Showing papers on "Polarization rotator published in 1971"
TL;DR: In this article, a Nd: YAG laser has been operated under strong thermal focusing and birefringent conditions and has yielded both linearly polarized output with negligible power loss and TEM00 output of 50-70% of the multimode power.
Abstract: A Nd: YAG laser has been operated under strong thermal focusing and birefringent conditions and has yielded both linearly polarized output with negligible power loss and TEM00 output of 50–70% of the multimode power. The laser consisted of two Nd: YAG rods separated by a 90° crystal quartz polarization rotator together with a convex mirror and used no special cooling techniques. The performance of this laser, which agreed with theoretical predictions, indicates that this design approach may be generally applicable to the problem of thermally induced aberrations in such systems.
153 citations
TL;DR: The lowest order combined effects of wave vector (spatial dispersion) and applied magnetic fields on the propagation of light in cubic crystals and along the optic axis of uniaxial crystals are investigated phenomenologically as mentioned in this paper.
60 citations
TL;DR: It has been experimentally demonstrated that a velocity gradient in a gas of linear molecules gives rise to birefringence caused by a partial alignment of the angular momenta of the molecules (tensor polarization).
46 citations
Patent•
19 May 1971
TL;DR: In this article, a birefringence polarizer divides incident light into two mutually perpendicularly polarized beams, and a rotatable half-wave retardation plate in the path of one of the emergent beams controls its azimuth of polarization.
Abstract: A birefringence polarizer divides incident light into two emergent, mutually perpendicularly polarized beams. The incident light is linearly polarized, its azimuth of polarization being rotatable by a rotatable half-wave retardation plate. A similar plate in the path of one of the emergent beams controls its azimuth of polarization. The emergent light beams are thus controllable as to relative intensity and directions of polarization.
17 citations
TL;DR: In this paper, the liquid crystal orientation technique has been used to determine the polarization of the emission from complexes formed in the excited state, and the experimental results agree with theoretical predictions made for hetero-excimers with appreciable admixture of locally excited states.
11 citations
10 citations
TL;DR: In this article, it is shown that if the incident electron beam has a polarization component perpendicular to that of the target, then the former is rotated about the direction of target polarization in a manner analogous to the Faraday rotation of optical polarization.
Abstract: Electron-atom spin exchange collision is described in terms of Stokes parameters. It is shown that if the incident electron beam has a polarization component perpendicular to that of the target then the former is rotated about the direction of the target polarization in a manner analogous to the Faraday rotation of optical polarization. The angle of rotation depends mainly on the phase shift between the triplet and singlet scattering amplitudes. It is pointed out that the electron spin rotation occurring in Mott is analogous to the rotation of the plane of polarization of light by media of natural activity.
8 citations
TL;DR: In this paper, an in-line eight-stage digital light deflector is described, which is similar to a birefringence-compensated transverse modular, with a practical angular aperture of 10°.
Abstract: An in-line eight-stage digital light deflector is described. The polarization switch is similar to a birefringence-compensated transverse modular, which has a practical angular aperture of 10°. The birefringent elements are single prisms.
6 citations
6 citations
TL;DR: In this article, the angular distribution of the scattered radiation for the perpendicular polarization, parallel polarization, polarization ratio, polarization, ellipticity and plane of polarization of the polarization ellipse were calculated for a Deirmendjian cloud model Cl for wavelengths of 2.90 μ, 3.10 μ, 6.05 μ, 13 μ and 20 μ incident plane-polarized radiation.
Abstract: Ice and liquid water phase clouds can be distinguished by the measurement of angular distribution of various polarization parameters at wavelengths for which there is a marked difference in the indices of refraction for the two phases. Mie single scattering theory calculations were made for a Deirmendjian cloud model Cl for wavelengths of 2.90 μ, 3.10 μ, 6.05 μ, 13 μ and 20 μ incident plane-polarized radiation. Plots of the angular distribution of the scattered radiation for the perpendicular polarization, parallel polarization, polarization ratio, polarization, ellipticity and plane of polarization of the polarization ellipse show marked differences in the scattering by ice and water clouds.
6 citations
TL;DR: In this article, the influence of an electric field on the yellow series of oriented single crystals of Cu2O has been studied in polarized light at 4.2°K using a modulation technique.
TL;DR: In this paper, the geometrical aspects of the transfer of polarization are treated in terms of classical tensors: a coherency tensor is used to describe the radiation field and an ensemble polarization tensor was introduced for the system of atoms.
Abstract: The geometrical aspects of the transfer of polarization are treated in terms of classical tensors: a coherency tensor is used to describe the radiation field and an ensemble polarization tensor is introduced for the system of atoms. Independent of the rotation symmetry of the cell, the evolution equation for the ensemble polarization tensor is found to separate into two parts, the first accounting for the linear polarization properties, and the second accounting for the circular polarization properties. Attention is focused on the latter; the standard result for the decay of orientation is obtained for a spherical cell, and the decay of the orientation for a cell with arbitrary rotation symmetry is found to be characterized in general by three different decay constants.
TL;DR: A passive optical device is described which produces a plane polarized transmitted beam, proportional in intensity to the incidentbeam and independent of the polarization of the incident beam.
Abstract: A passive optical device is described which produces a plane polarized transmitted beam, proportional in intensity to the incident beam and independent of the polarization of the incident beam. The transmitted beam is always attenuated by a factor of
12, and the device works equally well with monochromatic or white light. A mathematical model using Jones matrices is given, and experimental data are presented to support the model. Use of the device in the absolute calibration of polarization sensitive monochromators and in the determination of absolute atomic cross sections is also discussed.
TL;DR: In this article, the polarization properties of active resonators were investigated for the case of small ellipticity of mode polarization and the ellipticity and the azimuth of the major axis of the mode polarization ellipse were computed for different anisotropic reflectances of the reflecting mirrors as a function of the saturation-induced anisotropy.