Directional features of the downshifted peak observed in HF-induced stimulated electromagnetic emission spectra obtained using an interferometer [PDF]
, 2006 International audienceA high frequency (HF) ionospheric modification experiment was carried out between 25 September and 8 October 2004, using the EISCAT HF transmitter located near Tromsø, Norway.
Khudukon, B. Z. +27 more
core +6 more sources
An interferometer experiment to explore the aspect angle dependence of stimulated electromagnetic emission spectra [PDF]
, 2005 International audienceWhen the Earth's ionosphere is irradiated by a radiofrequency (RF) electromagnetic wave of sufficiently high power density and tuned to match a natural E- or F-region plasma frequency, ionospheric magnetoionic wave modes may be ...
Khudukon, B. Z. +36 more
core +6 more sources
Nanomaterials, 2021 HgTe/CdHgTe quantum well (QW) heterostructures have attracted a lot of interest recently due to insights they provided towards the physics of topological insulators and massless Dirac fermions.
Vladimir V. Rumyantsev +18 more
doaj +1 more source
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
doaj +1 more source
State Filling and Stimulated Emission by Colloidal InP/ZnSe Core/Shell Quantum Dots [PDF]
, 2022 Colloidal InP-based quantum dots (QDs) have been widely studied for luminescent color conversion or electroluminescence, yet the nature of the emitting state remains a matter of debate and reports on stimulated emission by these materials are nearly ...
Hannes, Van Avermaet +5 more
core +2 more sources
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 +4 more
doaj +1 more source
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 +6 more
doaj +1 more source
Analysis and processing of mechanically stimulated electrical signals for the identification of deformation in brittle materials [PDF]
, 2010 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The fracture of brittle materials is of utmost importance for civil engineering and seismology applications.
Kyriazis, Panagiotis A
core +7 more sources
Spatiotemporal evolution of radio wave pump-induced ionospheric phenomena near the fourth electron gyroharmonic [PDF]
, 2007 On 12 November 2001, the European Incoherent Scatter (EISCAT) high-frequency (HF) radio wave transmitter facility, operating in O-mode at 5.423 MHz with 550 MW effective radiated power, produced artificial optical rings which appeared immediately at ...
Kosch, Mike J. +3 more
core +4 more sources
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 +4 more
doaj +1 more source