Results 251 to 260 of about 54,067 (294)

Polarization plane's weak rotation amplifiers and polarization azimuth stabilizers

Optik, 2006
A simple and effective method to measure an electromagnetic wave polarization plane's weak rotations in various media is proposed. The specific features of the polarization plane's rotation amplification for the light reflection and transmission through the absorbing and amplifying isotropic layers are calculated.
A.H. Gevorgyan, A.A. Grigoryan, A.Zh. Khachatrian, A. Kocharian, L.O. Mikhaelyan, A.M. Sedrakyan, G.A. Vardanyan   +6 more
openaire   +1 more source

Polarization plane's weak rotation amplifiers and polarization azimuth stabiliziers

SPIE Proceedings, 2005
A simple and effective method to measure an electromagnetic wave polarization plane's weak rotations in various media is proposed. The specific features of the polarization plane’s rotation amplification (PPRA) for the light reflection and transmission through the absorbing and amplifying anisotropic layers are calculated.
G. A. Vardanyan, A. H. Gevorgyan, A. Kocharian, Zh. B. Khachatryan, S. A. Mkhitaryan   +4 more
openaire   +1 more source

Radially and azimuthally polarized vortices in uniaxial crystals

Optics Communications, 2003
The propagation of the radial and azimuthal components of a paraxial beam along the optical axis of a uniaxially anisotropic crystal is investigated, deriving the paraxial wave equations and solving the associated boundary value problem. As a particular case, we obtain the propagation equations of optical vortices and give an integral representation of
Cincotti G, Ciattoni A, SAPIA, Carmine
openaire   +3 more sources

Production of radially and azimuthally polarized polychromatic beams

Optics Letters, 2006
We describe a system that efficiently provides radially or azimuthally polarized radiation from a randomly polarized source. It is constructed from two conical reflectors and a cylindrical sheet of polarizing film. Envisaged applications include a microscope illuminator for high-resolution surface plasmon resonance microscopy, illumination for high ...
A, Shoham, R, Vander, S G, Lipson
openaire   +2 more sources

Azimuthally and radially polarized light in conical diffraction

Optics Letters, 2014
Azimuthal and radial polarization states of light are used to produce conical diffraction (CD) from a KGd(WO4)2 crystal. The patterns produced in the ring plane in each case display marked differences than those seen when linearly polarized incident light is used, with the production of a splitting of the CD ring into two concentric rings of equal ...
Grant, Stephen D., Zolotovskaya, Svetlana, Gillespie, W. Allan, Kalkandjiev, Todor K., Abdolvand, Amin   +4 more
openaire   +3 more sources

Radially and azimuthally polarized non paraxial Bessel beams

2013 Conference on Lasers and Electro-Optics Pacific Rim (CLEOPR), 2013
We present a method for the realization of cylindrically polarized non-paraxial beams by constructing exact vector solutions of Maxwell's equations from scalar Bessel beams and combining them together by analogy with the paraxial case.
Ornigotti, M., Aiello, A.
openaire   +2 more sources

Cholesteric liquid crystals with tunable defect inside as polarization azimuth rotation amplifiers and polarization azimuth stabilizers

Optik, 2012
Abstract In the present paper, we investigate the polarization properties of the cholesteric liquid crystals (CLCs) with an isotropic/anisotropic defect inside them, and possibilities of amplification of the polarization plane rotation and stabilization of the light polarization azimuth by these systems are investigated.
A.H. Gevorgyan, M.Z. Harutyunyan, K.B. Oganesyan, M.S. Rafayelyan   +3 more
openaire   +1 more source

Generation of azimuthally and radially polarized beams by coherent polarization beam combination

Optics Letters, 2012
A new architecture for generating pure azimuthally and radially polarized beams is presented. It involves coherent polarization beam combination of two orthogonally polarized LP(11) fiber modes. Experimental results reveal that high purely polarized (polarization purity of 95% or better) azimuthal and radial beams can be generated.
Pengfei, Ma, Pu, Zhou, Yanxing, Ma, Xiaolin, Wang, Rongtao, Su, Zejin, Liu   +5 more
openaire   +2 more sources

Polarization azimuth angle in daylight scenes

Optical Engineering, 2005
Lord Rayleigh derived the degree of polarization for singular molecular scattering phenomena in the atmosphere as a function of the relative angular orientations of the source, scattering center, and observer. This paper extends the Rayleigh model by giving the azimuth angle for the linearly polarized scattered radiation detected by the observer ...
openaire   +1 more source

Superbroadband full azimuth coverage polarization surveying array

IEEE Antennas and Propagation Society International Symposium. 1995 Digest, 2002
An array which can measure the polarization of the incoming wave is provided. This array can operate over a very wide bandwidth with full azimuth coverage. This is very useful in some applications, especially in the application of electronic countermeasures.
null Liang Tiesheng, null Feng Yan
openaire   +1 more source