Electric Dichroism Studies on an Aqueous Dispersion of Unilamellar Titanium Oxides:  Optical Anisotropy near the Absorption Edge

2004 ◽  
Vol 108 (45) ◽  
pp. 17306-17312 ◽  
Author(s):  
Hisako Sato ◽  
Yoshihisa Hiroe ◽  
Takayoshi Sasaki ◽  
Kanta Ono ◽  
Akihiko Yamagishi
Keyword(s):  
Absorption Edge ◽  
Optical Anisotropy ◽  
Aqueous Dispersion ◽  
Titanium Oxides ◽  
Electric Dichroism

Optical Anisotropy of Chromatin. Flow Linear Dichroism and Electric Dichroism Studies

1988 ◽  
Vol 5 (5) ◽  
pp. 1135-1148 ◽  
Author(s):  
Stephan I. Dimitrov ◽  
Ivan V. Smirnov ◽  
Vladimir L. Makarov
Keyword(s):  
Optical Anisotropy ◽  
Linear Dichroism ◽  
Electric Dichroism

X-Ray absorption edge elemental imaging of B. thuringienis

1989 ◽  
Vol 47 ◽  
pp. 212-213
Author(s):  
R. L. Stears
Keyword(s):  
Absorption Edge ◽  
Elemental Distribution ◽  
X Rays ◽  
Differential Absorption ◽  
Synchrotron Source ◽  
High Brightness ◽  
X Ray ◽  
Elemental Imaging ◽  
Cellular Integrity ◽  
X Ray Absorption

Because of the nature of the bacterial endospore, little work has been done on analyzing their elemental distribution and composition in the intact, living, hydrated state. The majority of the qualitative analysis entailed intensive disruption and processing of the endospores, which effects their cellular integrity and composition.Absorption edge imaging permits elemental analysis of hydrated, unstained specimens at high resolution. By taking advantage of differential absorption of x-ray photons in regions of varying elemental composition, and using a high brightness, tuneable synchrotron source to obtain monochromatic x-rays, contact x-ray micrographs can be made of unfixed, intact endospores that reveal sites of elemental localization. This study presents new data demonstrating the application of x-ray absorption edge imaging to produce elemental information about nitrogen (N) and calcium (Ca) localization using Bacillus thuringiensis as the test specimen.

Reflectivity spectra of Eu rich EuO near the absorption edge

1979 ◽  
Vol 40 (3) ◽  
pp. 315-319 ◽  
Author(s):  
M. Escorne ◽  
A. Mauger ◽  
C. Godart ◽  
J.C. Achard
Keyword(s):  
Absorption Edge ◽  
Reflectivity Spectra

Scattering Rings in Birefringent Porous Silicon

2003 ◽  
Vol 762 ◽  
Author(s):  
Claudio J. Oton ◽  
Zeno Gaburro ◽  
Mher Ghulinyan ◽  
Nicola Daldosso ◽  
Lucio Pancheri ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Light Scattering ◽  
Porous Silicon ◽  
Direct Measurement ◽  
Optical Anisotropy ◽  
Oblique Incidence ◽  
Laser Light ◽  
Anisotropic Scattering ◽  
Scattering Measurements

AbstractWe report the observation of strongly anisotropic scattering of laser light at oblique incidence on (100)-oriented porous silicon layers. We performed angle-resolved light scattering measurements and three concentric rings were observed. Modeling porous silicon by means of nanometric columnar air pores and an effective anisotropic uniaxial dielectric constant explains the observed phenomenon, and besides, the observation of the angle aperture of these rings allows a direct measurement of relative birefringence. We finally study the changes of optical anisotropy after different modifications of the structure.

OPTICAL ABSORPTION EDGE INVESTIGATIONS IN Sn2P2S6 AND SnP2S6 CRYSTALS

2000 ◽  
Vol 6 (0) ◽  
pp. 32-39
Author(s):  
І. П. Студеняк ◽  
В. В. Митровцій ◽  
Д. Ш. Ковач ◽  
О. А. Микайло ◽  
М. І. Гурзан ◽  
...  
Keyword(s):  
Optical Absorption ◽  
Absorption Edge ◽  
Optical Absorption Edge

Effect of growth conditions upon the phase transition and optical absorption edge in CuInP2S6 crystals

1999 ◽  
Vol 4 (0) ◽  
pp. 131-138
Author(s):  
І. П. Студеняк ◽  
Д. Ш. Ковач ◽  
В. В. Митровцій ◽  
М. І. Гурзан ◽  
О. А. Микайло ◽  
...  
Keyword(s):  
Phase Transition ◽  
Optical Absorption ◽  
Absorption Edge ◽  
Growth Conditions ◽  
Optical Absorption Edge
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