Results 1 to 10 of about 292,233 (298)

Spontaneous Emission Mediated by Moiré Hyperbolic Metasurfaces [PDF]

Nanomaterials
We investigate the spontaneous emission of a quantum emitter (QE) placed near the twisted hyperbolic metasurfaces (HMTSs) made of graphene strips. We demonstrate that the spontaneous emission can be enhanced distinctly due to the existence of moiré ...
Yuying Liu, Zhanrong Yang, Tongbiao Wang, Jianrong Yang, Tianbao Yu, Qinghua Liao   +5 more
doaj   +2 more sources

Spontaneous Emission in Chaotic Cavities [PDF]

Physical Review Letters, 1997
The spontaneous emission rate \Gamma of a two-level atom inside a chaotic cavity fluctuates strongly from one point to another because of fluctuations in the local density of modes. For a cavity with perfectly conducting walls and an opening containing N
A. Lagendijk, C. W. J. Beenakker, C. W. J. Beenakker, D. J. Heinzen, D. Kleppner, E. P. Wigner, F. De Martini, F. T. Smith, G. Gabrielse, J. J. M. Verbaarschot, K. B. Efetov, M. Büttiker, N. Taniguchi, P. Goy, P. W. Brouwer, P. W. Brouwer, R. G. Hulet, R. Sprik, S. D. Brorson, S. Haroche, S. M. Barnett, T. Sh. Misirpashaev, W. Jhe, Y. V. Fyodorov   +23 more
core   +6 more sources

Detaled description of spontaneous emission [PDF]

Journal of Modern Optics, 2012
The wave side of wave-photon duality, describing light as an electromagnetic field (EMF), is used in this article. EMF of spontaneous light emission (SE) of laser excited atom is calculated from first principles for the first time.
Guryev, Marat
core   +2 more sources

Directional spontaneous emission in photonic crystal slabs [PDF]

Nanophotonics
Spontaneous emission is one of the most fundamental out-of-equilibrium processes in which an excited quantum emitter relaxes to the ground state due to quantum fluctuations.
Navarro-Barón Erik P., Vinck-Posada Herbert, González-Tudela Alejandro   +2 more
doaj   +2 more sources

Funneling Spontaneous Emission into Waveguides via Epsilon-Near-Zero Metamaterials [PDF]

Nanomaterials, 2021
In this work, we discuss the use of epsilon-near-zero (ENZ) metamaterials to efficiently couple light radiated by a dipolar source to an in-plane waveguide.
M. Channab, C. F. Pirri, A. Angelini
doaj   +2 more sources

Amplified Spontaneous Emission in Paper. [PDF]

Sci Rep, 2019
AbstractIndustrially produced copy paper is presented as a novel optical material for narrow-band stimulated emission. Fluorescent brightening agents (FBA) such as Calcofluor White provide enough gain to exceed the threshold for amplified spontaneous emission. By applying an additional dye such as Coumarin 307, or simply a highlighter pen, the emission
Hoinka NM, Fuhrmann-Lieker T.
europepmc   +4 more sources

Analysis of the Emission Features in CdSe/ZnS Quantum Dot-Doped Polymer Fibers

Photonics, 2023
The emission features of Cdse/ZnS quantum dots doped step-index polymer optical fibers are computationally analyzed in this paper. Spontaneous emission and amplified spontaneous emission were calculated by a theoretical model based on the rate equations ...
Xuefeng Peng, Zhijian Wu, Chen Ye, Yang Ding, Wei Liu   +4 more
doaj   +1 more source

Tailored light emission from color centers in nanodiamond using self-assembled photonic crystals

Frontiers in Nanotechnology, 2022
The defect centers in solid-state materials especially the nitrogen-vacancy (NV) centers in diamond have shown a tremendous potential for their utilization in quantum technology applications.
Sachin Sharma, Ashish, Rajesh V. Nair
doaj   +1 more source

Modification of the Emission Spectrum of a Quantum Emitter in the Vicinity of Bismuth Chalcogenide Microparticles

Photonics, 2023
We examine theoretically the effect of bismuth chalcogenide microparticles on the spontaneous emission of a double-V-type quantum emitter in free space.
Margarita-Georgia Papadaki, Nikolaos Kyvelos, Emmanuel Paspalakis, Vassilios Yannopapas   +3 more
doaj   +1 more source

Silicon cuboid nanoantenna with simultaneous large Purcell factor for electric dipole, magnetic dipole and electric quadrupole emission

Opto-Electronic Advances, 2022
The Purcell effect is commonly used to increase the spontaneous emission rate by modifying the local environment of a light emitter. Here, we propose a silicon dielectric cuboid nanoantenna for simultaneously enhancing electric dipole (ED), magnetic ...
Qiurong Deng, Jianfeng Chen, Li Long, Baoqin Chen, Huakang Yu, Zhiyuan Li   +5 more
doaj   +1 more source