Line Shape of Ultraviolet Absorption in Crystalline Rare Gases

1962 ◽  
Vol 36 (10) ◽  
pp. 2805-2806 ◽  
Author(s):  
Albert Gold ◽  
Robert S. Knox
Keyword(s):  
Line Shape ◽  
Ultraviolet Absorption ◽  
Rare Gases

Autoionisation in Atomspektren

1968 ◽  
Vol 23 (1) ◽  
pp. 137-151
Author(s):  
F. J. Comes ◽  
H. G. Sälzer ◽  
G. Schumpe
Keyword(s):  
Numerical Calculation ◽  
Cross Sections ◽  
Line Shape ◽  
Shape Parameter ◽  
Atomic Gases ◽  
Rare Gases ◽  
Rydberg Series ◽  
Ionic States ◽  
Line Shape Parameter ◽  
Absorption Measurements

A detailed discussion of the phenomenon of autoionization and its influence on the absorption spectra of atomic gases is given. Some consideration is devoted to the calculation of cross sections. This theory is applied to the autoionizing Rydberg levels lying above the 2P3/2 threshold of the rare gases krypton and xenon. A numerical calculation is decribed which alows the important parameters of Rydberg series to be calculated. These parameters are the so called unperturbed continuum, the lifetime and oscillator strength of the autoionizing states, the line shape parameter and the quantum defect. From absorption measurements in argon and krypton considerations follow concerning the behaviour of these terms at threshold. A further result of the calculations is the transition probality into the ionic states 2P3/2 and 2P1/2 at the 2P1/2 limit. These values are compared with measured intensities of photoelectrons from a retarding potential experiment.

The observation of nano-voids in Au thin films

1987 ◽  
Vol 45 ◽  
pp. 366-367
Author(s):  
William Krakow
Keyword(s):  
Thin Films ◽  
Melting Point ◽  
Present Author ◽  
Stacking Faults ◽  
Damage Threshold ◽  
Ionic Species ◽  
Rare Gases ◽  
Chain Defects ◽  
Vacancy Chains ◽  
Au Thin Films

It has long been known that defects such as stacking faults and voids can be quenched from various alloyed metals heated to near their melting point. Today it is common practice to irradiate samples with various ionic species of rare gases which also form voids containing solidified phases of the same atomic species, e.g. ref. 3. Equivalently, electron irradiation has been used to produce damage events, e.g. ref. 4. Generally all of the above mentioned studies have relied on diffraction contrast to observe the defects produced down to a dimension of perhaps 10 to 20Å. Also all these studies have used ions or electrons which exceeded the damage threshold for knockon events. In the case of higher resolution studies the present author has identified vacancy and interstitial type chain defects in ion irradiated Si and was able to identify both di-interstitial and di-vacancy chains running through the foil.

CALCULATION OF THE FREE-BOUND CONTINUUM OF RARE GASES

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-93-C7-94
Author(s):  
P. Ranson ◽  
J. Chapelle
Keyword(s):  
Rare Gases

LINE SHAPE PARAMETERS OF WATER VAPOR TRANSITIONS IN THE 3645-3975 cm−1 REGION

2017 ◽  
Author(s):  
Mary Smith ◽  
Thomas Blake ◽  
Robert Sams ◽  
Candice Renaud ◽  
Bastien Vispoel ◽  
...  
Keyword(s):  
Water Vapor ◽  
Line Shape ◽  
Shape Parameters
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