The Influence of Reconstruction-Wave Polarization and Circular Dichroism on Diffraction Efficiency of a Reflection Hologram Recorded in a Cubic Optically Active Photorefractive Absorbing Piezoelectric Crystal

2021 ◽  
Vol 129 (1) ◽  
pp. 84-92
Author(s):  
V. N. Naunyka ◽  
V. V. Shepelevich ◽  
S. M. Shandarov
Keyword(s):  
Circular Dichroism ◽  
Diffraction Efficiency ◽  
Optically Active ◽  
Wave Polarization ◽  
Piezoelectric Crystal ◽  
Reflection Hologram ◽  
Circular Dichroïsm

scholarly journals Влияние поляризации считывающей волны и циркулярного дихроизма на дифракционную эффективность отражательной голограммы в кубическом оптически активном фоторефрактивном поглощающем пьезокристалле

2021 ◽  
Vol 129 (1) ◽  
pp. 66
Author(s):  
В.Н. Навныко ◽  
В.В. Шепелевич ◽  
С.М. Шандаров
Keyword(s):  
Circular Dichroism ◽  
Diffraction Efficiency ◽  
Polarized Light ◽  
Crystal Thickness ◽  
Light Waves ◽  
Linearly Polarized ◽  
Reflection Hologram ◽  
Phase Amplitude ◽  
Circular Dichroïsm ◽  
Phase Reflection

In the approximation of slowly varying amplitudes, a system of coupled waves equations is obtained, which is applicable for describing the diffraction and coupling of elliptically polarized light waves on a volume phase-amplitude holographic grating formed in a cubic optically active photorefractive absorbing piezoelectric crystal. The dependence of the diffraction efficiency of the phase reflection hologram on the ellipticity of the readout wave and the thickness of the Bi12SiO20 crystal of the (001) and (111) cuts was studied. The regularities of the effect of circular dichroism on the diffraction efficiency of the phase reflection hologram are analyzed. It is shown that for crystal of (001)-cut the maximum diffraction efficiency of the reflection hologram depending on the crystal thickness can be achieved using a readout wave both with linear polarization and with elliptical polarization. For crystal of (111)-cut the highest diffraction efficiency is achieved using a linearly polarized readout wave. It has been established that the effect of circular dichroism on the intensity of the reconstructed wave depends on the cut of the crystal, the ellipticity of the readout wave and the thickness of the crystal.

New Approach to the Theory of Circular Dichroism

1998 ◽  
Vol 63 (8) ◽  
pp. 1187-1201 ◽  
Author(s):  
Jaroslav Zamastil ◽  
Lubomír Skála ◽  
Petr Pančoška ◽  
Oldřich Bílek
Keyword(s):  
Electromagnetic Wave ◽  
Circular Dichroism ◽  
Electromagnetic Waves ◽  
Maxwell Equations ◽  
Optically Active ◽  
Semiclassical Approach ◽  
New Approach ◽  
Isotropic Media ◽  
New Formula ◽  
Circular Dichroïsm

Using the semiclassical approach for the description of the propagation of the electromagnetic waves in optically active isotropic media we derive a new formula for the circular dichroism parameter. The theory is based on the idea of the time damped electromagnetic wave interacting with the molecules of the sample. In this theory, the Lambert-Beer law need not be taken as an empirical law, however, it follows naturally from the requirement that the electromagnetic wave obeys the Maxwell equations.

First optically active ferricinium salts: A circular dichroism study

1992 ◽  
Vol 438 (3) ◽  
pp. C26-C28 ◽  
Author(s):  
Viatcheslav I. Sokolov ◽  
Irina A. Mamedyarova ◽  
Marina N. Nefedova ◽  
Günther Snatzke
Keyword(s):  
Circular Dichroism ◽  
Optically Active ◽  
Circular Dichroïsm

Circulardichroismusuntersuchungen von Polyalkohol- und Zucker-Vanadat(V)-Komplexen / Circular Dichroism Studies of Polyalcohol and Sugar Vanadate(V) Complexes

1989 ◽  
Vol 44 (11) ◽  
pp. 1464-1472 ◽  
Author(s):  
Hermann Bauer ◽  
Jeanine Brun ◽  
Alexius R. Hernanto ◽  
Wolfgang Voelter ◽  
Spyridon Paraskewas
Keyword(s):  
Circular Dichroism ◽  
Wavelength Range ◽  
Optically Active ◽  
Hydroxyl Groups ◽  
Pyranose Ring ◽  
Cotton Effects ◽  
Circular Dichroïsm

The complexes of tetravanadate ions with optically active polyols and carbohydrates with suitable steric properties show up to four separate cotton effects in the wavelength range of λ = 200-350 nm. Thus it is possible to classify pyranoses into four groups according to their circular dichroitic behaviour and determine the configuration and the conformation of the hydroxyl groups attached to the pyranose ring.

Optically Active Ultrafine Au–Ag Alloy Nanoparticles Used for Colorimetric Chiral Recognition and Circular Dichroism Sensing of Enantiomers

2017 ◽  
Vol 89 (18) ◽  
pp. 9781-9787 ◽  
Author(s):  
Jianjia Wei ◽  
Yanjia Guo ◽  
Jizhou Li ◽  
Mengke Yuan ◽  
Tengfei Long ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Chiral Recognition ◽  
Optically Active ◽  
Alloy Nanoparticles ◽  
Circular Dichroïsm
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