ELECTRO‐OPTIC [KTaxNb1−xO3(KTN)] GRATINGS FOR LIGHT BEAM MODULATION AND DEFLECTION

1964 ◽  
Vol 5 (9) ◽  
pp. 181-182 ◽  
Author(s):  
M. G. Cohen ◽  
E. I. Gordon
Keyword(s):  
Light Beam ◽  
Beam Modulation ◽  
Electro Optic

DUAL LIGHT BEAM MODULATION OF PHOTOCARRIER LIFETIME IN INTRINSIC a-Si:H

1981 ◽  
Vol 42 (C4) ◽  
pp. C4-597-C4-600 ◽  
Author(s):  
P. D. Persans ◽  
H. Fritzsche
Keyword(s):  
Light Beam ◽  
Beam Modulation

scholarly journals Tunable lateral shift and polarization beam splitting of the transmitted light beam through electro-optic crystals

2008 ◽  
Vol 104 (12) ◽  
pp. 123101 ◽  
Author(s):  
Xi Chen ◽  
Ming Shen ◽  
Zhen-Fu Zhang ◽  
Chun-Fang Li
Keyword(s):  
Light Beam ◽  
Lateral Shift ◽  
Transmitted Light ◽  
Beam Splitting ◽  
Electro Optic

Correction to "Electro-optic light beam deflector"

1964 ◽  
Vol 52 (7) ◽  
pp. 862-862 ◽  
Author(s):  
V.J. Fowler ◽  
C.F. Buhrer ◽  
L.R. Bloom
Keyword(s):  
Light Beam ◽  
Electro Optic

scholarly journals Precise Method for Measuring the Quadratic Electro-Optic Effect in Noncentrosymmetric Crystals in the Presence of Natural Birefringence

Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 3942
Author(s):  
Marek Izdebski ◽  
Rafał Ledzion ◽  
Włodzimierz Kucharczyk
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Light Beam ◽  
Phase Transition Temperature ◽  
Optical Axis ◽  
Quadratic Effect ◽  
Precise Method ◽  
Linear Effect ◽  
Electro Optic ◽  
Adp Crystal

The application of the improved dynamic polarimetric method for the measurement of the quadratic electro-optic effect in NH4H2PO4 (ADP) crystal with the light beam propagating perpendicularly to its optical axis is presented. This technique can be applied in noncetrosymmetric crystals in the presence of natural birefringence even when the fast and slow rays diverge slightly, causing them to only partially interfere. The method allows for minor errors in cutting and orientation of the crystal samples, resulting in deviations from configurations in which the crystal symmetry vetoes the linear electro-optic effect. The occurring contribution of the linear effect, if it is not too large, not only does not exclude the measurement of the quadratic effect, but increases its accuracy. The method does not require any prior compensation for the natural birefringence. Its sensitivity allows for quadratic electro-optic effect measurements in ferroelectrics in temperatures significantly different from the phase transition temperature or in paraelectric crystals, for which this effect is relatively small.

An electro-optic light-beam deflector

1966 ◽  
Author(s):  
W.P. Brown ◽  
J.E. Kiefer ◽  
J.F. Lotspeich ◽  
H.R. Senf
Keyword(s):  
Light Beam ◽  
Electro Optic

scholarly journals Monochromatic Depolarizer Based on Liquid Crystal

Crystals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 387 ◽  
Author(s):  
Paweł Marć ◽  
Noureddine Bennis ◽  
Anna Spadło ◽  
Aleksandra Kalbarczyk ◽  
Rafał Węgłowski ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Light Beam ◽  
Optical Measurements ◽  
Degree Of Polarization ◽  
Optical Elements ◽  
Electro Optic ◽  
Spatial And Temporal Changes ◽  
Time Domains ◽  
Vertically Aligned ◽  
Set Up

Polarization is a very useful parameter of a light beam in many optical measurements. Improvement of holographic systems requires optical elements which need a diffused and depolarized light beam. This paper describes a simple monochromatic depolarizer based on a pure vertically aligned liquid crystal without pretilt. In this work we present an extended description of depolarizer by analyzing its electro-optic properties measured in spatial and time domains with the use of crossed polarizers and polarimetric configurations. Crossed polarizers set-up provides information on spatial and temporal changes of microscopic textures while polarimetric measurement allows to measure voltage and time dependence of degree of polarization. Three different thicknesses, i.e., 5 μm, 10 μm and 15 μm have been manufactured in order to analyze another degree of freedom for this type of depolarizer device based on a liquid crystals’ material. Consideration of the light scattering capability of the cell is reported.

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