Absorption spectra of wide-gap semiconductors in their transparency region

2003 ◽  
Vol 227 (4-6) ◽  
pp. 337-341 ◽  
Author(s):  
Babak Imangholi ◽  
Michael P. Hasselbeck ◽  
Mansoor Sheik-Bahae
Keyword(s):  
Absorption Spectra ◽  
Transparency Region ◽  
Wide Gap

Ultraviolet Absorption of Refractory Elements by a Dual Laser Plasma Method

1988 ◽  
Vol 102 ◽  
pp. 243-246
Author(s):  
J.T. Costello ◽  
W.G. Lynam ◽  
P.K. Carroll
Keyword(s):  
Absorption Spectra ◽  
Laser Plasma ◽  
Optical Pulse ◽  
Ionic Species ◽  
Neutral Species ◽  
Plasma Method ◽  
Plasma Technique ◽  
Refractory Elements ◽  
Delay Times ◽  
Dual Laser

AbstractThe dual laser-produced plasma technique for the study of ionic absorption spectra has been developed by the use of two Q-switched ruby lasers to enable independent generation of the absorbing and back-lighting plasmas. Optical pulse handling is used in the coupling cicuits to enable reproducible pulse delays from 250 nsec. to 10 msec, to be achieved. At delay times > 700 nsec. spectra of essentially pure neutral species are observed. The technique is valuable, not only for obtaining the neutral spectra of highly refractory and/or corrosive materials but also for studying behaviour of ionic species as a function of time. Typical spectra are shown in Fig. 1.

XUV Absorption Spectra of Carbon Ions

1988 ◽  
Vol 102 ◽  
pp. 71-73
Author(s):  
E. Jannitti ◽  
P. Nicolosi ◽  
G. Tondello
Keyword(s):  
Absorption Spectra ◽  
Cross Section ◽  
Theoretical Calculations ◽  
Photoionization Cross Section ◽  
Carbon Ions

AbstractThe photoabsorption spectra of the carbon ions have been obtained by using two laser-produced plasmas. The photoionization cross-section of the CV has been absolutely measured and the value at threshold, σ=(4.7±0.5) × 10−19cm2, as well as its behaviour at higher energies agrees quite well with the theoretical calculations.

Dark exciton states and magneto-excitons in wide-gap II-VI quantum wells

1998 ◽  
Vol 184-185 (1-2) ◽  
pp. 787-794 ◽  
Author(s):  
F Henneberger
Keyword(s):  
Quantum Wells ◽  
Wide Gap ◽  
Dark Exciton

Surface enhancement of Raman and absorption spectra from cyanine dye D266 adsorbed on ZnO colloids

1996 ◽  
Vol 88 (1) ◽  
pp. 281-290 ◽  
Author(s):  
HAO WEN ◽  
TIANJING HE ◽  
CUNYI XU ◽  
JIAN ZUO ◽  
FAN-CHEN LIU
Keyword(s):  
Absorption Spectra ◽  
Cyanine Dye ◽  
Surface Enhancement ◽  
Zno Colloids

Computer simulation of the far infrared collision induced absorption spectra of gaseous CO2

1998 ◽  
Vol 93 (6) ◽  
pp. 1007-1016 ◽  
Author(s):  
MARCIN GRUSZKA ◽  
ALEKSANDRA BORYSOW
Keyword(s):  
Computer Simulation ◽  
Absorption Spectra ◽  
Far Infrared ◽  
Induced Absorption

Wide-gap re-entrant cavity resonators for 900-1500 MHz

1984 ◽  
Vol 131 (6) ◽  
pp. 423 ◽  
Author(s):  
D.P. Howson
Keyword(s):  
Cavity Resonators ◽  
Wide Gap
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