scholarly journals Light-ellipticity and polarization-angle dependence of magnetic resonances in rubidium vapor using amplitude-modulated light: Theoretical and experimental investigations

2020 ◽  
Vol 102 (3) ◽  
Author(s):  
Raghwinder Singh Grewal ◽  
Gour Pati ◽  
Renu Tripathi
Keyword(s):  
Experimental Investigations ◽  
Polarization Angle ◽  
Rubidium Vapor ◽  
Angle Dependence ◽  
Magnetic Resonances ◽  
Modulated Light

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 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

Experimental investigations of diode pumped rubidium vapor laser

2013 ◽  
Vol 25 (7) ◽  
pp. 1657-1660
Author(s):  
徐程 Xu Cheng ◽  
谭荣清 Tan Rongqing ◽  
李志永 Li Zhiyong ◽  
李琳 Li Lin
Keyword(s):  
Experimental Investigations ◽  
Vapor Laser ◽  
Rubidium Vapor ◽  
Diode Pumped

A Second-Harmonic Generation Study of GaAs-Oxide Removal Using a Hydrogen Plasma

1994 ◽  
Vol 340 ◽  
Author(s):  
Takahiro Kimura ◽  
Chikashi Yamada
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Hydrogen Plasma ◽  
Polarization Angle ◽  
Plasma Irradiation ◽  
Angle Dependence ◽  
Removal Process ◽  
Before And After ◽  
Oxide Removal

ABSTRACTWe observed a second-harmonic generation (SHG) in reflection from a GaAs (100) surface during an oxide removal process using a pulsed hydrogen plasma. We found that the P-polarized SH intensity under P-polarized excitation decreased in the [011] azimuth of incidence and increased in the [011] azimuth of incidence during hydrogen plasma irradiation. The input polarization angle dependence of the P-polarized SH intensity before and after oxide removal was fitted to a model which includes both the surface and bulk SHG contributions. We estimated the thickness of the removed oxide based on the bulk SHG contribution change.

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