Applications of a holographic system with mutually incoherent polarized light beams

2004 ◽  
Author(s):  
Salvador Guel-Sandoval ◽  
L. R. Berriel-Valdos ◽  
A. V. Zamora-Gomez
Keyword(s):  
Polarized Light ◽  
Light Beams

scholarly journals Radially polarized light beams from spin-forbidden dark excitons and trions in monolayer WSe2

2020 ◽  
Vol 10 (5) ◽  
pp. 1273
Author(s):  
Sven Borghardt ◽  
Jens Sonntag ◽  
Jhih-Sian Tu ◽  
Takashi Taniguchi ◽  
Kenji Watanabe ◽  
...  
Keyword(s):  
Polarized Light ◽  
Light Beams ◽  
Radially Polarized ◽  
Radially Polarized Light

Self-focusing of two orthogonally polarized light beams in a nonlinear medium

1993 ◽  
Vol 25 (2) ◽  
pp. 97-104 ◽  
Author(s):  
A. M. Goncharenko ◽  
V. G. Kukushkin ◽  
Yu. A. Logvin ◽  
A. M. Samson
Keyword(s):  
Nonlinear Medium ◽  
Polarized Light ◽  
Self Focusing ◽  
Light Beams

scholarly journals Thin Light Tube Formation by Tightly Focused Azimuthally Polarized Light Beams

ISRN Optics ◽  
2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Svetlana N. Khonina ◽  
Andrey V. Ustinov
Keyword(s):  
Numerical Aperture ◽  
Polarized Light ◽  
Transmission Function ◽  
Tube Formation ◽  
Destructive Interference ◽  
Circular Aperture ◽  
Theoretical And Numerical Analysis ◽  
Diffractive Axicon ◽  
Aperture Diffraction ◽  
Light Beams

Theoretical and numerical analysis of the transmission function of the focusing system with high numerical aperture was conducted. The purpose of the study was to form a thin light tube in a focal area using the azimuthally polarized radiation. It was analytically shown that, due to destructive interference of two beams formed by two narrow rings, it is possible to overcome not only the full aperture diffraction limit but also the circular aperture limit. In this case, however, the intensity at the center of the focal plane is significantly reduced, which practically leads to the tube rupture. It was numerically shown that long thin one-piece tubes may be formed through the aperture apodization with diffractive axicon phase function or with complex transmission function of Laguerre-Gaussian or Airy-Gaussian beams.

Production of arbitrary polarized light beams with a liquid crystal spatial modulator

2016 ◽  
Author(s):  
Ignacio Moreno ◽  
Maria M. Sánchez-López ◽  
Jeffrey A. Davis ◽  
Katherine Badham ◽  
Don M. Cottrell
Keyword(s):  
Liquid Crystal ◽  
Polarized Light ◽  
Light Beams

SPATIAL SEPARATION OF POLARIZATION COMPONENTS BY NONLINEAR BEAM RESHAPING IN A J=1 TO J=0 MEDIUM

1992 ◽  
Vol 01 (02) ◽  
pp. 393-420 ◽  
Author(s):  
R.J. BALLAGH ◽  
A.W. McCORD
Keyword(s):  
Optical Pumping ◽  
Polarized Light ◽  
Spatial Separation ◽  
Longitudinal Optical ◽  
Zero Field ◽  
Nonlinear Beam ◽  
Circularly Polarized Light ◽  
Polarized Beam ◽  
Light Beams ◽  
Elliptically Polarized

The diffractive reshaping that circularly polarized light beams undergo when coupled in a medium of homogenously broadened J=1→J=0 atoms is shown to be sensitively dependent on applied magnetic fields. In zero field, an elliptically polarized beam will retain its polarization everywhere in space, but a small longitudinal magnetic field can cause the beam to break up into spatially distinct regions of pure circular polarization. The beam behavior can be understood in terms of an encoding/diffraction sequence. An analytic solution for the atomic response function reveals the important roles played by transverse and longitudinal optical pumping.

scholarly journals Non-orthogonal polarization multiplexed metasurfaces for tri-channel polychromatic image displays and information encryption

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Renyuan Ren ◽  
Zile Li ◽  
Liangui Deng ◽  
Xin Shan ◽  
Qi Dai ◽  
...  
Keyword(s):  
Polarized Light ◽  
Orthogonal Polarization ◽  
Image Encoding ◽  
Information Encoding ◽  
Independent Information ◽  
Linearly Polarized ◽  
Image Displays ◽  
Polarization States ◽  
Light Beams ◽  
Channel Image

Abstract Interference usually occurs between two non-orthogonally polarized light beams. Hence, metasurface enabled polarization multiplexing is generally conducted under two orthogonal polarization states to realize independent intensity and/or phase modulations. Herein, we show that polarization multiplexed metasurfaces can work under three non-orthogonal polarization states to realize tri-channel image displays with independent information encoding. Specifically, enabled by orientation degeneracy, each nanostructure of the metasurface operates with triple-manipulations of light, i.e., two channels for independent intensity manipulation under π/4 and 3π/8 linearly polarized (LP) light, respectively, and one channel for phase manipulation without polarization control. We experimentally demonstrate this concept by recording one continuous-brightness polychromatic image and one binary-brightness polychromatic image right at the metasurface plane, while a continuous-brightness polychromatic image is reconstructed in the far field, corresponding to three independent channels, respectively. More interestingly, in another design strategy with separated image encoding of two wavelengths, up to six independent image-display channels can be established and information delivery becomes safer by utilizing encryption algorithms. With the features of high information capacity and high security, the proposed meta-devices can empower advanced research and applications in multi-channel image displays, orbital angular momentum multiplexing communication, information encryption, anti-counterfeiting, multifunctional integrated nano-optoelectronics, etc.

scholarly journals A NOTE ON THE RELATIVE PHOTOSENSORY EFFECT OF POLARIZED LIGHT

1924 ◽  
Vol 6 (6) ◽  
pp. 703-709 ◽  
Author(s):  
W. J. Crozier ◽  
A. F. Mangelsdorf
Keyword(s):  
Polarized Light ◽  
Qualitative Effect ◽  
Light Beams

Experiments were made to compare the stimulating effectiveness of vertically and horizontally polarized lights and non-polarized lights of equal intensity upon phototropic movements of the beetle Tetraopes tetraopthalmus; and to compare the effectiveness of two light beams polarized at right angles to one another upon phototropic orientation of the land isopod Cylisticus convexus. Tetraopes is positively, and Cylisticus, negatively phototropic. Tests were also made of the intensities of horizontally and of vertically polarized light required to inhibit stereotropism in larvæ of Tenebrio. Under the conditions of the tests, no certain qualitative effect connected with polarization could be detected.

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