Energy transfer between laser beams due to recording of optical axis gratings in liquid crystals

2006 ◽  
Vol 23 (10) ◽  
pp. 2113 ◽  
Author(s):  
Sarik R. Nersisyan ◽  
Nelson V. Tabiryan ◽  
C. Martin Stickley
Keyword(s):  
Energy Transfer ◽  
Liquid Crystals ◽  
Optical Axis ◽  
Laser Beams

A Review of the Theory and Application of Coherent Anti-Stokes Raman Spectroscopy (CARS)

1977 ◽  
Vol 31 (4) ◽  
pp. 253-271 ◽  
Author(s):  
W. M. Tolles ◽  
J. W. Nibler ◽  
J. R. McDonald ◽  
A. B. Harvey
Keyword(s):  
Raman Spectroscopy ◽  
Energy Transfer ◽  
Atmospheric Chemistry ◽  
Reaction Dynamics ◽  
Fluctuation Phenomena ◽  
Laser Beams ◽  
Nonlinear Conversion ◽  
Future Direction ◽  
Anti Stokes ◽  
Raman Beam

Coherent anti-Stokes Raman spectroscopy (CARS) is a relatively new kind of Raman spectroscopy which is based on a nonlinear conversion of two laser beams into a coherent, laser-like Raman beam of high intensity in the anti-Stokes region. The emission is often many orders of magnitude greater than normal Raman scattering and, because of the coherent and anti-Stokes character of radiation, the method is very useful for obtaining Raman spectra of fluorescing samples, gases in discharges, plasmas, combustion, atmospheric chemistry. In this paper we outline the basic theory behind CARS and describe its unusual effects and drawbacks. We review the research to date on various materials, and indicate the possible future direction, utility and applications of CARS such as surface studies, fluctuation phenomena, reaction dynamics, photochemistry, kinetics, relaxation, and energy transfer.

Filamentation and Undulation of Self-Focused Laser Beams in Liquid Crystals

1993 ◽  
Vol 23 (4) ◽  
pp. 239-244 ◽  
Author(s):  
E Braun ◽  
L. P Faucheux ◽  
A Libchaber ◽  
D. W McLaughlin ◽  
D. J Muraki ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Laser Beams ◽  
Focused Laser Beams

scholarly journals Saturation of cross-beam energy transfer for multispeckled laser beams involving both ion and electron dynamics

2019 ◽  
Vol 26 (8) ◽  
pp. 082708 ◽  
Author(s):  
L. Yin ◽  
B. J. Albright ◽  
D. J. Stark ◽  
W. D. Nystrom ◽  
R. F. Bird ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Beam Energy ◽  
Laser Beams ◽  
Electron Dynamics

Energy transfer between two crossed laser beams in a nonisothermal plasma

2011 ◽  
Vol 18 (2) ◽  
pp. 023108
Author(s):  
Deepak Tripathi ◽  
R. Uma ◽  
V. K. Tripathi
Keyword(s):  
Energy Transfer ◽  
Laser Beams ◽  
Nonisothermal Plasma

scholarly journals Observation of resonant energy transfer between identical-frequency laser beams

1999 ◽  
Vol 6 (5) ◽  
pp. 2144-2149 ◽  
Author(s):  
K. B. Wharton ◽  
R. K. Kirkwood ◽  
S. H. Glenzer ◽  
K. G. Estabrook ◽  
B. B. Afeyan ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Laser Beams ◽  
Resonant Energy ◽  
Resonant Energy Transfer ◽  
Frequency Laser

Observation of Energy Transfer between Frequency-Mismatched Laser Beams in a Large-Scale Plasma

1996 ◽  
Vol 76 (12) ◽  
pp. 2065-2068 ◽  
Author(s):  
R. K. Kirkwood ◽  
B. B. Afeyan ◽  
W. L. Kruer ◽  
B. J. MacGowan ◽  
J. D. Moody ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Large Scale ◽  
Laser Beams

Observation of Energy Transfer between Identical-Frequency Laser Beams in a Flowing Plasma

1998 ◽  
Vol 81 (11) ◽  
pp. 2248-2251 ◽  
Author(s):  
K. B. Wharton ◽  
R. K. Kirkwood ◽  
S. H. Glenzer ◽  
K. G. Estabrook ◽  
B. B. Afeyan ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Laser Beams ◽  
Flowing Plasma ◽  
Frequency Laser

scholarly journals Asymmetric hypergeometric laser beams

2019 ◽  
Vol 43 (5) ◽  
pp. 735-740
Author(s):  
V.V. Kotlyar ◽  
A.A. Kovalev ◽  
E.G. Abramochkin
Keyword(s):  
Exact Solution ◽  
Angular Momentum ◽  
Hypergeometric Function ◽  
Orbital Angular Momentum ◽  
Topological Charge ◽  
Optical Axis ◽  
Type Equation ◽  
Laser Beams ◽  
Propagation Equation ◽  
Degenerate Hypergeometric Function

Here we study asymmetric Kummer beams (aK-beams) with their scalar complex amplitude being proportional to the Kummer function (a degenerate hypergeometric function). These beams are an exact solution of the paraxial propagation equation (Schrödinger-type equation) and obtained from the conventional symmetric hypergeometric beams by a complex shift of the transverse coordinates. On propagation, the aK-beams change their intensity weakly and rotate around the optical axis. These beams are an example of vortex laser beams with a fractional orbital angular momentum (OAM), which depends on four parameters: the vortex topological charge, the shift magnitude, the logarithmic axicon parameter and the degree of the radial factor. Changing these parameters, it is possible to control the beam OAM, either continuously increasing or decreasing it.

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