Analysis of measurement error caused by swing motion for determining the physical thickness and group refractive index of a large glass panel

2019 ◽  
Author(s):  
Jonghan Jin ◽  
Jaeseok Bae ◽  
Jungjae Park
Keyword(s):  
Refractive Index ◽  
Measurement Error ◽  
Glass Panel ◽  
Large Glass ◽  
Group Refractive Index ◽  
Physical Thickness

Low-Cost Heat Insulating Film Design for BIPV Modules Based on Multi-Layer Inorganic Materials

2012 ◽  
Vol 452-453 ◽  
pp. 1424-1428
Author(s):  
Han Min Tian ◽  
Li Jia Guo ◽  
Wen Feng Duan ◽  
Rui Xia Yang ◽  
Feng Lan Tian
Keyword(s):  
Refractive Index ◽  
Visible Light ◽  
Absorption Rate ◽  
Heat Insulation ◽  
Low Cost ◽  
Heat Rate ◽  
Optimum Combination ◽  
Inorganic Materials ◽  
Tempered Glass ◽  
Glass Panel

By analyzing the transmitionce and heat rate of insulating antireflection films conposed by refractive-index adjustable SiO2 layer and TiO2 layers, the optimum combination of antireflection films of BIPV is obtained. The absorption rate at the ultraviolet part that wavelenght excessive inadequate 400nm of the optimized fils is 99.9%, which are directly designed on the surface of the low iron tempered glass panel of BIPV, and in the wavelength range 400nm-800nm, the visible light transmitionce rate is up to 99.5%, and the heat that wavelenght excessive 800nm is reflected of 20%. For the multilayer heat insulation films are composed with the same kind of material while with different refractive indexes, there is no projecting stress between these films and no constraints during the production process of different films for the possible low cost heat insulating of BIPV.

Minimal group refractive index dispersion and gain evolution in ultra-broad-band quantum cascade lasers

2002 ◽  
Vol 14 (12) ◽  
pp. 1671-1673 ◽  
Author(s):  
C. Gmachl ◽  
A. Soibel ◽  
R. Colombelli ◽  
D.L. Sivco ◽  
F. Capasso ◽  
...  
Keyword(s):  
Refractive Index ◽  
Quantum Cascade Lasers ◽  
Broad Band ◽  
Refractive Index Dispersion ◽  
Minimal Group ◽  
Quantum Cascade ◽  
Group Refractive Index ◽  
Cascade Lasers

scholarly journals Group refractive index reconstruction with broadband interferometric confocal microscopy

2008 ◽  
Vol 25 (5) ◽  
pp. 1156 ◽  
Author(s):  
Daniel L. Marks ◽  
Simon C. Schlachter ◽  
Adam M. Zysk ◽  
Stephen A. Boppart
Keyword(s):  
Refractive Index ◽  
Confocal Microscopy ◽  
Group Refractive Index

The Group Refractive Index of Air

1968 ◽  
Vol 7 (7) ◽  
pp. 1408 ◽  
Author(s):  
L. E. Wood ◽  
M. C. Thompson
Keyword(s):  
Refractive Index ◽  
Group Refractive Index

REFRACTIVE INDEX OF He4: LIQUID

1958 ◽  
Vol 36 (7) ◽  
pp. 884-898 ◽  
Author(s):  
M. H. Edwards
Keyword(s):  
Refractive Index ◽  
Experimental Error ◽  
Saturated Vapor ◽  
Liquid Density ◽  
Phase Index ◽  
Vertical Tangent ◽  
Group Refractive Index ◽  
Relative Measurements ◽  
Λ Point

Changes in the phase refractive index n with temperature have been measured between 1.6 and 4.2° K at λ = 5462.27 Å, for liquid He4 at its saturated vapor pressure, using a metal optical cryostat and a Jamin interferometer. A novel adaptation of the Jamin interferometer has been made so that, in addition, an absolute determination of the group refractive index, nG, could be made using white light of "effective wavelength" 5595 ± 40 Å. When the dispersion correction is made, the phase index for the Hg green line at T55E = 3.700° K is n = 1.026124 ± 0.000035. The relative measurements have been adjusted to this value. The more than 200 experimental points show a random scatter of less than 5 × 10−6 in index. Using Kerr's density data the polarizability is thus (N0α) = (0.12454 ± 0.00021) cm3 mole−1 at λ = 5462.27 Å, for liquid He4 at 3.7 °K. Within experimental error (N0α) is found to be independent of temperature. Thus the refractive index data may be considered as a measurement of the liquid density and coefficient of expansion.The region near the λ-point is of special interest. The expansion coefficient determined from the refractive index, βn, may be represented within experimental error by 103βnI = +41.5 + 14.5 log|T−Tλ| for T > Tλ, from about 0.1° above Tλ to within 0.01° of Tλ; and by 103βnII = −1.5 + 14.5 log |T−Tλ| for T < Tλ, from about 0.1° below Tλ to within 0.002° of Tλ. This implies that the density–temperature curve has both a vertical tangent and a point of inflection at the λ-point; and that the maximum in density occurs about 0.001° above the λ-point.

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