A Broadband Linearly Polarized Beam-splitter

2019 ◽  
Author(s):  
M. S. Wahidi ◽  
Meraj-E-Mustafa ◽  
Ramiz Izhar ◽  
Farooq A. Tahir
Keyword(s):  
Beam Splitter ◽  
Polarized Beam ◽  
Linearly Polarized

scholarly journals Trapping and rotation of microparticles using a metasurface exciting by linearly polarized beam

2021 ◽  
Vol 11 ◽  
pp. 184798042110151
Author(s):  
Yi Yang ◽  
Siyuan Huang
Keyword(s):  
Angular Momentum ◽  
Surface Plasmon ◽  
Orbital Angular Momentum ◽  
Surface Plasmon Polariton ◽  
Polarized Beams ◽  
Archimedes Spiral ◽  
Clockwise Direction ◽  
Polarized Beam ◽  
Linearly Polarized ◽  
Plasmon Polariton

We numerically demonstrate trapping and rotation of particles using a metasurface formed by arranging nanocavities as a right-handed Archimedes’ spiral. Excited by a 90° linearly polarized beam, a focused surface plasmon polariton (SPP) field is formed at the center of the spiral, and the particle can be trapped by the field. While excited by −45° linearly polarized beams, a vortex SPP field carrying orbital angular momentum is formed, and the particles can be trapped and rotated in the clockwise direction at the vortex field.

An infrared light polarized beam splitter based on graphene array

2016 ◽  
Author(s):  
Dingbo Chen ◽  
Junbo Yang ◽  
Jingjing Zhang ◽  
Wenjun Wu ◽  
Jie Huang ◽  
...  
Keyword(s):  
Beam Splitter ◽  
Infrared Light ◽  
Polarized Beam

Narrowing of a light spot at diffraction of linearly-polarized beam on binary asymmetric axicons

2012 ◽  
Vol 21 (1) ◽  
pp. 17-26 ◽  
Author(s):  
S. N. Khonina ◽  
D. V. Nesterenko ◽  
A. A. Morozov ◽  
R. V. Skidanov ◽  
V. A. Soifer
Keyword(s):  
Light Spot ◽  
Polarized Beam ◽  
Linearly Polarized

Measurement of Linearly Polarized Light Rotation Applied in Atomic Magnetometer

2013 ◽  
Vol 753-755 ◽  
pp. 2149-2152
Author(s):  
Qiang Liu ◽  
Yu Dan Sun ◽  
Qiang Huang ◽  
Xian Jin Zeng ◽  
Jun Hai Zhang ◽  
...  
Keyword(s):  
Faraday Effect ◽  
Beam Splitter ◽  
Optical Glass ◽  
Signal To Noise Ratio ◽  
Optical Rotation ◽  
Polarized Light ◽  
Signal To Noise ◽  
Rotational Angle ◽  
Linearly Polarized ◽  
Lock In

The measurement of linearly polarized light rotation is the key technique in atomic magnetometer. It influences the sensitivity of atomic magnetometer directly. The basic principle of polarizer beam splitter detecting was analyzed. The ZF7 optical glass and solenoid were used to generate standard small angle based on Faraday effect. The signal of AC rotational angle was extracted by lock-in amplifier. The experiment proved that the method can measure 8×10-7rad small optical rotation. As the linearly polarized light rotation is 20mrad in atomic magnetometer, the signal to noise ratio reaches 25000.

Injection of ballistic pure spin currents in semiconductors by a single-color linearly polarized beam

2005 ◽  
Vol 72 (20) ◽  
Author(s):  
Hui Zhao ◽  
Xinyu Pan ◽  
Arthur L. Smirl ◽  
R. D. R. Bhat ◽  
Ali Najmaie ◽  
...  
Keyword(s):  
Pure Spin ◽  
Spin Currents ◽  
Polarized Beam ◽  
Linearly Polarized

scholarly journals Optical Assembling of Micro-Particles at a Glass–Water Interface with Diffraction Patterns Caused by the Limited Aperture of Objective

2018 ◽  
Vol 8 (9) ◽  
pp. 1522 ◽  
Author(s):  
Min-Cheng Zhong ◽  
Ai-Yin Liu ◽  
Rong Zhu
Keyword(s):  
Optical Tweezers ◽  
Bottom Surface ◽  
Microfluidic Channels ◽  
Compact Structure ◽  
Particle Distributions ◽  
Micro Particles ◽  
Polarized Beam ◽  
Linearly Polarized ◽  
Ring Structures ◽  
Diffraction Patterns

Optical tweezers can manipulate micro-particles, which have been widely used in various applications. Here, we experimentally demonstrate that optical tweezers can assemble the micro-particles to form stable structures at the glass–solution interface in this paper. Firstly, the particles are driven by the optical forces originated from the diffraction fringes, which of the trapping beam passing through an objective with limited aperture. The particles form stable ring structures when the trapping beam is a linearly polarized beam. The particle distributions in the transverse plane are affected by the particle size and concentration. Secondly, the particles form an incompact structure as two fan-shaped after the azimuthally polarized beam passing through a linear polarizer. Furthermore, the particles form a compact structure when a radially polarized beam is used for trapping. Thirdly, the particle patterns can be printed steady at the glass surface in the salt solution. At last, the disadvantage of diffraction traps is discussed in application of optical tweezers. The aggregation of particles at the interfaces seriously affects the flowing of particles in microfluidic channels, and a total reflector as the bottom surface of sample cell can avoid the optical tweezers induced particle patterns at the interface. The optical trapping study utilizing the diffraction gives an interesting method for binding and assembling microparticles, which is helpful to understand the principle of optical tweezers.

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