H2O Condensation Coefficient and Refractive Index for Vapor-Deposited Ice from Molecular Beam and Optical Interference Measurements

1996 ◽  
Vol 100 (12) ◽  
pp. 4988-4995 ◽  
Author(s):  
D. E. Brown ◽  
S. M. George ◽  
C. Huang ◽  
E. K. L. Wong ◽  
Keith B. Rider ◽  
...  
Keyword(s):  
Refractive Index ◽  
Molecular Beam ◽  
Condensation Coefficient ◽  
Optical Interference ◽  
Interference Measurements

Optical Interference Filters By Sol-Gel Processing

1990 ◽  
Vol 180 ◽  
Author(s):  
J.L. Keddie ◽  
E.P. Giannelis
Keyword(s):  
Refractive Index ◽  
Rutherford Backscattering Spectrometry ◽  
Incident Light ◽  
Sol Gel ◽  
Theoretical Modeling ◽  
Optical Interference ◽  
Interference Filters ◽  
The Individual ◽  
Gel Processing ◽  
Good Agreement

ABSTRACTOptical interference filters have been synthesized by sol-gel. The selected filter is a multilayer of alternating TiO2 and SiO2 films. In transmission, the filter edge depends on the angle of incident light, which can be tailored through control of thickness and refractive index of the individual films. Theoretical modeling of the filter with film thicknesses obtained by Rutherford backscattering spectrometry is in good agreement with the experimental optical response.

Measurement of the Condensation Coefficient of Mercury by a Molecular Beam Method

1975 ◽  
Vol 97 (1) ◽  
pp. 83-87 ◽  
Author(s):  
U. Narusawa ◽  
G. S. Springer
Keyword(s):  
Molecular Beam ◽  
Mercury Vapor ◽  
Clean Surface ◽  
Condensation Coefficient ◽  
Mercury Surface ◽  
Liquid Mercury ◽  
Beam Method ◽  
Beam Incident

The condensation coefficient of mercury was determined by measuring the number flux of a mercury vapor beam incident on, and reflected from, a liquid mercury surface. For a clean surface the condensation coefficient was found to be between 0.65 and 1.

scholarly journals AlGaN-Based Bragg Reflectors

1997 ◽  
Vol 2 ◽  
Author(s):  
O. Ambacher ◽  
M. Arzberger ◽  
D. Brunner ◽  
H. Angerer ◽  
F. Freudenberg ◽  
...  
Keyword(s):  
Refractive Index ◽  
Molecular Beam ◽  
Molar Fraction ◽  
Bragg Reflectors ◽  
Near Ultraviolet ◽  
Photothermal Deflection Spectroscopy ◽  
Interference Fringes ◽  
Measured Absorption ◽  
Ultraviolet Spectral Region ◽  
Photothermal Deflection

We have studied the dependence of the absorption edge and the refractive index of wurtzite AlxGa1−xN films on composition using transmission, ellipsometry and photothermal deflection spectroscopy. The Al molar fraction of the AlxGa1−xN films grown by plasma-induced molecular beam epitaxy was varied through the entire range of composition (0 ≤ x ≤ 1). We determined the absorption edges of AlxGa1−xN films and a bowing parameter of 1.3 ± 0.2 eV. The refractive index below the bandgap was deduced from the interference fringes, the dielectric function between 2.5 and 25 eV from ellipsometry measurements. The measured absorption coefficients and refractive indices were used to calculate the design and reflectivity of AlGaN-based Bragg reflectors working in the blue and near-ultraviolet spectral region.

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