Line shapes of narrow optical bands: Infrared absorption byUcenters and heavier impurities in alkali halides

2008 ◽  
Vol 77 (10) ◽  
Author(s):  
Miguel Lagos ◽  
Felipe Asenjo ◽  
Roberto Hauyón ◽  
Denisse Pastén ◽  
Hernán González ◽  
...  
Keyword(s):  
Infrared Absorption ◽  
Alkali Halides ◽  
Line Shapes

Line Shapes in Infrared Absorption by Solids and by Atomic or Molecular Species Embedded in Solids

2010 ◽  
Vol 114 (27) ◽  
pp. 7353-7358 ◽  
Author(s):  
Miguel Lagos ◽  
Felipe A. Asenjo ◽  
Roberto Hauyón ◽  
Denisse Pastén ◽  
Pablo S. Moya
Keyword(s):  
Infrared Absorption ◽  
Molecular Species ◽  
Line Shapes

Photoemission from alkali halides: Energies and line shapes

1980 ◽  
Vol 21 (10) ◽  
pp. 4791-4803 ◽  
Author(s):  
G. D. Mahan
Keyword(s):  
Alkali Halides ◽  
Line Shapes

Collision-induced far infrared absorption in gaseous chlorine and chlorine–argon mixtures

1990 ◽  
Vol 68 (1) ◽  
pp. 121-127 ◽  
Author(s):  
I. R. Dagg ◽  
A. Anderson ◽  
M. C. Mooney ◽  
C. G. Joslin ◽  
W. Smith ◽  
...  
Keyword(s):  
Information Theory ◽  
Spectral Line ◽  
Infrared Absorption ◽  
Spectral Region ◽  
Room Temperature ◽  
Far Infrared ◽  
Multipole Moments ◽  
Gaseous Mixtures ◽  
Line Shapes ◽  
Lennard Jones

Collision-induced absorption is reported in Cl2 and Cl2–Ar gaseous mixtures at room temperature, in the spectral region below 120 cm−1. The results are analyzed according to existing theory, which incorporates estimates of the quadrupole and hexadecapole moments as well as relying on the accuracy of reported Lennard–Jones parameters. In addition, the spectral line shapes are compared with those calculated from information theory for which the theoretical expressions are given for multipole moments. The results for the mixtures are consistent with the generally accepted value of the quadrupole moment, 3.23(±.16) × 10−26 esu (3.23(+.16) Buckingham), and with a theoretical value of the hexadecapole moment, 31.4 × 10−42 esu. If these values of the moments are assumed, the Lennard–Jones parameters of Cl2, are estimated to be σ = 4.20 Å and ε/k = 307 K.

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