Nuclear polarization of 3He gas at and below 4.2 K by room temperature laser optical pumping

1984 ◽  
Author(s):  
S. B. Crampton ◽  
P. J. Nacher ◽  
M. Leduc ◽  
F. Laloë
Keyword(s):  
Room Temperature ◽  
Nuclear Polarization ◽  
Optical Pumping

scholarly journals Bulk Nuclear Polarization Enhanced at Room Temperature by Optical Pumping

2013 ◽  
Vol 111 (5) ◽  
Author(s):  
Ran Fischer ◽  
Christian O. Bretschneider ◽  
Paz London ◽  
Dmitry Budker ◽  
David Gershoni ◽  
...  
Keyword(s):  
Room Temperature ◽  
Nuclear Polarization ◽  
Optical Pumping

scholarly journals Optical switching of topological phase in a perovskite polariton lattice

2021 ◽  
Vol 7 (21) ◽  
pp. eabf8049
Author(s):  
Rui Su ◽  
Sanjib Ghosh ◽  
Timothy C. H. Liew ◽  
Qihua Xiong
Keyword(s):  
Optical Switching ◽  
Room Temperature ◽  
Optical Pumping ◽  
Optical Nonlinearity ◽  
Edge States ◽  
Ambient Conditions ◽  
Strong Light ◽  
Exciton Polaritons ◽  
Matter Interaction ◽  
Light Matter Interaction

Strong light-matter interaction enriches topological photonics by dressing light with matter, which provides the possibility to realize active nonlinear topological devices with immunity to defects. Topological exciton polaritons—half-light, half-matter quasiparticles with giant optical nonlinearity—represent a unique platform for active topological photonics. Previous demonstrations of exciton polariton topological insulators demand cryogenic temperatures, and their topological properties are usually fixed. Here, we experimentally demonstrate a room temperature exciton polariton topological insulator in a perovskite zigzag lattice. Polarization serves as a degree of freedom to switch between distinct topological phases, and the topologically nontrivial polariton edge states persist in the presence of onsite energy perturbations, showing strong immunity to disorder. We further demonstrate exciton polariton condensation into the topological edge states under optical pumping. These results provide an ideal platform for realizing active topological polaritonic devices working at ambient conditions, which can find important applications in topological lasers, optical modulation, and switching.

Room Temperature cw Operated Superluminescent Diodes for Optical Pumping of Nd: YAG Laser

1976 ◽  
Vol 15 (11) ◽  
pp. 2191-2194 ◽  
Author(s):  
Kuniakira Iwamoto ◽  
Isao Hino ◽  
Shohei Matsumoto ◽  
Koji Inoue
Keyword(s):  
Room Temperature ◽  
Optical Pumping ◽  
Yag Laser ◽  
Superluminescent Diodes

scholarly journals High-efficiency optical pumping of nuclear polarization in a GaAs quantum well

2017 ◽  
Vol 96 (20) ◽  
Author(s):  
R. W. Mocek ◽  
V. L. Korenev ◽  
M. Bayer ◽  
M. Kotur ◽  
R. I. Dzhioev ◽  
...  
Keyword(s):  
Quantum Well ◽  
Nuclear Polarization ◽  
Optical Pumping ◽  
High Efficiency

scholarly journals Photo-induced radical polarization and liquid-state dynamic nuclear polarization using fullerene nitroxide derivatives

2017 ◽  
Vol 19 (47) ◽  
pp. 31823-31829 ◽  
Author(s):  
Guoquan Liu ◽  
Shu-Hao Liou ◽  
Nikolay Enkin ◽  
Igor Tkach ◽  
Marina Bennati
Keyword(s):  
Laser Irradiation ◽  
Spin Polarization ◽  
Dynamic Nuclear Polarization ◽  
Liquid State ◽  
Room Temperature ◽  
Nuclear Polarization ◽  
Continuous Wave ◽  
Continuous Wave Laser ◽  
Wave Laser ◽  
Nmr Signal Enhancement

Continuous wave laser irradiation of fullerene–nitroxide derivatives at room temperature leads to spin polarization and NMR signal enhancement of toluene solvent protons.

SABRE Hyperpolarization of Bipyridine Stabilized Ir-Complex at High, Low and Ultralow Magnetic Fields

2017 ◽  
Vol 231 (3) ◽  
Author(s):  
Andrey N. Pravdivtsev
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Magnetic Fields ◽  
Dynamic Nuclear Polarization ◽  
Signal Amplification ◽  
Nuclear Polarization ◽  
Optical Pumping ◽  
Spin Exchange ◽  
Spin Exchange Optical Pumping ◽  
Wide Range

AbstractA strong limitation of nuclear magnetic resonance is its low inherent sensitivity that can be overcome by using an appropriate hyperpolarization technique. Presently, dynamic nuclear polarization and spin-exchange optical pumping are the only hyperpolarization techniques that are used in applied medicine. However, both are relatively complex in use and expensive. Here we present a modification of the signal amplification by reversible exchange (SABRE) hyperpolarization method – SABRE on stabilized Ir-complexes. A stabilized Ir-complex (here we used bipyridine for stabilization) can be hyperpolarized in a wide range of magnetic fields from a few μT upto 10 T with

High nuclear polarization in 3 He and 3 He- 4 He gas mixtures by optical pumping with a laser diode

1996 ◽  
Vol 63 (6) ◽  
pp. 629-633 ◽  
Author(s):  
E. Stoltz ◽  
M. Meyerhoff ◽  
N. Bigelow ◽  
M. Leduc ◽  
P.-J. Nacher ◽  
...  
Keyword(s):  
Laser Diode ◽  
Nuclear Polarization ◽  
Optical Pumping ◽  
Gas Mixtures
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