Highly Efficient Circularly Polarized Light Emission in the Green Region from Chiral Polyfluorene–Thiophene Thin Films

2012 ◽  
Vol 41 (9) ◽  
pp. 905-907 ◽  
Author(s):  
Takashi Hirahara ◽  
Masahiro Yoshizawa-Fujita ◽  
Yuko Takeoka ◽  
Masahiro Rikukawa
Keyword(s):  
Thin Films ◽  
Light Emission ◽  
Polarized Light ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Highly Efficient

scholarly journals Design and fabrication of birefringent nano-grating structure for circularly polarized light emission

2014 ◽  
Vol 22 (7) ◽  
pp. 7388 ◽  
Author(s):  
Ming-Yi Lin ◽  
Tsung-Han Tsai ◽  
Yu Ling Kang ◽  
Yu-Cheng Chen ◽  
Yi-Hsiang Huang ◽  
...  
Keyword(s):  
Light Emission ◽  
Polarized Light ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Grating Structure

scholarly journals Normal electric field enhanced light-induced polarizations and magnetic detection of valley polarization in silicene

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
N. Shahabi ◽  
A. Phirouznia
Keyword(s):  
Electric Field ◽  
Light Emission ◽  
Polarized Light ◽  
Spin Current ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Normal Electric Field ◽  
Valley Polarization ◽  
Population Imbalance ◽  
Magnetic Detection

Abstract The role of staggered potential on light-induced spin and pseudo-spin polarization has been investigated in silicene. It has been shown that non-equilibrium spin and pseudo-spin polarizations are emerged in silicene sheet by applying an external perpendicular electric field in the presence of circularly polarized light emission. This electric field results in pseudo-spin resolved states very close to the Dirac points therefore could be considered as a pseudomagnetic field. It has been shown that staggered potential induced spin-valley locking and pseudo-spin resolved bands are responsible for the enhancement of the spin and pseudo-spin polarizations. Meanwhile, spin-valley locking suggests a coexistence of both spin and valley polarizations with nearly identical (or at least proportional) population imbalance at low Fermi energies which could be employed for magnetic detection of the valley polarization. It has been shown that spin-valley locking results in the protection of the spin polarizations against the relaxations in elastic scattering regime. In addition, the results indicate that the pseudo-spin current can be generated by the circularly polarized light which could be explained by asymmetric light absorption of the states in k-space.

Terahertz Emission from Bismuth Thin Films Induced by Excitation with Circularly Polarized Light

2020 ◽  
Vol 14 (6) ◽  
Author(s):  
Yoshua Hirai ◽  
Naotaka Yoshikawa ◽  
Hana Hirose ◽  
Masashi Kawaguchi ◽  
Masamitsu Hayashi ◽  
...  
Keyword(s):  
Thin Films ◽  
Polarized Light ◽  
Terahertz Emission ◽  
Circularly Polarized Light ◽  
Circularly Polarized

Circularly-Polarized Light Emission from Semiconductor Planar Chiral Photonic Crystals

2010 ◽  
Author(s):  
Kuniaki Konishi ◽  
Masahiro Nomura ◽  
Naoto Kumagai ◽  
Satoshi Iwamoto ◽  
Yasuhiko Arakawa ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Light Emission ◽  
Polarized Light ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Chiral Photonic Crystals

Circularly polarized light emission from a chiral nematic phenylterthiophene dimer exhibiting ambipolar carrier transport

2015 ◽  
Vol 3 (26) ◽  
pp. 6891-6900 ◽  
Author(s):  
Taichi Hamamoto ◽  
Masahiro Funahashi
Keyword(s):  
Carrier Transport ◽  
Light Emission ◽  
Polarized Light ◽  
Molecular Volume ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Chiral Nematic

A dimer bearing two phenylterthiophene parts linked by a chiral moiety with a minimized molecular volume has been synthesized.

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