Progress towards fundamental symmetry tests with nonlinear optical rotation

2001 ◽  
Author(s):  
D. F. Kimball
Keyword(s):  
Nonlinear Optical ◽  
Optical Rotation ◽  
Fundamental Symmetry ◽  
Symmetry Tests

scholarly journals Twins in YAl3(BO3)4 and K2Al2B2O7 Crystals as Revealed by Changes in Optical Activity

Crystals ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 8 ◽  
Author(s):  
Johannes Buchen ◽  
Volker Wesemann ◽  
Steffen Dehmelt ◽  
Andreas Gross ◽  
Daniel Rytz
Keyword(s):  
Optical Properties ◽  
Optical Activity ◽  
Nonlinear Optical ◽  
Frequency Conversion ◽  
Optical Rotation ◽  
Visible Spectrum ◽  
Rotatory Power ◽  
Nonlinear Optical Properties ◽  
Crystal Quality ◽  
Optical Rotatory Dispersion

Many borate crystals feature nonlinear optical properties that allow for efficient frequency conversion of common lasers down into the ultraviolet spectrum. Twinning may degrade crystal quality and affect nonlinear optical properties, in particular if crystals are composed of twin domains with opposing polarities. Here, we use measurements of optical activity to demonstrate the existence of inversion twins within single crystals of YAl 3 (BO 3 ) 4 (YAB) and K 2 Al 2 B 2 O 7 (KABO). We determine the optical rotatory dispersion of YAB and KABO throughout the visible spectrum using a spectrophotometer with rotatable polarizers. Space-resolved measurements of the optical rotation can be related to the twin structure and give estimates on the extent of twinning. The reported dispersion relations for the rotatory power of YAB and KABO may be used to assess crystal quality and to select twin-free specimens.

scholarly journals Antihydrogen accumulation for fundamental symmetry tests

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
M. Ahmadi ◽  
B. X. R. Alves ◽  
C. J. Baker ◽  
W. Bertsche ◽  
E. Butler ◽  
...  
Keyword(s):  
Fundamental Symmetry ◽  
Symmetry Tests

Nuclear Structure Studied with Direct Reactions for Fundamental Symmetry Tests

2018 ◽  
Vol 49 (3) ◽  
pp. 229
Author(s):  
P.E. Garrett ◽  
K.G. Leach ◽  
A.D. MacLean ◽  
G.C. Ball ◽  
P.C. Bender ◽  
...  
Keyword(s):  
Nuclear Structure ◽  
Fundamental Symmetry ◽  
Direct Reactions ◽  
Symmetry Tests

CLUSTERIZATION OF FULLERENE C70 MOLECULES IN SOLUTIONS AND ITS INFLUENCE TO OPTICAL AND NONLINEAR OPTICAL PROPERTIES OF SOLUTIONS

2013 ◽  
Vol 12 (04) ◽  
pp. 1350027 ◽  
Author(s):  
A. M. KOKHKHAROV ◽  
E. A. ZAKHIDOV ◽  
SH. P. GOFUROV ◽  
S. A. BAKHRAMOV ◽  
U. K. MAKHMANOV
Keyword(s):  
Nonlinear Optical ◽  
Volume Fraction ◽  
Electronic Absorption Spectra ◽  
Optical Rotation ◽  
Laser Pulses ◽  
Solvent Mixture ◽  
Nonlinear Susceptibility ◽  
Transmission Electron ◽  
Benzene Toluene ◽  
Kerr Coefficient

Nonlinear optical rotation of elliptically polarized laser pulses (λ = 532 nm, τFWHM ~ 12 ns) in benzene, toluene and binary (toluene+acetonitrile) solutions of fullerene C 70–D5h(6) has been investigated experimentally. High-resolution transmission electron microscope studies of C 70-solutions showed stable ball-shaped C 70-clusters formation in toluene+acetonitrile mixtures. It has been demonstrated, that the C 70-clusters sizes depend on initial concentration of C 70, as well as volume fraction of acetonitrile in solvent mixture. The most probable model of C 70-clusterization in solutions was proposed. Correlations between the processes of nonlinear rotation of polarization ellipse, change of electronic absorption spectra and C 70-clusters formation in solutions have been demonstrated. Physical mechanisms of laser-induced optical activity in C 70-solutions have been discussed. The values of the nonlinear Kerr coefficient (n2) and nonlinear susceptibility component [Formula: see text] of C 70-solutions in: toluene, benzene with various polarization ellipticity (θ = 0.2-0.8), and toluene+acetonitrile at different concentrations of C 70 for various volume fractions of acetonitrile have been determined.

scholarly journals Designer Molecules for Fundamental-Symmetry Tests

Physics ◽  
2021 ◽  
Vol 14 ◽  
Author(s):  
Ronald F. Garcia Ruiz
Keyword(s):  
Fundamental Symmetry ◽  
Symmetry Tests
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