Spectral dependence of the analyticity domain of local vertex functions

2005 ◽  
pp. 66-71
Author(s):  
G. Sommer
Keyword(s):  
Spectral Dependence ◽  
Analyticity Domain ◽  
Local Vertex

THE BAND GAP ESTIMATION OF ZINC MANGANESE PHOSPHATE GLASSES

2008 ◽  
Vol 22 (12) ◽  
pp. 1265-1272 ◽  
Author(s):  
S. A. SIDDIQI ◽  
M. A. GHAURI ◽  
M. J. S. BAIG
Keyword(s):  
Electric Fields ◽  
Spectral Dependence ◽  
Transport Mechanism ◽  
Phosphate Glasses ◽  
Band Gaps ◽  
Spectral Energy ◽  
Charge Transport Mechanism ◽  
Optical Band Gaps ◽  
Manganese Phosphate ◽  
Made In

Zinc manganese phosphate glasses ( ZnO - MnO - P 2 O 5) of different compositions are synthesized. The optical band gaps are measured in the UV-VIS region. Photoconduction measurements are also made in the spectral energy range 1.5–6.2 eV. At various applied electric fields, the values of the energy band gaps have been deduced from the spectral dependence curves. Furthermore, the band gaps at zero applied voltage were also obtained for different compositions. The charge transport mechanism in these glasses is studied under the Mott's model.

Spectral dependence of femtosecond relaxation and coherent phonon excitation inC60films

1997 ◽  
Vol 56 (7) ◽  
pp. 4176-4185 ◽  
Author(s):  
V. M. Farztdinov ◽  
A. L. Dobryakov ◽  
V. S. Letokhov ◽  
Yu. E. Lozovik ◽  
Yu. A. Matveets ◽  
...  
Keyword(s):  
Spectral Dependence ◽  
Coherent Phonon ◽  
Phonon Excitation

Spectral Dependence of Nanocrystal Photoionization Probability: The Role of Hot-Carrier Transfer

ACS Nano ◽  
2011 ◽  
Vol 5 (6) ◽  
pp. 5045-5055 ◽  
Author(s):  
Lazaro A. Padilha ◽  
István Robel ◽  
Doh C. Lee ◽  
Prashant Nagpal ◽  
Jeffrey M. Pietryga ◽  
...  
Keyword(s):  
Spectral Dependence ◽  
Hot Carrier ◽  
Carrier Transfer

Study of the spectral dependence of the absorption coefficient of undoped silicon-carbon films

2012 ◽  
Vol 41 (8) ◽  
pp. 489-490
Author(s):  
M. D. Malinkovich ◽  
Yu. N. Parkhomenko ◽  
M. L. Shupegin ◽  
A. P. Bliev ◽  
A. V. Gritsenko
Keyword(s):  
Absorption Coefficient ◽  
Spectral Dependence ◽  
Carbon Films ◽  
Silicon Carbon

scholarly journals Observations of the spectral dependence of linear particle depolarization ratio of aerosols using NASA Langley airborne High Spectral Resolution Lidar

2015 ◽  
Vol 15 (23) ◽  
pp. 13453-13473 ◽  
Author(s):  
S. P. Burton ◽  
J. W. Hair ◽  
M. Kahnert ◽  
R. A. Ferrare ◽  
C. A. Hostetler ◽  
...  
Keyword(s):  
Case Studies ◽  
Spectral Resolution ◽  
Spectral Dependence ◽  
Saharan Dust ◽  
Spherical Particles ◽  
High Spectral Resolution ◽  
Depolarization Ratio ◽  
Dust Layer ◽  
High Spectral Resolution Lidar ◽  
532 Nm

Abstract. Linear particle depolarization ratio is presented for three case studies from the NASA Langley airborne High Spectral Resolution Lidar-2 HSRL-2). Particle depolarization ratio from lidar is an indicator of non-spherical particles and is sensitive to the fraction of non-spherical particles and their size. The HSRL-2 instrument measures depolarization at three wavelengths: 355, 532, and 1064 nm. The three measurement cases presented here include two cases of dust-dominated aerosol and one case of smoke aerosol. These cases have partial analogs in earlier HSRL-1 depolarization measurements at 532 and 1064 nm and in literature, but the availability of three wavelengths gives additional insight into different scenarios for non-spherical particles in the atmosphere. A case of transported Saharan dust has a spectral dependence with a peak of 0.30 at 532 nm with smaller particle depolarization ratios of 0.27 and 0.25 at 1064 and 355 nm, respectively. A case of aerosol containing locally generated wind-blown North American dust has a maximum of 0.38 at 1064 nm, decreasing to 0.37 and 0.24 at 532 and 355 nm, respectively. The cause of the maximum at 1064 nm is inferred to be very large particles that have not settled out of the dust layer. The smoke layer has the opposite spectral dependence, with the peak of 0.24 at 355 nm, decreasing to 0.09 and 0.02 at 532 and 1064 nm, respectively. The depolarization in the smoke case may be explained by the presence of coated soot aggregates. We note that in these specific case studies, the linear particle depolarization ratio for smoke and dust-dominated aerosol are more similar at 355 nm than at 532 nm, having possible implications for using the particle depolarization ratio at a single wavelength for aerosol typing.

Spectral dependence of oxygen and carbon monoxide photoadsorption on rutile

1979 ◽  
Vol 10 (4) ◽  
pp. 325-328 ◽  
Author(s):  
V. S. Zakharenko ◽  
A. E. Cherkashin ◽  
A. M. Volodin ◽  
N. P. Keier
Keyword(s):  
Carbon Monoxide ◽  
Spectral Dependence

scholarly journals Optimal algorithms for local vertex quartet cleaning

2002 ◽  
Vol 18 (10) ◽  
pp. 1297-1304 ◽  
Author(s):  
G. Della Vedova ◽  
H. T. Wareham
Keyword(s):  
Optimal Algorithms ◽  
Local Vertex
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