Results 21 to 30 of about 1,654,936 (264)

Subradiant Decay in 2D and 3D Atomic Arrays

Photonics
Subradiance is a phenomenon where coupled emitters radiate light at a slower rate than independent ones. While its observation was first reported in disordered cold atom clouds, ordered subwavelength arrays of emitters have emerged as promising platforms
Nicola Piovella, Romain Bachelard
doaj   +1 more source

Subradiance Generation in a Chain of Two-Level Atoms with a Single Excitation

Atoms
Studies of subradiance in a chain N two-level atoms in the single excitation regime focused mainly on the complex spectrum of the effective Hamiltonian, identifying subradiant eigenvalues.
Nicola Piovella
doaj   +1 more source

Blue cooperative emission in Yb3+ - doped GeO2 - PbO glasses

Materials Research, 2006
Investigation of the blue cooperative luminescence in a binary composition of GeO2-PbO glasses with different Yb3+ concentrations is reported. High refractive index (1.96) and large transmission window (0.4 up to 5.0 µm) are characteristics of this ...
Vanessa Duarte Del Cacho, Luciana Reyes Pires Kassab, Samuel Leite de Oliveira, Nilton Itiro Morimoto   +3 more
doaj   +1 more source

Multiple pathway quantum beat spectroscopy

Frontiers in Physics, 2022
We investigate quantum beats by monitoring cooperative emission from rubidium vapor and demonstrate correlated beats via coupled emission channels. We develop a theoretical model, and our simulations are in good agreement with experimental results.
Zhenhuan Yi, Tuguldur Kh. Begzjav, Tuguldur Kh. Begzjav, Gombojav O. Ariunbold, Gombojav O. Ariunbold, Aleksei M. Zheltikov, Alexei V. Sokolov, Alexei V. Sokolov, Marlan O. Scully, Marlan O. Scully, Marlan O. Scully   +10 more
doaj   +1 more source

Hydrogen peroxide serves as pivotal fountainhead for aerosol aqueous sulfate formation from a global perspective

Nature Communications
Traditional atmospheric chemistry posits that sulfur dioxide (SO2) can be oxidized to sulfate (SO4 2–) through aqueous-phase reactions in clouds and gas-phase oxidation.
Jie Gao, Haoqi Wang, Wenqi Liu, Han Xu, Yuting Wei, Xiao Tian, Yinchang Feng, Shaojie Song, Guoliang Shi   +8 more
doaj   +1 more source

Quantum Information Flow in Microtubule Tryptophan Networks

Entropy
Networks of aromatic amino acid residues within microtubules, particularly those formed by tryptophan, may serve as pathways for optical information flow.
Lea Gassab, Onur Pusuluk, Travis J. A. Craddock   +2 more
doaj   +1 more source

Streptavidin cooperative allosterism upon binding biotin observed by differential changes in intrinsic fluorescence

Biochemistry and Biophysics Reports, 2019
While the binding of biotin by streptavidin does not appear to be cooperative in the traditional sense of altered binding strength, it has been suggested that it may be cooperative in terms of differential structural changes in the protein.
Mark J. Waner, James M. Hiznay, Anthony T. Mustovich, William Patton, Charles Ponyik, David P. Mascotti   +5 more
doaj   +1 more source

Cooperative torus mode emission of O-ring lasers

AIP Advances, 2020
Deformable ring lasers were fabricated by dispersing fluorescent dye (rhodamine 6G) in silicone rubber rings, i.e., the so-called O-rings. When excited with a pulsed green laser, an O-ring of 750 µm diameter exhibited a stimulated emission with a ...
Mitsunori Saito, Atsushi Kubota, Ryohei Yagi   +2 more
doaj   +1 more source

Enhanced robustness and dimensional crossover of superradiance in cuboidal nanocrystal superlattices

Physical Review Research, 2023
Cooperative emission of coherent radiation from multiple emitters (known as superradiance) has been predicted and observed in various physical systems, most recently in CsPbBr_{3} nanocrystal superlattices. Superradiant emission is coherent and occurs on
Sushrut Ghonge, David Engel, Francesco Mattiotti, G. Luca Celardo, Masaru Kuno, Boldizsár Jankó   +5 more
doaj   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider, Kris‐Ann Schultz, Nora Schnitzler, Michael Abele, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Ines B. Brecht, Maja Cesen, Andrea Ferrari, Michaela Kuhlen, Malgorzata A. Krawczyk, Ricardo Lopez‐Almaraz, Yves Reguerre, Calogero Virgone, Daniel Orbach   +15 more
wiley   +1 more source