Results 41 to 50 of about 438 (166)
Design of Surface Plasmon Nanolaser Based on MoS2
Applied Sciences, 2018 The paper has proposed a new structure based on MoS2. The electric field distribution, the locality and the loss of the mode, and the threshold under different geometric shapes and parameters are investigated using COMSOL Multiphysics software, based on ...
Litu Xu +4 more
doaj +1 more source
Nanomaterials, 2022 Owing to the high contrast of the refractive indices at the end facets of a nanowire, lasing emission can be achieved in an individual nanowire without external, reflected feedback.
Qun Yu, Wei Wei, Xin Yan, Xia Zhang
doaj +1 more source
Plasmonic Bowtie Nanolaser Arrays [PDF]
Nano Letters, 2012 Plasmonic lasers exploit strong electromagnetic field confinement at dimensions well below the diffraction limit. However, lasing from an electromagnetic hot spot supported by discrete, coupled metal nanoparticles (NPs) has not been explicitly demonstrated to date. We present a new design for a room-temperature nanolaser based on three-dimensional (3D)
Jae Yong, Suh +6 more
openaire +2 more sources
Non-obstructive intracellular nanolasers [PDF]
Nature Communications, 2018 AbstractMolecular dyes, plasmonic nanoparticles and colloidal quantum dots are widely used in biomedical optics. Their operation is usually governed by spontaneous processes, which results in broad spectral features and limited signal-to-noise ratio, thus restricting opportunities for spectral multiplexing and sensing.
Alasdair H. Fikouras +6 more
openaire +5 more sources
Zero Crosstalk Regime Direct Modulation of Mutually Coupled Nanolasers
IEEE Photonics Journal, 2017 The modulation properties of dually modulated mutually coupled nanolasers have been analysed using rate equations which include the Purcell cavity-enhanced spontaneous emission factor F and the spontaneous emission coupling factor β.
Hong Han, K. Alan Shore
doaj +1 more source
Physical Review A, 2005 A "dipole" laser is proposed consisting of a nanoparticle and a two-level system with population inversion. If the threshold conditions are fulfilled, the dipole interaction between the two-level system and the nanoparticle leads to coherent oscillations in the polarization of the particles, even in the absence of an external electromagnetic ...
I. E. Protsenko +4 more
openaire +3 more sources
Advanced Science, EarlyView.This work demonstrates a paradigm‐shifting strategy to simultaneously achieve broadband wavelength tunability and single‐mode control within a single perovskite microwire structure. Using a facile heating‐assisted solid–solid anion‐exchange strategy, we synthesized phase‐pure CsPbClxBr3‐x microwires that exhibit the widest reported continuous lasing ...
Bingwang Yang +7 more
wiley +1 more source
, 2021 Light emitters are bound to strongly interact with light through enhanced absorption and scattering, which imposes limitations on the design and performance of photonic devices such as solar cells, nanoantennas, and (nano) lasers. Overcoming these limitations forces the use of ineffective nonreciprocity approaches or separation of radiation and ...
Lepeshov, Sergey +2 more
openaire +2 more sources
Advanced Science, EarlyView.Green and scalable synthesis of CsPbBr3 perovskite quantum dots using bio‐sourced lecithin and hexane enables single‐batch production over 10 grams. Suppressed Auger recombination and electron‐phonon coupling yields 95% PLQY, enhanced stability, and low ASE thresholds of 230.4 (ns) and 50.1 (fs) µJ cm−2 in neat films. ABSTRACT Halide perovskite quantum
Yongfeng Liu +10 more
wiley +1 more source
Semiconductor nanolasers [PDF]
physica status solidi (b), 2010 AbstractSemiconductor nanolasers represent the current frontier of research in the confluencing area of nanotechnology (or nanophotonics) and semiconductor lasers. In this paper, we review some of the most exciting progress made recently in the area.
openaire +2 more sources