scholarly journals Angular phase shift in polarization-angle dependence of microwave-induced magnetoresistance oscillations

2016 ◽  
Vol 94 (24) ◽  
Author(s):  
Han-Chun Liu ◽  
Rasanga L. Samaraweera ◽  
R. G. Mani ◽  
C. Reichl ◽  
W. Wegscheider
Keyword(s):  
Phase Shift ◽  
Polarization Angle ◽  
Angle Dependence ◽  
Magnetoresistance Oscillations

Coherent light-driven electron transport through polycyclic aromatic hydrocarbon: laser frequency, field intensity, and polarization angle dependence

2015 ◽  
Vol 17 (32) ◽  
pp. 20617-20629 ◽  
Author(s):  
Liang-Yan Hsu ◽  
Herschel Rabitz
Keyword(s):  
Electron Transport ◽  
Polycyclic Aromatic Hydrocarbon ◽  
Field Intensity ◽  
Laser Frequency ◽  
Polarization Angle ◽  
Coherent Light ◽  
Angle Dependence ◽  
Frequency Field ◽  
Polycyclic Aromatic ◽  
Assisted Tunneling

Laser frequency, field intensity, and polarization angle dependence of photon assisted tunneling in molecular junctions.

Polarized Raman Characterization of (2,2) Carbon Nanotubes Formed inside the Channels of AEL Crystals

2010 ◽  
Vol 160-162 ◽  
pp. 1596-1600
Author(s):  
Jian Pang Zhai ◽  
Irene Ling Li ◽  
Shuang Chen Ruan
Keyword(s):  
Carbon Nanotubes ◽  
Visible Region ◽  
Polarization Angle ◽  
Zeolite Crystal ◽  
Angle Dependence ◽  
Polarized Raman ◽  
Walled Carbon Nanotubes ◽  
Raman Characterization ◽  
Dipole Transition Moment

A pure AlPO4-11 (AEL) zeolite crystal is optically transparent in visible region and a good insulator with thermal stability up to 1173 K. These excellent physical properties, plus their unique elliptical pore structures, make them an excellent template to fabricate ultra-thin single-walled carbon nanotubes (SWNTs).We studied the polarization dependence Raman spectra for (2,2) SWNTs formed inside the channels of AEL crystals. These (2,2) SWNTs acts as a dipolar antenna, polarized along the crystal channels axis. The polarization angle dependence of the Raman intensity indicates that the enclosed (2,2) SWNTs are highly oriented in the channels with their dipole transition moment mostly along the channels.

scholarly journals Signatures of Polar-cap Current Flow in Polarization Angle Sweeps

2000 ◽  
Vol 177 ◽  
pp. 253-256
Author(s):  
Johann A. Hibschman ◽  
Jonathan Arons
Keyword(s):  
Phase Shift ◽  
Current Flow ◽  
Polarization Angle ◽  
Polar Cap

AbstractUpon re-examining the characteristic polarization angle sweep of rotation-powered pulsars, we find that the sweep is perceptibly shifted by aberrational effects and by polar-cap current flow. In addition to the previously known phase shift of the entire sweep by ΔΦ = −4r/RL, aberration shifts the polarization angle itself by ΔΨ = −(10/3)(r/RL) cos α. Similarly, current flow above the polar cap shifts the polarization sweep by ΔΨ = (10/3)(r/RL)(J/JGJ) COSα, potentially providing a method of directly measuring the magnitude of the current. The competition between these two effects produces a potentially observable signature in the polarization angle sweep.

scholarly journals Polarization angle dependence of stark absorption spectra of spirilloxanthin bound to the reconstituted LH1 complexes using LH1-subunits isolated from the purple photosynthetic bacterium Rhodospirillum rubrum.

2012 ◽  
Vol 59 (1) ◽  
Author(s):  
Tomoko Horibe ◽  
Katsunori Nakagawa ◽  
Toshiyuki Kusumoto ◽  
Ritsuko Fujii ◽  
Richard J Cogdell ◽  
...  
Keyword(s):  
Dipole Moment ◽  
Absorption Spectra ◽  
Rhodospirillum Rubrum ◽  
Photosynthetic Bacterium ◽  
Transition Dipole Moment ◽  
Polarization Angle ◽  
Transition Dipole ◽  
Angle Dependence ◽  
Induced Dipole ◽  
Purple Photosynthetic Bacterium

Reconstituted LH1 complexes were prepared using the LH1 subunit-type complexes, isolated from the purple photosynthetic bacterium Rhodospirillum (Rs.) rubrum, and purified all-trans spirilloxanthin. Stark absorption spectra of spirilloxanthin bound to both the native and reconstituted LH1 complexes were compared in different polarization angles (χ) against the external electric field. From the polarization angle dependence of the Stark absorption spectra, two angles were determined in reference to the direction of transition dipole moment (m) of spirilloxanthin: one is the change in polarizability upon photoexcitation (Δα), θ(Δα) and the other is the change in static dipole moment upon photoexcitation (Δμ), θ(Δμ). Despite the symmetric molecular structure of all-trans spirilloxanthin, its Stark absorption spectra show pronounced values of Δμ. This large Δμ values essentially caused by the effect of induced dipole moment through Δα both in the cases for native and reconstituted LH1 complexes. However, slightly different values of θ(Δα) and θ(Δμ) observed for the native LH1 complex suggest that spirilloxanthin is asymmetrically distorted when bound to the native LH1 complex and gives rise to intrinsic Δμ value.

scholarly journals Polarization angle dependence of the breathing mode in confined one-dimensional dipolar bosons

2021 ◽  
Vol 103 (11) ◽  
Author(s):  
S. De Palo ◽  
E. Orignac ◽  
M. L. Chiofalo ◽  
R. Citro
Keyword(s):  
Polarization Angle ◽  
Breathing Mode ◽  
One Dimensional ◽  
Angle Dependence
Sign in / Sign up

Export Citation Format

Share Document