scholarly journals Spontaneous Emission Enhancement in Strain-Induced WSe2 Monolayer-Based Quantum Light Sources on Metallic Surfaces

ACS Photonics ◽  
2018 ◽  
Vol 5 (5) ◽  
pp. 1919-1926 ◽  
Author(s):  
Laxmi Narayan Tripathi ◽  
Oliver Iff ◽  
Simon Betzold ◽  
Łukasz Dusanowski ◽  
Monika Emmerling ◽  
...  
Keyword(s):  
Spontaneous Emission ◽  
Light Sources ◽  
Metallic Surfaces ◽  
Emission Enhancement

Control of Förster energy transfer in the vicinity of metallic surfaces and hyperbolic metamaterials

2015 ◽  
Vol 178 ◽  
pp. 395-412 ◽  
Author(s):  
T. U. Tumkur ◽  
J. K. Kitur ◽  
C. E. Bonner ◽  
A. N. Poddubny ◽  
E. E. Narimanov ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Spontaneous Emission ◽  
Practical Importance ◽  
Index Of Refraction ◽  
Metallic Surfaces ◽  
Dielectric Media ◽  
Plasmonic Structures ◽  
Donor And Acceptor ◽  
Förster Energy Transfer ◽  
Photonic States

Optical cavities, plasmonic structures, photonic band crystals and interfaces, as well as, generally speaking, any photonic media with homogeneous or spatially inhomogeneous dielectric permittivity (including metamaterials) have local densities of photonic states, which are different from that in vacuum. These modified density of states environments are known to control both the rate and the angular distribution of spontaneous emission. In the present study, we question whether the proximity to metallic and metamaterial surfaces can affect other physical phenomena of fundamental and practical importance. We show that the same substrates and the same nonlocal dielectric environments that boost spontaneous emission, also inhibit Förster energy transfer between donor and acceptor molecules doped into a thin polymeric film. This finding correlates with the fact that in dielectric media, the rate of spontaneous emission is proportional to the index of refractionn, while the rate of the donor–acceptor energy transfer (in solid solutions with a random distribution of acceptors) is proportional ton−1.5. This heuristic correspondence suggests that other classical and quantum phenomena, which in regular dielectric media depend onn, can also be controlled with custom-tailored metamaterials, plasmonic structures, and cavities.

Spontaneous emission enhancement using hyperbolic metamaterials

2011 ◽  
Author(s):  
Harish N S Krishnamoorthy ◽  
Zubin Jacob ◽  
Evgenii Narimanov ◽  
Ilona Kretzschmar ◽  
Vinod M. Menon
Keyword(s):  
Spontaneous Emission ◽  
Hyperbolic Metamaterials ◽  
Emission Enhancement

Experimental Study of Spontaneous-Emission Enhancement in Tamm Plasmon Structures with an Organic Active Region

2018 ◽  
Vol 52 (11) ◽  
pp. 1420-1423 ◽  
Author(s):  
K. M. Morozov ◽  
K. A. Ivanov ◽  
N. Selenin ◽  
S. Mikhrin ◽  
D. de Sa Pereira ◽  
...  
Keyword(s):  
Experimental Study ◽  
Active Region ◽  
Spontaneous Emission ◽  
Emission Enhancement

scholarly journals Random lasing and amplified spontaneous emission from silk inverse opals: Optical gain enhancement via protein scatterers

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Muhammad Umar ◽  
Kyungtaek Min ◽  
Sookyoung Kim ◽  
Sunghwan Kim
Keyword(s):  
Spontaneous Emission ◽  
High Surface ◽  
Optical Gain ◽  
Amplified Spontaneous Emission ◽  
Biological Tissues ◽  
Light Sources ◽  
Inverse Opal ◽  
Random Lasing ◽  
Protein Film ◽  
Gain Enhancement

Abstract Gain amplification and coherent lasing lines through random lasing (RL) can be produced by a random distribution of scatterers in a gain medium. If these amplified light sources can be seamlessly integrated into biological systems, they can have useful bio-optical applications, such as highly accurate sensing and high-resolution imaging. In this paper, a fully biocompatible light source showing RL and amplified spontaneous emission (ASE) with a reduced threshold is reported. Random cavities were induced in a biocompatible silk protein film by incorporating an inverse opal with an inherent disorder and a biocompatible dye for optical gain into the film. By choosing the appropriate air-sphere diameters, clear RL spikes in the emission spectra that were clearly distinguished from those of the ASE were observed in the silk inverse opal (SIO) with optical gain. Additionally, the RL output exhibited spatial coherence; however, the ASE did not. The high surface-to-volume ratio and amplification of the SIO led to highly efficient chemosensing in the detection of hydrogen chloride vapor. Moreover, SIO could be miniaturized to be made suitable for injection into biological tissues and obtain RL signals. Our results, which open the way for the development of a new generation of miniaturized bio-lasers, may be considered as the first example of engineered RL with biocompatible materials.

Measurement of spontaneous-emission enhancement near the one-dimensional photonic band edge of semiconductor heterostructures

1996 ◽  
Vol 53 (4) ◽  
pp. 2799-2803 ◽  
Author(s):  
Michael D. Tocci ◽  
Michael Scalora ◽  
Mark J. Bloemer ◽  
Jonathan P. Dowling ◽  
Charles M. Bowden
Keyword(s):  
Spontaneous Emission ◽  
Semiconductor Heterostructures ◽  
Band Edge ◽  
One Dimensional ◽  
Emission Enhancement ◽  
The One ◽  
Photonic Band

Spontaneous emission enhancement in quantum cascade structures in the TeraHertz domain

2007 ◽  
Vol 4 (2) ◽  
pp. 524-527 ◽  
Author(s):  
Yanko Todorov ◽  
Isabelle Sagnes ◽  
Ulf Gennser ◽  
Nöel Coron ◽  
Christophe Minot ◽  
...  
Keyword(s):  
Spontaneous Emission ◽  
Quantum Cascade ◽  
Emission Enhancement ◽  
Quantum Cascade Structures
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