scholarly journals R-branch line intensities and temperature-dependent line broadening and shift coefficients of the nitric oxide fundamental rovibrational band

2019 ◽  
Vol 239 ◽  
pp. 106612 ◽  
Author(s):  
Christopher A. Almodovar ◽  
Wey-Wey Su ◽  
Christopher L. Strand ◽  
Ronald K. Hanson
Keyword(s):  
Nitric Oxide ◽  
Line Broadening ◽  
Temperature Dependent ◽  
Branch Line ◽  
Line Intensities ◽  
Rovibrational Band

scholarly journals Line intensities and temperature-dependent line broadening coefficients of Q-branch transitions in the v2 band of ammonia near 10.4μm

2016 ◽  
Vol 175 ◽  
pp. 90-99 ◽  
Author(s):  
Ritobrata Sur ◽  
R. Mitchell Spearrin ◽  
Wen Y. Peng ◽  
Christopher L. Strand ◽  
Jay B. Jeffries ◽  
...  
Keyword(s):  
Line Broadening ◽  
Temperature Dependent ◽  
Line Intensities

Temperature-induced structural phase transitions in RERhSn (RE = Y, Gd-Tm, Lu)

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Simon Engelbert ◽  
Rolf-Dieter Hoffmann ◽  
Jutta Kösters ◽  
Steffen Klenner ◽  
Rainer Pöttgen
Keyword(s):  
Rare Earth ◽  
Phase Transitions ◽  
Driving Force ◽  
Room Temperature ◽  
Structural Phase ◽  
Structural Phase Transitions ◽  
Line Broadening ◽  
X Ray Diffraction ◽  
Temperature Dependent ◽  
X Ray

Abstract The structures of the equiatomic stannides RERhSn with the smaller rare earth elements Y, Gd-Tm and Lu were reinvestigated on the basis of temperature-dependent single crystal X-ray diffraction data. GdRhSn crystallizes with the aristotype ZrNiAl at 293 and 90 K. For RE = Y, Tb, Ho and Er the HP-CeRuSn type (approximant with space group R3m) is already formed at room temperature, while DyRhSn adopts the HP-CeRuSn type below 280 K. TmRhSn and LuRhSn show incommensurate modulated variants with superspace groups P31m(1/3; 1/3; γ) 000 (No. 157.1.23.1) (γ = 3/8 for TmRhSn and γ = 2/5 for LuRhSn). The driving force for superstructure formation (modulation) is a strengthening of Rh–Sn bonding. The modulation is expressed in a 119Sn Mössbauer spectrum of DyRhSn at 78 K through line broadening.

Flat Crystal X-Ray Optics

1957 ◽  
Vol 1 ◽  
pp. 193-206 ◽  
Author(s):  
William J. Campbell ◽  
Melvin Leon ◽  
John Thatcher
Keyword(s):  
Wave Length ◽  
Pulse Height ◽  
Line Profiles ◽  
Line Broadening ◽  
Crystal Surfaces ◽  
X Ray ◽  
Line Intensities ◽  
Long Wave ◽  
On Line ◽  
College Park

AbstractAn investigation was undertaken by the Bureau of Mines at College Park, Md., to determine the effect of various combinations of collimators, analyzing crystals and detectors on line intensities, line-to-backgrouhd ratios, and spectral resolution. The research showed that line broadening due to mosaic crystal surfaces was greatly reduced and line splitting from faults was eliminatedby the use of two fine collimators (0.005 inch, spacing, 4 inch length). Line intensities were reduced, but lineto- background ratios arid line profiles were substantially improved with double collimators. Pulse height discrimination resulted in marked improvement in the line-to-background ratio in the long-wave length region, 2 to 10 A, but was much less effective for shorter wave lengths.

Λ-Splittings and Line Intensities in the 3 ← 1 Hot Band of14N16O: The Spectrum of Nitric Oxide in the First Overtone Region

1998 ◽  
Vol 187 (2) ◽  
pp. 200-205 ◽  
Author(s):  
J.-Y. Mandin ◽  
V. Dana ◽  
L. Régalia ◽  
A. Barbe ◽  
P.Von der Heyden
Keyword(s):  
Nitric Oxide ◽  
Line Intensities ◽  
Hot Band

Temperature dependent band gap and homogeneous line broadening of the exciton emission in ZnO

2006 ◽  
Vol 3 (4) ◽  
pp. 976-979 ◽  
Author(s):  
R. Hauschild ◽  
H. Priller ◽  
M. Decker ◽  
J. Brückner ◽  
H. Kalt ◽  
...  
Keyword(s):  
Band Gap ◽  
Line Broadening ◽  
Temperature Dependent ◽  
Exciton Emission

Temperature dependent luminescence from quantum dot arrays: phonon-assisted line broadening versus carrier escape-induced narrowing

2009 ◽  
Vol 247 (2) ◽  
pp. 347-352 ◽  
Author(s):  
M. B. Smirnov ◽  
V. G. Talalaev ◽  
B. V. Novikov ◽  
S. V. Sarangov ◽  
N. D. Zakharov ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Line Broadening ◽  
Temperature Dependent ◽  
Carrier Escape

Line Mixing Study on the Fundamental Rovibrational Band of Nitric Oxide near 5.3 μm

2021 ◽  
pp. 107997
Author(s):  
Wey-Wey Su ◽  
Christian Boulet ◽  
Christopher A. Almodovar ◽  
Yiming Ding ◽  
Christopher L. Strand ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Line Mixing ◽  
Rovibrational Band

Interaction Potentials of Hg-Ar from Temperature Dependent Absorption Spectra

1978 ◽  
Vol 33 (12) ◽  
pp. 1461-1468 ◽  
Author(s):  
H. C. Petzold ◽  
W. Behmenburg
Keyword(s):  
Absorption Spectrum ◽  
Thermal Energy ◽  
Short Wavelength ◽  
Line Broadening ◽  
Vibrational States ◽  
Temperature Dependent ◽  
Satellite Structure ◽  
Lennard Jones ◽  
Dependent Absorption ◽  
Short Wavelength Side

Abstract The temperature dependence of the absorption spectrum k(v̄) of Hg-Ar-mixtures in the range 30-1000 cm-1 about the center of the Hg-line at v̄0 = 39425 cm-1 (λ0 = 2536.5 Å) has been investigated in the temperature interval 473 -1273 K. The measurements were carried out at number densities 1.0 x 1017-9.1 X 1018 cm-3 for Hg and 9.4 x 1018-9.7 x 1018 cm-3 for Ar. Potentials for the Hg-Ar-system in the thermal energy range originating from the Hg-states 61S0 and 63P1 have been deduced from the data. It turned out that they differ considerably from Lennard-Jones-functions. By comparison of the observed spectra with calculations on the basis of quantummechanical theory of collisional line broadening it is concluded that transitions from free translational states of Hg-Ar-pairs as well as bound and quasi-bound vibrational states of the Hg-Ar-molecule contribute to the formation of the satellite structure on the short wavelength side of the Hg-line.

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