$${\varvec{\gamma n(p)\rightarrow \pi ^-p(p)}}$$ Asymmetries with Linearly Polarized Beams and Longitudinally Polarized Targets in the N$$^*$$ Resonance Region

2019 ◽  
Vol 60 (1) ◽  
Author(s):  
H. Y. Lu ◽  
Keyword(s):  
Resonance Region ◽  
Polarized Beams ◽  
Linearly Polarized ◽  
Polarized Targets

Influence of the structure of new poly(amide-imide)s on their optical properties

e-Polymers ◽  
2004 ◽  
Vol 4 (1) ◽  
Author(s):  
Danuta Sęk ◽  
Eugenia Grabiec ◽  
Anna Sobolewska ◽  
Andrzej Miniewicz
Keyword(s):  
Laser Light ◽  
Side Chain ◽  
Intersection Angle ◽  
Experimental Conditions ◽  
Time Constants ◽  
Polarized Beams ◽  
Azo Group ◽  
Linearly Polarized ◽  
One Step ◽  
Kinetics Of

Abstract Two classes of poly(amide-imide)s with mono- and bisazoaromatic chromophores in the side chain have been synthesized using one-step hightemperature polycondensation. The influence of the structures of the macromolecules on their properties was investigated. Preliminary results of the kinetics of holographic grating recording using 514.5 nm Ar+ laser light for chosen poly(amideimide) films are presented. The gratings were recorded using two linearly polarized beams with s-s or s-p configurations. For comparative purposes all experimental conditions (light intensity, two-beams intersection angle) were kept unchanged. It was found that time constants of grating build-up were significantly larger for polymers containing a chromophore with two azo groups when compared with the same polymers having a single azo group. On the other hand diffraction efficiencies were lower for polymers containing a chromophore with two azo groups than with a single azo group.

Reduction of focus size in tightly focused linearly polarized beams

2004 ◽  
Vol 85 (19) ◽  
pp. 4319 ◽  
Author(s):  
M. Martínez-Corral ◽  
R. Martínez-Cuenca ◽  
I. Escobar ◽  
G. Saavedra
Keyword(s):  
Polarized Beams ◽  
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.

scholarly journals SHARP FOCUSING OF A MIXTURE OF RADIALLY AND LINEARLY POLARIZED BEAMS USING A BINARY MICROLENS

2014 ◽  
Vol 38 (4) ◽  
pp. 606-613 ◽  
Author(s):  
S. S. Stafeev ◽  
L. O’Faolain ◽  
M. I. Shanina ◽  
A. G. Nalimov ◽  
V. V. Kotlyar
Keyword(s):  
Polarized Beams ◽  
Linearly Polarized ◽  
Sharp Focusing

Heterogeneous Nucleation of Spatially Coherent Damage Structures in Crystalline Silicon with Picosedcond 1.06 μm and 0.53 μm Laser Pulses

1980 ◽  
Vol 1 ◽  
Author(s):  
R.M. Walser ◽  
M.F. Becker ◽  
J.G. Ambrose ◽  
D.Y. Sheng
Keyword(s):  
Electric Field ◽  
Heterogeneous Nucleation ◽  
Crystallographic Orientation ◽  
Free Space ◽  
Crystalline Silicon ◽  
Laser Pulses ◽  
Laser Wavelength ◽  
Beam Spot ◽  
Polarized Beams ◽  
Linearly Polarized

Several types of periodic ripple structures have been observed on the surface of solids that have been laser irradiated with beam intensities near their melting thresholds.1-7 We restrict our attention here to the coherent, onedimensional (RD) gratings induced by linearly polarized beams.3-7 These gratings have a period close to the free space laser wavelength (λ0) for normally incident beams and are normally found in the beam spot near the melt boundary (Fig. 1). The grating lines are always perpendicular to the optical electric field Ei independent of the crystallographic orientation of the sample.

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