Contributions from radiation damping and surface scattering to the linewidth of the longitudinal plasmon band of gold nanorods: a single particle study

2006 ◽  
Vol 8 (30) ◽  
pp. 3540 ◽  
Author(s):  
Carolina Novo ◽  
Daniel Gomez ◽  
Jorge Perez-Juste ◽  
Zhenyuan Zhang ◽  
Hristina Petrova ◽  
...  
Keyword(s):  
Gold Nanorods ◽  
Single Particle ◽  
Radiation Damping ◽  
Surface Scattering ◽  
Plasmon Band

Colloidal Plasmonic Nanostar Antennas with Wide Range Resonance Tunability

2019 ◽  
Author(s):  
Theodoros Tsoulos ◽  
Supriya Atta ◽  
Maureen Lagos ◽  
Michael Beetz ◽  
Philip Batson ◽  
...  
Keyword(s):  
Single Particle ◽  
Structural Complexity ◽  
Field Enhancement ◽  
Hot Electron ◽  
Structure Property ◽  
Plasmon Band ◽  
Gold Nanostars ◽  
Wide Range ◽  
Particle Level ◽  
Spectrally Resolved

<div>Gold nanostars display exceptional field enhancement properties and tunable resonant modes that can be leveraged to create effective imaging tags or phototherapeutic agents, or to design novel hot-electron based photocatalysts. From a fundamental standpoint, they represent important tunable platforms to study the dependence of hot carrier energy and dynamics on plasmon band intensity and position. Toward the realization of these platforms, holistic approaches taking into account both theory and experiments to study the fundamental behavior of these</div><div>particles are needed. Arguably, the intrinsic difficulties underlying this goal stem from the inability to rationally design and effectively synthesize nanoparticles that are sufficiently monodispersed to be employed for corroborations of the theoretical results without the need of single particle experiments. Herein, we report on our concerted computational and experimental effort to design, synthesize, and explain the origin and morphology-dependence of the plasmon modes of a novel gold nanostar system, with an approach that builds upon the well-known plasmon hybridization model. We have synthesized monodispersed samples of gold nanostars with finely tunable morphology employing seed-mediated colloidal protocols, and experimentally observed narrow and spectrally resolved harmonics of the primary surface plasmon resonance mode both at the single particle level (via electron energy loss spectroscopy) and in ensemble (by UV-Vis and ATR-FTIR spectroscopies). Computational results on complex anisotropic gold nanostructures are validated experimentally on samples prepared colloidally, underscoring their importance as ideal testbeds for the study of structure-property relationships in colloidal nanostructures of high structural complexity.</div>

Single Particle Plasmon Spectroscopy of Silver Nanowires and Gold Nanorods

Nano Letters ◽  
2008 ◽  
Vol 8 (10) ◽  
pp. 3200-3204 ◽  
Author(s):  
Moussa NʼGom ◽  
Jan Ringnalda ◽  
John F. Mansfield ◽  
Ashish Agarwal ◽  
Nicholas Kotov ◽  
...  
Keyword(s):  
Gold Nanorods ◽  
Single Particle ◽  
Silver Nanowires ◽  
Particle Plasmon

Single particle SERS signal on gold nanorods: comparative study of diarylethene photochromic isomers

2015 ◽  
Vol 17 (11) ◽  
pp. 114018 ◽  
Author(s):  
C Julien-Rabant ◽  
A Débarre ◽  
R Métivier ◽  
G Laurent
Keyword(s):  
Comparative Study ◽  
Gold Nanorods ◽  
Single Particle ◽  
Sers Signal

Single particle study: size and chemical effects on plasmon damping at the interface between adsorbate and anisotropic gold nanorods

2018 ◽  
Vol 20 (34) ◽  
pp. 22197-22202 ◽  
Author(s):  
Seong Woo Moon ◽  
Philippe Vuka Tsalu ◽  
Ji Won Ha
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Gold Nanorods ◽  
Plasmon Resonance ◽  
Single Particle ◽  
Localized Surface Plasmon Resonance ◽  
Localized Surface Plasmon ◽  
Chemical Effects

Plasmon damping in gold nanorods (AuNRs) results in the broadening of the localized surface plasmon resonance (LSPR) linewidth.

