Spectral characteristics of absorption and ionization in transitions to the continuum and to autoionizing states

Journal Article · Tue Jan 01 00:00:00 EST 1985 · J. Sov. Laser Res.; (United States)

OSTI ID:5938461

Geller, Y I; Popov, A K

A discussion of continuous spectrum and autoionizing levels includes an examination of the characteristics of the continuum and of the autoionizing states. Matrix elements of transitions to the continuum, and spin-orbit interaction in the continuum are reviewed. The effects of spin-orbit interaction on the matrix elements of a transition are described by a wave form that is presented. A review and discussion of photoabsorption probability, photoionization and recombination cross sections in the absence of autoinizing levels are given. Oscillator strength for transition to the continuum is examined. The spectral characteristics of the cross section for photoionization of hydrogenlike atoms in the absence of spin-orbit interaction is also presented. The Fano theory as it pertains to discrete level in a continuum, is discussed. Basic equations are given for the probability amplitudes and for the density matrix. Certain methods of solving the basic equations are provided.

• OSTI ID: 5938461
• Journal Information: J. Sov. Laser Res.; (United States), Vol. 6:1; Other Information: Trans. from Lazernoe Indutsirovanie Neleinykh Rezonansov v Sploshnykh Spektrakh, p. 3-155
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ENERGY-LEVEL TRANSITIONS
ABSORPTION SPECTRA
FANO FACTOR
IONIZATION
L-S COUPLING
AUTOIONIZATION
LASER RADIATION
LASER SPECTROSCOPY
MATRIX ELEMENTS
NUMERICAL SOLUTION
RECOMBINATION
WAVE FORMS
COUPLING
ELECTROMAGNETIC RADIATION
INTERMEDIATE COUPLING
RADIATIONS
SPECTRA
SPECTROSCOPY
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena