparent region are generated for the materials for which experimental data are sufficiently abundant and reliable. Provisional values are also provided for the wavelength regions where available data are insufficient or missing. Reasonable estimations of refractive index for the very scantily measured materials were made by incorporating the dielectric constants and wavelengths of absorption peaks into a simplified dispersion equation. Temperature derivatives of refractive index for most of the alkali halides were unavailable. However, using the existing data for the five most commonly used alkali halides, novel empirical facts were discovered and dn/dT formulas were constructed for all of the alkali halides. The calculated dn/dT values agree remarkably well with the existing experimental data.