Absorption Edge of Pure and Selenium-Doped α-Sulfur Single Crystals

1985 ◽  
Vol 91 (2) ◽  
pp. 627-630 ◽  
Author(s):  
A. K. Abass ◽  
N. H. Ahmad
Keyword(s):  
Single Crystals ◽  
Absorption Edge

Temperature shift of the absorption edge in mixed single crystals ofZnxCd1−xSe

1987 ◽  
Vol 36 (2) ◽  
pp. 1174-1177 ◽  
Author(s):  
L. Samuel ◽  
Y. Brada ◽  
A. Burger ◽  
M. Roth
Keyword(s):  
Single Crystals ◽  
Absorption Edge ◽  
Temperature Shift

Fundamental Optical Absorption Edge in MnGa2Te4 Single Crystals

1988 ◽  
pp. 631-644
Author(s):  
G. A. Medvedkin ◽  
Yu. V. Rud ◽  
M. A. Taibov
Keyword(s):  
Optical Absorption ◽  
Single Crystals ◽  
Absorption Edge ◽  
Optical Absorption Edge

Temperature modulated spectroscopy of piezoelectric Bi12TiO20 single crystals near the absorption edge

1982 ◽  
Vol 43 (1) ◽  
pp. 87-89
Author(s):  
M. Grandolfo ◽  
F. Somma ◽  
P. Vecchia ◽  
M. Efendiev ◽  
V. E. Bagiev
Keyword(s):  
Single Crystals ◽  
Absorption Edge

Red Shift of Absorption Edge and Nonmetal–Metal Transition in Single Crystals La1—xSrxMnO3 (x = 0.1, 0.2, 0.3)

1997 ◽  
Vol 164 (2) ◽  
pp. 863-867 ◽  
Author(s):  
N. N. Loshkareva ◽  
Yu.P. Sukhorukov ◽  
B. A. Gizhevskii ◽  
A. A. Samokhvalov ◽  
V. E. Arkhipov ◽  
...  
Keyword(s):  
Single Crystals ◽  
Absorption Edge ◽  
Red Shift

Reflection and Absorption Edge Spectra in Mercurous Halide Single Crystals

1984 ◽  
Vol 53 (10) ◽  
pp. 3672-3675 ◽  
Author(s):  
Xue Yin Jiang ◽  
Tadashi Itoh ◽  
Takenari Goto
Keyword(s):  
Single Crystals ◽  
Absorption Edge

No-Phonon and Phonon-Assisted Indirect Transitions in Si1−xGex Single Crystals

1996 ◽  
Vol 450 ◽  
Author(s):  
A. Gerhardt
Keyword(s):  
Single Crystals ◽  
Absorption Edge ◽  
Energy Gap ◽  
Differential Method ◽  
Composition Analysis ◽  
Calibration Function ◽  
Absorption Properties ◽  
Transmission Measurements ◽  
Threshold Energies ◽  
Phonon Transition

ABSTRACTThe absorption properties of high quality bulk Si1−xGex single crystals (0 ≤ × ≤ 0.16) are studied. Transmission measurements were performed at the indirect absorption edge. The shape of the absorption edge is characterized by structures attributed to the onset of no-phonon and phonon-assisted indirect optical transitions. Threshold energies have been determined using a differential method. A corrected calibration function for the dependence of the excitonic energy gap on composition is presented for the compositions, where x ranges from 0 to 0.16. The presented calibration function can be used for the composition analysis by an optical method. The analysis is independent of absolute transmission values.A simulation of the absorption spectra by calculations based on second order perturbation theory was used to fit the experimental data This procedure allows to estimate the oscillator strength of the no-phonon transition in dependence on x.

Fundamental optical absorption edge in MnGa2Te4 single crystals

1988 ◽  
Vol 110 (2) ◽  
pp. 631-643 ◽  
Author(s):  
G. A. Medvedkin ◽  
Yu. V. Rud ◽  
M. A. Tairov
Keyword(s):  
Optical Absorption ◽  
Single Crystals ◽  
Absorption Edge ◽  
Optical Absorption Edge
Sign in / Sign up

Export Citation Format

Share Document