Results 11 to 20 of about 150,884 (289)
Quasi-2D lead halide perovskite gain materials toward electrical pumping laser
Nanophotonics, 2021 Quasi two-dimensional (2D) lead halide perovskite materials have shown outstanding performance in various photoelectric devices, including perovskite light-emitting diodes (LEDs) and perovskite optical pumping lasers.
Zhao Chenyang, Qin Chuanjiang
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Optically pumped magnetoencephalography in epilepsy [PDF]
Annals of Clinical and Translational Neurology, 2019 Abstract We demonstrate the first use of Optically Pumped Magnetoencephalography (OP‐MEG) in an epilepsy patient with unrestricted head movement. Current clinical MEG uses a traditional SQUID system, where sensors are cryogenically cooled and housed in a helmet in which the patient’s head is fixed.
Umesh Vivekananda +12 more
openaire +4 more sources
Optical pumping in dense atomic media: Limitations due to reabsorption of spontaneously emitted photons [PDF]
, 1998 Resonant optical pumping in dense atomic media is discussed, where the absorption length is less than the smallest characteristic dimension of the sample.
Fleischhauer, Michael
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Pumping of nuclear spins by the optical solid effect in a quantum dot [PDF]
, 2009 We demonstrate that efficient optical pumping of nuclear spins in semiconductor quantum dots (QDs) can be achieved by resonant pumping of optically "forbidden" transitions. This process corresponds to one-to-one conversion of a photon absorbed by the dot
A. Abragam +7 more
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PhotoniX, 2023 In this work, on-chip three-dimensional (3D) photonic integrated optical sources based on active fluorescent polymer waveguide microdisks are proposed for light display application.
Chunxue Wang +7 more
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ICTACT Journal on Communication Technology, 2021 Optical network systems with prolonged reach are required to cater the long distance located optical network units (subscribers). In this work, a DP-128 QAM based system is proposed with Optical Back Propagation (OBP) to cope up with nonlinear ...
Kamalpreetkaur, Baljeet Kaur
doaj
Quantitative atomic spectroscopy for primary thermometry [PDF]
, 2011 Quantitative spectroscopy has been used to measure accurately the Doppler-broadening of atomic transitions in $^{85}$Rb vapor. By using a conventional platinum resistance thermometer and the Doppler thermometry technique, we were able to determine $k_B ...
A. E. Siegman +9 more
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Dynamics of a Mn spin coupled to a single hole confined in a quantum dot [PDF]
, 2014 Using the emission of the positively charged exciton as a probe, we analyze the dynamics of the optical pumping and the dynamics of the relaxation of a Mn spin exchange-coupled with a confined hole spin in a II-VI semiconductor quantum dot.
Besombes, L., Boukari, H., Varghese, B.
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Optical pumping of trapped neutral molecules by blackbody radiation [PDF]
, 2007 Optical pumping by blackbody radiation is a feature shared by all polar molecules and fundamentally limits the time that these molecules can be kept in a single quantum state in a trap.
A. Einstein +9 more
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Optical pumping via incoherent Raman transitions [PDF]
, 2007 A new optical pumping scheme is presented that uses incoherent Raman transitions to prepare a trapped Cesium atom in a specific Zeeman state within the 6S_{1/2}, F=3 hyperfine manifold.
A. Boca +8 more
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