The Absorption Spectra of Ions of Europium and the Electric Fields within Some Coördination Compounds

1941 ◽  
Vol 63 (4) ◽  
pp. 1079-1085 ◽  
Author(s):  
Simon Freed ◽  
S. I. Weissman ◽  
Fred E. Fortess
Keyword(s):  
Absorption Spectra ◽  
Electric Fields ◽  
Coordination Compounds

Investigation of K-edge absorption spectra of vanadium coordination compounds

1986 ◽  
Vol 42 (7) ◽  
pp. 841-844 ◽  
Author(s):  
K.H. Hallmeier ◽  
R. Szargan ◽  
G. Werner ◽  
R. Meier ◽  
M.A. Sheromov
Keyword(s):  
Absorption Spectra ◽  
Coordination Compounds ◽  
Edge Absorption

TWO-PHOTON-ABSORPTION SPECTRA OF QUANTUM-WELL EXCITONS IN STATIC ELECTRIC FIELDS

1991 ◽  
Vol 05 (17) ◽  
pp. 1133-1138
Author(s):  
KAZUHITO FUJII ◽  
AKIRA SHIMIZU ◽  
JOHAN BERGQUIST ◽  
SOTOMITSU IKEDA ◽  
TAKESHI SAWADA
Keyword(s):  
Electric Field ◽  
Quantum Well ◽  
Absorption Spectra ◽  
Electric Fields ◽  
Band Gap Energy ◽  
Photon Absorption ◽  
Static Electric Field ◽  
Quantum Well Structures ◽  
Two Photon Absorption ◽  
Two Photon

We have measured two-photon-absorption spectra of GaAs/Al 0.4 Ga 0.6 As quantum-well structures in a static electric field for photon energies near half the band gap energy, and found drastic field-induced-changes in the spectra. The two-photon-absorption peak at half the energy of the lowest light-hole exciton is induced by the static electric field normal to the quantum well layers, in agreement with a theory that takes account of quasi-two-dimensional exciton effects. With increasing the electric field, however, this peak grows more drastically than the theoretical prediction, and it approaches a large value predicted by another simplified theory based on a two-level model.

K-edge X-ray absorption spectra of biomimetic oxovanadium coordination compounds

1989 ◽  
Vol 136 (3) ◽  
pp. 405-412 ◽  
Author(s):  
Carola Weidemann ◽  
Dieter Rehder ◽  
Ulrich Kuetgens ◽  
Josef Hormes ◽  
Hans Vilter
Keyword(s):  
Absorption Spectra ◽  
Coordination Compounds ◽  
X Ray ◽  
X Ray Absorption
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