scholarly journals Refractive index of lithium fluoride to 900 gigapascal and implications for dynamic equation of state measurements

2019 ◽  
Vol 125 (17) ◽  
pp. 175901 ◽  
Author(s):  
L. E. Kirsch ◽  
S. J. Ali ◽  
D. E. Fratanduono ◽  
R. G. Kraus ◽  
D. G. Braun ◽  
...  
Keyword(s):  
Refractive Index ◽  
Equation Of State ◽  
Dynamic Equation ◽  
Lithium Fluoride

scholarly journals Two-phase equation of state for lithium fluoride

2019 ◽  
Vol 150 (7) ◽  
pp. 074506 ◽  
Author(s):  
Philip C. Myint ◽  
Eric L. Shi ◽  
Sebastien Hamel ◽  
Hyunchae Cynn ◽  
Zsolt Jenei ◽  
...  
Keyword(s):  
Equation Of State ◽  
Lithium Fluoride ◽  
Two Phase ◽  
Phase Equation

SHIFT OF BAND GAP FROM DIRECT TO INDIRECT AND OPTICAL RESPONSE OF LiF UNDER PRESSURE

2013 ◽  
Vol 27 (09) ◽  
pp. 1350061 ◽  
Author(s):  
A. SAJID ◽  
G. MURTAZA ◽  
A. H. RESHAK
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Band Gap ◽  
Lithium Fluoride ◽  
Pressure Range ◽  
Pressure Effect ◽  
Indirect Transition ◽  
Direct Band Gap ◽  
Direct Band ◽  
Indirect Band Gap

We hereby are reporting the transition pressure at which lithium fluoride ( LiF ) compound transforms from direct band gap to indirect band gap insulator on the basis of FP-LAPW calculations. The fundamental band gap of LiF compound suffers direct to indirect transition at a pressure of 70 GPa. The study of the pressure effect on the optical properties e.g. dielectric function, reflectivity, refractive index and optical conductivity of LiF in the pressure between 0–100 GPa, shows that this pressure range is very critical for LiF compound as there are significant changes in the optical properties of this compound.

Dynamic equation of state of a gas containing vaporizing droplets

1982 ◽  
Vol 43 (5) ◽  
pp. 1207-1212
Author(s):  
G. P. Yasnikov ◽  
V. S. Belousov
Keyword(s):  
Equation Of State ◽  
Dynamic Equation

An optical method for measuring PVT data, critical constants, virial coefficients, and molecular parameters of GeH4

1983 ◽  
Vol 61 (7) ◽  
pp. 1060-1063
Author(s):  
D. Balzarini ◽  
A. Rosenberg ◽  
P. Palffy-Muhoray
Keyword(s):  
Refractive Index ◽  
Equation Of State ◽  
Optical Method ◽  
Virial Coefficients ◽  
Virial Equation ◽  
Density Range ◽  
Lennard Jones ◽  
Pvt Data ◽  
Virial Equation Of State ◽  
Critical Constants

An optical method has been developed for measuring PVT data for a fluid. The method consists of measuring the refractive index as a function of density and temperature and, separately, as a function of pressure and temperature. The results are combined to yield PVT data. Germane has been studied. Isotherms have been measured in the temperature range 293 to 323 K and the density range 0.07 to 0.7 g cm−3. The data in the critical region are analyzed to obtain the critical constants Pc = 48.8 atm, ρc = 0.522 g cm−3, and Tc = 38.97 C ± 0.2. The data at lower densities are fitted to a virial equation of state to obtain the second and third coefficients. The values at 312.15 K are B = −2.37 cm3 g−1 and C = 1.99 cm6 g−2. The data are analyzed to yield the Lennard–Jones parameters ε/K = 230 ± 15 deg and σ = 4.6 ± 0.2 Å.

scholarly journals Characterization of lithium fluoride windows at 450 K for shock wave experiments: Hugoniot curves and refractive index at 532 nm

2010 ◽  
Vol 10 ◽  
pp. 00015
Author(s):  
E. Fraizier ◽  
P. Antoine ◽  
J.-L. Godefroit ◽  
G. Lanier ◽  
G. Roy ◽  
...  
Keyword(s):  
Shock Wave ◽  
Refractive Index ◽  
Lithium Fluoride ◽  
Hugoniot Curves ◽  
532 Nm

The velocity, refractive index, and equation of state of liquid ammonia at high temperatures and high pressures

2009 ◽  
Vol 131 (13) ◽  
pp. 134502 ◽  
Author(s):  
Fangfei Li ◽  
Min Li ◽  
Qiliang Cui ◽  
Tian Cui ◽  
Zhi He ◽  
...  
Keyword(s):  
Refractive Index ◽  
Equation Of State ◽  
High Temperatures ◽  
Liquid Ammonia ◽  
High Pressures

Equation of state, refractive index and polarizability of compressed water to 7 GPa and 673 K

2013 ◽  
Vol 138 (5) ◽  
pp. 054505 ◽  
Author(s):  
Carmen Sanchez-Valle ◽  
Davide Mantegazzi ◽  
Jay D. Bass ◽  
Eric Reusser
Keyword(s):  
Refractive Index ◽  
Equation Of State
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