Processes underlying the laser photochromic effect in colloidal plasmonic nanoparticle aggregates

2020 ◽  
Vol 29 (3) ◽  
pp. 037802
Author(s):  
A E Ershov ◽  
V S Gerasimov ◽  
I L Isaev ◽  
A P Gavrilyuk ◽  
S V Karpov
Keyword(s):  
Plasmonic Nanoparticle ◽  
Nanoparticle Aggregates ◽  
Photochromic Effect

Fano Resonances in Plasmonic Nanoparticle Aggregates†

2009 ◽  
Vol 113 (16) ◽  
pp. 4028-4034 ◽  
Author(s):  
Nikolay A. Mirin ◽  
Kui Bao ◽  
Peter Nordlander
Keyword(s):  
Fano Resonances ◽  
Plasmonic Nanoparticle ◽  
Nanoparticle Aggregates

scholarly journals Simple Composite Dipole Model for the Optical Modes of Strongly-Coupled Plasmonic Nanoparticle Aggregates

2012 ◽  
Vol 116 (47) ◽  
pp. 25044-25051 ◽  
Author(s):  
Richard W. Taylor ◽  
Rubén Esteban ◽  
Sumeet Mahajan ◽  
Roger Coulston ◽  
Oren A. Scherman ◽  
...  
Keyword(s):  
Dipole Model ◽  
Strongly Coupled ◽  
Plasmonic Nanoparticle ◽  
Nanoparticle Aggregates ◽  
Optical Modes

Size-dependent emission of a dipole coupled to a metal nanoparticle

MRS Advances ◽  
2020 ◽  
Vol 5 (62) ◽  
pp. 3315-3325
Author(s):  
Viktoriia Savchuk ◽  
Arthur R. Knize ◽  
Pavlo Pinchuk ◽  
Anatoliy O. Pinchuk
Keyword(s):  
Numerical Analysis ◽  
Quantum Yield ◽  
Electric Dipole ◽  
Incident Radiation ◽  
Metal Nanoparticle ◽  
Plasmonic Nanoparticle ◽  
Size Dependent ◽  
Emission Enhancement ◽  
Electric Dipoles

AbstractWe present a systematic numerical analysis of the quantum yield of an electric dipole coupled to a plasmonic nanoparticle. We observe that the yield is highly dependent on the distance between the electric dipole and the nanoparticle, the size and permittivity of the nanoparticle, and the wavelength of the incident radiation. Our results indicate that enhancement of the quantum yield is only possible for electric dipoles coupled to a nanoparticle with a radius of 20 nm or larger. As the size of the nanoparticle is increased, emission enhancement occurs at wavelengths dependent on the coupling distance.

HEAT GENERATION IN IRRADIATED SOLUTIONS CONTAINING MAGNESIUM NANOPARTICLE AGGREGATES

2018 ◽  
Author(s):  
Xi Gu ◽  
Victoria Timchenko ◽  
Z. Clift ◽  
M. Jackson ◽  
Jing Liu ◽  
...  
Keyword(s):  
Heat Generation ◽  
Nanoparticle Aggregates

scholarly journals Strong coupling of a plasmonic nanoparticle to a semiconductor nanowire

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Yingying Jin ◽  
Liu Yang ◽  
Chenxinyu Pan ◽  
Zhangxing Shi ◽  
Bowen Cui ◽  
...  
Keyword(s):  
Strong Coupling ◽  
Coupled System ◽  
Resonance Wavelength ◽  
Transverse Magnetic ◽  
Spectral Shift ◽  
Au Nanoparticle ◽  
Localized Surface Plasmon ◽  
Nanowire Diameter ◽  
Plasmonic Nanoparticle ◽  
Au Nanosphere

Abstract By placing a single Au nanoparticle on the surface of a cadmium sulfide (CdS) nanowire, we demonstrate strong coupling of localized surface plasmon resonance (LSPR) modes in the nanoparticle and whispering gallery modes (WGMs) in the nanowire. For a 50-nm-diameter Au-nanosphere particle, strong coupling occurs when the nanowire diameter is between 300 and 600 nm, with a mode splitting up to 80 meV. Using a temperature-induced spectral shift of the resonance wavelength, we also observe the anticrossing behavior in the strongly coupled system. In addition, since the Au nanosphere has spherical symmetry, the supported LSPR mode can be selectively coupled with transverse electric (TE) and transverse magnetic (TM) WGMs in the nanowire. The ultracompact strong-coupling system shown here may provide a versatile platform for studying hybrid “photon–plasmon” nanolasers, nonlinear optical devices, and nanosensors.

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