Results 1 to 10 of about 313,183 (286)

Optimal irreversible stimulated emission

New Journal of Physics, 2012
We studied the dynamics of an initially inverted atom in a semi-infinite waveguide, in the presence of a single propagating photon. We show that atomic relaxation is enhanced by a factor of 2, leading to maximal bunching in the output field. This optimal
D Valente, Y Li, J P Poizat, J M Gérard, L C Kwek, M F Santos, A Auffèves   +6 more
doaj   +7 more sources

Reversibly Tuning Electrochemiluminescence with Stimulated Emission Route for Single-Cell Imaging [PDF]

Research, 2023
Electrochemiluminescence (ECL) has established itself as an excellent transduction technique in biosensing and light-emitting device, while conventional ECL mechanism depending on spontaneous emission of luminophores lacks reversibility and tunable ...
Cheng Ma, Xiaodan Gou, Zejing Xing, Min-Xuan Wang, Wenlei Zhu, Qin Xu, Dechen Jiang, Jun-Jie Zhu   +7 more
doaj   +2 more sources

Stimulated Emission up to 2.75 µm from HgCdTe/CdHgTe QW Structure at Room Temperature [PDF]

Nanomaterials, 2022
Heterostructures with thin Hg(Cd)Te/CdHgTe quantum wells (QWs) are attractive for the development of mid-infrared interband lasers. Of particular interest are room-temperature operating emitters for the short-wavelength infrared range (SWIR, typically ...
Vladimir V. Utochkin, Konstantin E. Kudryavtsev, Alexander A. Dubinov, Mikhail A. Fadeev, Vladimir V. Rumyantsev, Anna A. Razova, Egor V. Andronov, Vladimir Ya. Aleshkin, Vladimir I. Gavrilenko, Nikolay N. Mikhailov, Sergey A. Dvoretsky, Frederic Teppe, Sergey V. Morozov   +12 more
doaj   +2 more sources

Hawking radiation as stimulated emission

Physics Letters B, 2020
We regard the Parikh-Wilczek's tunnelling model of Hawking radiation as a quantum mechanical process of stimulated emission. The hypothesized microstates are found seated at the horizon with double degeneracy. A Jaynes-Cummings toy model for a black hole
Wen-Yu Wen
doaj   +3 more sources

Stimulated Emission Tomography: Beyond Polarization [PDF]

Optics Letters, 2018
In this work we demonstrate the use of stimulated emission tomography to characterize a hyper-entangled state generated by spontaneous parametric down-conversion in a CW-pumped source.
Ciampini, Mario Arnolfo, Cimini, Valeria, Geraldi, Andrea, Liscidini, M., Macchiavello, Chiara, Mataloni, Paolo, Sipe, J. E.   +6 more
core   +4 more sources

Electrical Pumping of Perovskite Diodes: Toward Stimulated Emission [PDF]

Advanced Science, 2021
The success of metal halide perovskites in photovoltaic and light‐emitting diodes (LEDs) motivates their application as a solid‐state thin‐film laser. Various perovskites have shown optically pumped stimulated emission of lasing and amplified spontaneous
Changsoon Cho, Tobias Antrack, Martin Kroll, Qingzhi An, Toni R. Bärschneider, Axel Fischer, Stefan Meister, Yana Vaynzof, Karl Leo   +8 more
doaj   +2 more sources

Reactivatable stimulated emission depletion microscopy using fluorescence-recoverable nanographene [PDF]

Nature Communications
Stimulated emission depletion (STED) microscopy, a key optical super-resolution imaging method, has extended our ability to view details to resolution levels of tens of nanometers.
Qiqi Yang, Antonio Virgilio Failla, Petri Turunen, Ana Mateos-Maroto, Meiyu Gai, Werner Zuschratter, Sophia Westendorf, Márton Gelléri, Qiang Chen, Goudappagouda, Hao Zhao, Xingfu Zhu, Svenja Morsbach, Marcus Scheele, Wei Yan, Katharina Landfester, Ryota Kabe, Mischa Bonn, Akimitsu Narita, Xiaomin Liu   +19 more
doaj   +2 more sources

Cosmological stimulated emission

European Physical Journal C: Particles and Fields
We study stimulated emission and absorption of gravitons in a squeezed vacuum state immersed in a thermal radiation bath. Employing one-loop interaction-picture perturbation theory, we track the time evolution of the graviton number operator and its ...
Atsuhisa Ota
doaj   +3 more sources

Through-bond and through-space radiofrequency amplification by stimulated emission of radiation [PDF]

Communications Chemistry
Radio Amplification by Stimulated Emission of Radiation (RASER) is a phenomenon observed during nuclear magnetic resonance (NMR) experiments with strongly negatively polarized systems. This phenomenon may be utilized for the production of very narrow NMR
Ivan A. Trofimov, Oleg G. Salnikov, Andrey N. Pravdivtsev, Henri de Maissin, Anna P. Yi, Eduard Y. Chekmenev, Jan-Bernd Hövener, Andreas B. Schmidt, Igor V. Koptyug   +8 more
doaj   +2 more sources

Optical Studies and Transmission Electron Microscopy of HgCdTe Quantum Well Heterostructures for Very Long Wavelength Lasers

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, Anna A. Razova, Leonid S. Bovkun, Dmitriy A. Tatarskiy, Vladimir Y. Mikhailovskii, Maksim S. Zholudev, Anton V. Ikonnikov, Tatyana A. Uaman Svetikova, Kirill V. Maremyanin, Vladimir V. Utochkin, Mikhail A. Fadeev, Vladimir G. Remesnik, Vladimir Y. Aleshkin, Nikolay N. Mikhailov, Sergey A. Dvoretsky, Marek Potemski, Milan Orlita, Vladimir I. Gavrilenko, Sergey V. Morozov   +18 more
doaj   +1 more source