Results 11 to 20 of about 313,183 (286)

Optical Frequency Comb-Based Direct Two-Photon Cooling for Cold Atom Clock

Photonics, 2022
The performance of the cold atom clock based on coherent population trapping (CPT) improved when the temperature decreased. In order to obtain a lower temperature in the cold atom clock, we proposed a cooling scheme in this paper that employs direct two ...
Lin Dan, Hao Xu, Ping Guo, Jianye Zhao
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Asymmetric AZA-BODIPY with Optical Gain in the Near-Infrared Region

Molecules, 2022
In recent years, there has been a lot of interest in the development of organic compounds emitting in the near-infrared (NIR) region due to their stimulating applications, such as biosensing and light detection and ranging (LiDAR).
Tersilla Virgili, Lucia Ganzer, Chiara Botta, Benedetta Maria Squeo, Mariacecilia Pasini   +4 more
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Nanoscatterer-Assisted Fluorescence Amplification Technique

Nanomaterials, 2023
Weak fluorescence signals, which are important in research and applications, are often masked by the background. Different amplification techniques are actively investigated.
Sylvain Bonnefond, Antoine Reynaud, Julie Cazareth, Sophie Abélanet, Massimo Vassalli, Frédéric Brau, Gian Luca Lippi   +6 more
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Interpretation and Dynamics of the Lotka–Volterra Model in the Description of a Three-Level Laser

Photonics, 2021
In this work, the Lotka–Volterra equations where applied to laser physics to describe population inversion and the number of emitted photons. Given that predation and stimulated emissions are analogous processes, two rate equations where obtained by ...
Vicente Aboites, Jorge Francisco Bravo-Avilés, Juan Hugo García-López, Rider Jaimes-Reategui, Guillermo Huerta-Cuellar   +4 more
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Raman stimulated neutrino pair emission

European Physical Journal C: Particles and Fields, 2019
A new scheme using macroscopic coherence is proposed to experimentally determine the neutrino mass matrix, in particular the absolute value of neutrino masses, and the mass type, Majorana or Dirac.
Hideaki Hara, Motohiko Yoshimura
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Active Compensation of Differential Group Delay in a Dual-Wavelength Pulsed Fiber Laser Driven by Quasi-Synchronous Pumping

Photonics, 2022
We report on synchronized dual-wavelength (1.07 μm and 1.24 μm) pulsed lasing driven by a quasi-synchronous primary pumping (at 0.98 μm) of an Yb-doped fiber laser, which incorporates also a P2O5-doped fiber as an intracavity Raman converter.
Boris Nyushkov, Aleksey Ivanenko, Gleb Vishnyakov, Alexey Kharauzov, Sergey Smirnov   +4 more
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Effects of excitonic diffusion on stimulated emission in nanocrystalline ZnO [PDF]

, 2006
We present optically-pumped emission data for ZnO, showing that high excitation effects and stimulated emission / lasing are observed in nanocrystalline ZnO thin films at room temperature, although such effects are not seen in bulk material of better ...
de Posada, Eduardo, Henry, Martin O., Lunney, James G., McGlynn, Enda, Mosnier, Jean-Paul, Tobin, Gerard   +5 more
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Stimulated emission of polarization-entangled photons [PDF]

, 2001
Entangled photon pairs -- discrete light quanta that exhibit non-classical correlations -- play a crucial role in quantum information science (for example in demonstrations of quantum non-locality and quantum cryptography).
A Aspect, A Ekert, A Furusawa, C Simon, D Boschi, D Boumeester, D Bouwmeester, DS Naik, E Knill, F De Martini, F DeMartini, G Weihs, J Kim, J-W Pan, JF Clauser, LA Wu, M Atature, P Kok, PG Kwiat, PW Milonni, RE Slusher, RF Cregan, T Jennewein, TJ Herzog, W Tittel, W Tittel, YH Shih, ZY Ou, ZY Ou, ZY Ou   +29 more
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Round-Shaped Micro Bio-Lasers Utilizing Rhodamine B as a Gain Medium [PDF]

Progress in Physics of Applied Materials
Biolasers, new ones that utilize incorporated protein fluorophores within microscale optical cavities to produce coherent light, have a wide range of applications in medicine, including identification, diagnosing, and treating many diseases, skin repair,
Shima Vahidi, Maryam Aliannezhadi, Zahra Gholizadeh   +2 more
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Optical Maser Emission from Trivalent Praseodymium in Calcium Tungstate [PDF]

, 1962
Coherent emission at 1.047 µ from trivalent praseodymium in calcium tungstate was observed. This emission coincides with strong infrared fluorescence at the same wavelength and was found to be stimulated mostly by absorption of blue light by the 3P0, 3P1,
Nassau, K., Porto, S. P. S., Yariv, A.
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