SIZE DEPENDENT FMR LINE-SHIFT AND LINE-WIDTH STUDIES IN POLYCRYSTALLINE FERRITES AND GARNETS

1977 ◽  
Vol 38 (C1) ◽  
pp. C1-267-C1-269 ◽  
Author(s):  
C. M. SRIVASTAVA ◽  
M. J. PATNI ◽  
N. G. NANADIKAR
Keyword(s):  
Line Width ◽  
Line Shift ◽  
Size Dependent

Properties of Digital Smoothing Polynomial (DISPO) Filters

1981 ◽  
Vol 35 (1) ◽  
pp. 88-92 ◽  
Author(s):  
Horst Ziegler
Keyword(s):  
Noise Reduction ◽  
Real Time ◽  
Line Width ◽  
Time Constant ◽  
Fourth Order ◽  
Digital Filters ◽  
Half Width ◽  
Line Shift ◽  
Scan Speed

Digital filters for spectrometric applications are compared with the classical RC filter. Properties discussed include noise reduction, line shift, and conservation of line moments. For Gaussian and Lorentzian lines, signal deformation and change of half-width as a function of time constant and line width are calculated for several filter types. Using accuracy, sensitivity, and scan speed as criteria, it is shown that a fourth-order digital smoothing polynomial (DISPO) filter is better by typically 1 or even 2 orders of magnitude than the RC filter. Since a real time implementation of these filters is possible, they can directly replace RC filters in all spectrometric applications.

On the analysis of the thermal line shift and thermal line width of ions in solids

2015 ◽  
Vol 158 ◽  
pp. 265-267 ◽  
Author(s):  
Brian M. Walsh ◽  
Baldassare Di Bartolo
Keyword(s):  
Line Width ◽  
Line Shift ◽  
Thermal Line

scholarly journals Radiation Defect-Induced Lattice Contraction of InP

1986 ◽  
Vol 74 ◽  
Author(s):  
C. R. Wie ◽  
T. Jones ◽  
T. A. Tombrello ◽  
T. Vreeland ◽  
F. Xiong ◽  
...  
Keyword(s):  
Raman Line ◽  
Line Width ◽  
Radiation Defect ◽  
Lattice Spacing ◽  
Lattice Strain ◽  
Line Shift ◽  
Lattice Contraction ◽  
Recovery Stage

AbstractWe studied the lattice strain induced in the MeV ion bombarded InP crystals and the annealing behaviors of lattice strain, Raman line shift, and linewidth. The lattice spacing for the planes parallel to the surface decreases as a result of irradiation, and amounts to a strain of −0.061% for (100) face, −0.056% for (110) face, and −0.050% for (111) face for 15 MeV Cl bombarded samples to a dose of 1.25E15 ions/cm2. The negative lattice strain, Raman line shift, and line width completely recover at 450°C, and show a major recovery stage at 250°C – 350°C.

Li(2p ← 2s) + Na(3s) pressure broadening in the far-wing and line-core profiles

2021 ◽  
Author(s):  
F. Talbi ◽  
N. Lamoudi ◽  
L. Reggami ◽  
M. T. Bouazza ◽  
K. Alioua ◽  
...  
Keyword(s):  
Line Width ◽  
Resonance Line ◽  
Core Region ◽  
Line Shift ◽  
Published Data ◽  
Pressure Broadening ◽  
Line Wing ◽  
Line Core ◽  
Blue Wing ◽  
Red Wing

Abstract This work reports pressure-broadening line-wing and line-core of the lithium Li (2p ← 2s) resonance line perturbed by ground sodium Na (3s) atoms. In far-wing region the calculations are performed quantum-mechanically and are intended to examine the photoabsorption coefficients at diverse temperatures. The results show the existence of three satellites, in the blue wing near the wavelengths 470nm and in the red wing around 862 and 1070nm. For the line-core region, by adopting the simplified Baranger model the line-width and line-shift rates are determined and their variation law with temperature is examined. No published data were found to compare these results with.

Etude expérimentale du décalage de la raie d'inversion J = 13, K = 13 de l'ammoniac 14NH3 en fonction de la pression du gaz

1978 ◽  
Vol 56 (7) ◽  
pp. 882-890 ◽  
Author(s):  
J. P. Mathelin ◽  
P. Suzeau ◽  
B. Lamalle ◽  
J. Chanussot
Keyword(s):  
Line Width ◽  
Etude Expérimentale ◽  
Line Shift ◽  
Open Cavity ◽  
Shift Parameter ◽  
J 13 ◽  
K 13 ◽  
Étude Expérimentale

By using an open cavity Perot–Fabry type video spectrometer, the variation of line width and line shift of J = 13, K = 13 inversion line of ammonia is studied vs. the pressure p of the gas. The following results are obtained: line width parameter Δv/p = 25 ± 1 MHz/Torr, line shift parameter δv/p = 1.9 ± 0.4 MHz/Torr, collisional diameter be = 13.3 Å.

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