Angular polarization anisotropy of nonlinear resonance in two-photon scattering of acoustic vibrations in gas

1998 ◽  
Author(s):  
G. N. Alferov ◽  
Gennady I. Smirnov ◽  
Yu. S. Chesnokov
Keyword(s):  
Nonlinear Resonance ◽  
Acoustic Vibrations ◽  
Polarization Anisotropy ◽  
Photon Scattering ◽  
Two Photon

ROTATIONAL PROPERTIES OF MICRO-SLABS DRIVEN BY LINEARLY-POLARIZED LIGHT

2005 ◽  
Vol 14 (03) ◽  
pp. 375-382 ◽  
Author(s):  
CHIH-LANG LIN ◽  
IRÈNE WANG ◽  
MARC PIERRE ◽  
ISABELLE COLOMBIER ◽  
CHANTAL ANDRAUD ◽  
...  
Keyword(s):  
Optical Tweezers ◽  
Polarized Light ◽  
Polarization Plane ◽  
Light Polarization ◽  
Good Prediction ◽  
Polarization Anisotropy ◽  
Two Photon ◽  
Flat Slabs ◽  
Linearly Polarized ◽  
Optical Torque

We study the rotational motion of objects trapped in a focused laser beam (optical tweezers). Micrometer-sized flat slabs are fabricated using two-photon photopolymerization. These objects, trapped by linearly-polarized light, tend to align parallel to the polarization plane. This alignment effect is attributed to the polarization anisotropy resulting from the object shape and we present a simple electromagnetic approach to estimate the resulting optical torque. Micro-rotors of different sizes are studied experimentally. We characterize the behavior of micro-objects when the light polarization is rotated at constant speed. Our theoretical approach gives a good prediction of how the size of micro-objects affects their rotation efficiency.

scholarly journals The Effect of Magnetic Fields Upon Cosmic X-ray Spectra

1990 ◽  
Vol 115 ◽  
pp. 70-77
Author(s):  
P. Mészáros
Keyword(s):  
Magnetic Fields ◽  
Gamma Ray ◽  
Line Emission ◽  
Atomic Line ◽  
Photon Scattering ◽  
Theoretical Understanding ◽  
Strong Magnetic Fields ◽  
X Ray ◽  
Two Photon ◽  
The One

AbstractThe effect of strong magnetic fields (B ≳ 1011Gauss) upon various atomic line emission mechanisms in the X-ray range is considered, in particular for H and H-like or He-like ions, and a discussion of the detectability and significance of possible measurements is given. The cyclotron mechanism, the one- and two-photon scattering and the bremsstrahlung effects in a strong B are reviewed, as well as the role they play in determining X-ray spectra. These considerations are applied to typical models of X-ray pulsars and Gamma-ray bursters, contrasting observations of magnetic related features to the present theoretical understanding of these objects.

Few-photon routing via chiral light-matter couplings

2021 ◽  
Author(s):  
Ya Yang ◽  
Jing Lu ◽  
Lan Zhou
Keyword(s):  
Quantum Channel ◽  
Active Element ◽  
Single Photon ◽  
Essential Elements ◽  
Quantum Network ◽  
Photon Scattering ◽  
Output State ◽  
Two Photon ◽  
Quantum Router ◽  
The One

Abstract Quantum router is one of the essential elements in the quantum network. Conventional routers only direct a single photon from one quantum channel into another. Here, we proposed a few-photon router. The active element of the router is a single qubit chirally coupled to two independent waveguides simultaneously, where each waveguide mode provides a quantum channel. By introducing the operators of the scatter-free space and the controllable space, the output state of the one-photon and two-photon scattering are derived analytically. It is found that the qubit can direct one and two photons from one port of the incident waveguide to an arbitrarily selected port of the other waveguide with unity, respectively. However, two photons cannot be simultaneously routed to the same port due to the anti-bunch effect.

scholarly journals Long-range two-photon scattering spectroscopy ruler for screening prostate cancer cells

2015 ◽  
Vol 6 (4) ◽  
pp. 2411-2418 ◽  
Author(s):  
Sudarson Sekhar Sinha ◽  
Dilip K. Paul ◽  
Rajashekhar Kanchanapally ◽  
Avijit Pramanik ◽  
Suhash Reddy Chavva ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Cancer Cells ◽  
Long Range ◽  
Prostate Cancer Cells ◽  
Photon Scattering ◽  
Two Photon

Development of a long-range TPS ruler for the screening of prostate cancer cells with sensitivity of 5 cells per mL level is demonstrated.

scholarly journals Observation of a new ηπ0π0 resonance at 1900 MeV/c2 in two-photon scattering

1990 ◽  
Vol 249 (2) ◽  
pp. 353-358 ◽  
Author(s):  
K. Karch ◽  
D. Antreasyan ◽  
H.W. Bartels ◽  
D. Besset ◽  
Ch. Bieler ◽  
...  
Keyword(s):  
Photon Scattering ◽  
Two Photon
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