Results 11 to 20 of about 34,043 (308)
Quantum Dot Reflective Semiconductor Optical Amplifiers: Optical Pumping Compared with Electrical Pumping [PDF]
Nanomaterials, 2022 A comprehensive study has been conducted on quantum dot reflective semiconductor optical amplifiers (QD-RSOAs) with optical pumps (OPs). Moreover, few studies have been completed on OP-based QD-RSOAs.
Farshad Serat Nahaei +2 more
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Hybrid Electro-Optical Pumping of Active Plasmonic Nanostructures [PDF]
Nanomaterials, 2020 Surface plasmon polaritons (SPPs) offer a unique opportunity to overcome the diffraction limit of light. However, this opportunity comes at the cost of the strong absorption of the SPP field in a metal, which unavoidably limits the SPP propagation length
Andrey A. Vyshnevyy, Dmitry Yu. Fedyanin
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Enhanced Modulation of Terahertz Generation in Optically Pumped Silicon-Based CoFeB/Ir Heterostructures [PDF]
NanomaterialsSilicon-compatible spintronic terahertz emitters (STEs) are crucial for on-chip ultrafast optoelectronic integration, yet their all-optical controllability remains a key challenge.
Ruijie Peng +5 more
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Optical Pumping into Many-Body Entanglement [PDF]
Physical Review Letters, 2011 We propose a scheme of optical pumping by which a system of atoms coupled to harmonic oscillators is driven to an entangled steady state through the atomic spontaneous emission. It is shown that the optical pumping can be tailored so that the many-body atomic state asymptotically reaches an arbitrary stabilizer state regardless of the initial state ...
Cho, JY, Bose, S, Kim, MS
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Incoherent pumping-induced optical limiting [PDF]
Scientific ReportsThe nonlinear optical absorption of a probe field is investigated in a three-level V-type quantum system under a pump-probe configuration. It is demonstrated that the system exhibits saturable absorption (SA) behavior.
Noushin Parkan +3 more
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Alleviating optical pumping inhomogeneity using a polarization-encoded metasurface in NMR co-magnetometers [PDF]
Microsystems & NanoengineeringIn nuclear magnetic resonance (NMR) co-magnetometers, the non-uniform transverse energy distribution of the pumping Gaussian beam can result in substantial optical pumping inhomogeneity and decoherence of atomic spins, which hinder the improvement of the
Yan Xu +6 more
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Optical pumping of quantum dot micropillar lasers [PDF]
, 2021 © 2021 Optica Publishing Group. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained.
Furfaro, L. +9 more
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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
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Cold-atom optical filtering enhanced by optical pumping
Frontiers in Physics, 2022 Atomic optical filters such as Faraday anomalous dispersion optical filters (FADOFs) or similar technologies can achieve very narrow optical bandwidth close to the scale of atomic linewidth, which can be greatly reduced in cold atoms. However, limited by
Xiaolei Guan +7 more
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Dependence of mode profile on the pumping configuration of a LED-pumped Ce:Nd:YAG laser [PDF]
مجله علوم و فنون هستهای, 2021 Transverse intensity distribution or laser mode profile is one of the most important characteristics of a laser oscillator. In the present study, mode profile of a LED-pumped Ce:Nd:YAG laser oscillator and its dependency on the geometrical configuration ...
F. Hokmabadi +2 more
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