scholarly journals XI. On the dependence of the refractive index of gases on temperature

1903 ◽  
Vol 201 (331-345) ◽  
pp. 435-455 ◽  
Keyword(s):  
Refractive Index ◽  
Temperature Effect ◽  
Theoretical Formula ◽  
Related Property ◽  
Actual Temperature ◽  
Theoretical Investigations ◽  
Electric Susceptibility

The importance of this question was first impressed on me in the course of some theoretical investigations on refraction in gases and the closely related property of electric susceptibility. A comparison of the actual temperature effect on a property of a body, with a theoretical formula professing to explain the property, is a very severe test, and one which has proved fatal to many theories.

Theoretical investigations of the g factors of orthorhombic Cu2+ site in oxycarbonate phase YBa2Cu2.95(CO3)0.35O6.6

2015 ◽  
Vol 29 (25n26) ◽  
pp. 1542016 ◽  
Author(s):  
Yong-Qiang Xu ◽  
Shao-Yi Wu ◽  
Zhi-Hong Zhang ◽  
Hui-Ning Dong
Keyword(s):  
Experimental Data ◽  
Structural Parameters ◽  
Theoretical Formula ◽  
Length Variation ◽  
Apical Oxygen ◽  
Oxygen Ions ◽  
Theoretical Investigations ◽  
Jahn Teller ◽  
Jahn Teller Effect ◽  
Good Agreement

The [Formula: see text] factors of orthorhombic [Formula: see text] site in oxycarbonate phase [Formula: see text] are theoretically investigated using the perturbation formulas of the [Formula: see text] factors for an orthorhombically elongated [Formula: see text] cluster. This pseudo-octahedral [Formula: see text] center is formed by two apical oxygen ligands and four coplanar oxygen ions belonging to the respective four neighboring carbonate groups. The [Formula: see text] cluster is found to suffer the relative axial elongation of about 0.04 Å and the perpendicular bond length variation of about 0.12 Å due to the Jahn–Teller effect. The theoretical [Formula: see text] factors based on the local structural parameters show good agreement with the experimental data.

Sensitivity of Plasmonic Nanostructures Coated with Thin Oxide Films for Refractive Index Sensing: Experimental and Theoretical Investigations

2010 ◽  
Vol 114 (27) ◽  
pp. 11769-11775 ◽  
Author(s):  
Elisabeth Galopin ◽  
Joanna Niedziółka-Jönsson ◽  
Abdellatif Akjouj ◽  
Yan Pennec ◽  
Bahram Djafari-Rouhani ◽  
...  
Keyword(s):  
Refractive Index ◽  
Oxide Films ◽  
Plasmonic Nanostructures ◽  
Refractive Index Sensing ◽  
Theoretical Investigations ◽  
Thin Oxide Films ◽  
Thin Oxide

Temperature Effect on High Precision Measurement of Refractive Index Homogeneity of Optical Glass

2012 ◽  
Vol 49 (1) ◽  
pp. 011203
Author(s):  
张建锋 Zhang Jianfeng ◽  
曹学东 Cao Xuedong ◽  
吴时彬 Wu Shibin ◽  
景洪伟 Jing Hongwei ◽  
阴旭 Yin Xu
Keyword(s):  
Refractive Index ◽  
Temperature Effect ◽  
High Precision ◽  
Precision Measurement ◽  
Optical Glass ◽  
High Precision Measurement

Substrate temperature effect on the refractive index and a two-step film method to detect small inhomogeneities in optical films

2005 ◽  
Vol 44 (29) ◽  
pp. 6181 ◽  
Author(s):  
Fachun Lai ◽  
Ming Li ◽  
Kang Chen ◽  
Haiqian Wang ◽  
Yizhou Song ◽  
...  
Keyword(s):  
Refractive Index ◽  
Substrate Temperature ◽  
Temperature Effect ◽  
Optical Films ◽  
Film Method

TEM characterization of proton-exchanged LiNbO3 optical waveguides

1986 ◽  
Vol 44 ◽  
pp. 480-481
Author(s):  
W. E. Lee
Keyword(s):  
Refractive Index ◽  
Benzoic Acid ◽  
Optical Waveguides ◽  
Total Internal Reflection ◽  
Index Of Refraction ◽  
Optical Measurements ◽  
Lithium Ions ◽  
Wide Channel ◽  
Tem Characterization

An optical waveguide consists of a several-micron wide channel with a slightly different index of refraction than the host substrate; light can be trapped in the channel by total internal reflection.Optical waveguides can be formed from single-crystal LiNbO3 using the proton exhange technique. In this technique, polished specimens are masked with polycrystal1ine chromium in such a way as to leave 3-13 μm wide channels. These are held in benzoic acid at 249°C for 5 minutes allowing protons to exchange for lithium ions within the channels causing an increase in the refractive index of the channel and creating the waveguide. Unfortunately, optical measurements often reveal a loss in waveguiding ability up to several weeks after exchange.

Light microscopy of ceramics

1993 ◽  
Vol 51 ◽  
pp. 908-909
Author(s):  
Walter C. McCrone
Keyword(s):  
Refractive Index ◽  
Light Microscopy ◽  
Light Microscope ◽  
Polarized Light ◽  
Refractive Indices ◽  
Complete Coverage ◽  
The Subject ◽  
Lower Refractive Index

An excellent chapter on this subject by V.D. Fréchette appeared in a book edited by L.L. Hench and R.W. Gould in 1971 (1). That chapter with the references cited there provides a very complete coverage of the subject. I will add a more complete coverage of an important polarized light microscope (PLM) technique developed more recently (2). Dispersion staining is based on refractive index and its variation with wavelength (dispersion of index). A particle of, say almandite, a garnet, has refractive indices of nF = 1.789 nm, nD = 1.780 nm and nC = 1.775 nm. A Cargille refractive index liquid having nD = 1.780 nm will have nF = 1.810 and nC = 1.768 nm. Almandite grains will disappear in that liquid when observed with a beam of 589 nm light (D-line), but it will have a lower refractive index than that liquid with 486 nm light (F-line), and a higher index than that liquid with 656 nm light (C-line).

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