Nanoscale plasmon–exciton interaction: the role of radiation damping and mode-volume in determining coupling strength

Nanoscale ◽  
2020 ◽  
Vol 12 (21) ◽  
pp. 11612-11618
Author(s):  
Manish Kumar ◽  
Jyotirban Dey ◽  
Mrigank Singh Verma ◽  
Manabendra Chandra
Keyword(s):  
Single Particle ◽  
Coupling Strength ◽  
Radiation Damping ◽  
Exact Role ◽  
Exciton Interaction ◽  
Exciton Coupling ◽  
Single Particle Spectroscopy ◽  
Mode Volume

Single particle spectroscopy unravels the exact role of one specific plasmon dephasing channel, radiation damping, in controlling plasmon–exciton coupling in Au nanorod-J-aggregate hybrids.

Observation of time-dependent single-particle light scattering from gold nanorods and nanospheres by using unpolarized dark-field microscopy

2006 ◽  
Author(s):  
Vladimir A. Bogatyrev ◽  
Lev A. Dykman ◽  
Anna V. Alekseeva ◽  
Boris N. Khlebtsov ◽  
Anna P. Novikova ◽  
...  
Keyword(s):  
Light Scattering ◽  
Gold Nanorods ◽  
Single Particle ◽  
Dark Field ◽  
Time Dependent ◽  
Dark Field Microscopy

Gold Nanorods as Novel Nonbleaching Plasmon-Based Orientation Sensors for Polarized Single-Particle Microscopy

Nano Letters ◽  
2005 ◽  
Vol 5 (2) ◽  
pp. 301-304 ◽  
Author(s):  
Carsten Sönnichsen ◽  
A. Paul Alivisatos
Keyword(s):  
Gold Nanorods ◽  
Single Particle

Single-particle spectroscopy and defocused imaging of anisotropic gold nanorods by total internal reflection scattering microscopy

The Analyst ◽  
2020 ◽  
Vol 145 (18) ◽  
pp. 6038-6044 ◽  
Author(s):  
Jaeran Lee ◽  
Geun Wan Kim ◽  
Ji Won Ha
Keyword(s):  
Gold Nanorods ◽  
Single Particle ◽  
Total Internal Reflection ◽  
Internal Reflection ◽  
Single Particle Spectroscopy ◽  
Defocused Imaging

Total internal reflection scattering (TIRS) microscopy provided higher S/N ratio and more accurate angular information of gold nanorods.

In vivo Monitoring of Gold Nanorods and Tissue Damage Mediated with Their Photothermal Effect

2008 ◽  
Vol 1138 ◽  
Author(s):  
Takuro Niidome ◽  
Yasuyuki Akiyama ◽  
Kohei Shimoda ◽  
Takahito Kawano ◽  
Takeshi Mori ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Gold Nanorods ◽  
Near Infrared ◽  
Tumor Therapy ◽  
Infrared Light ◽  
Photothermal Effect ◽  
Integrating Sphere ◽  
Plasmon Band ◽  
Near Infrared Light

AbstractGold nanorods have a strong surface plasmon band at the near infrared region. The absorbed light energy is then converted to heat. Since near infrared light can penetrate deeply into tissue, gold nanorods are expected to be used as a contrast agent for bioimaging using the near infrared light and photosensitizers for photothermal therapy. The surface plasmon bands of intravenously injected the gold nanorods were directly monitored from the mouse abdomen by using a spectrophotometer equipped with an integrating sphere. The absorbance at 900 nm from PEG5,000-modified gold nanorods immediately increased after injection and reached a plateau. The injection of phosphatidylcholine-modified gold nanorods also increased the absorbance at 900 nm, but the absorbance decreased single exponentially with a 1.3-min half-life. To demonstrate photothermal tumor therapy, the PEG-modified gold nanorods were directly injected into subcutaneous tumors in mice, then, near infrared laser light was irradiated to the tumor. After the treatment, significant suppression of tumor growth was observed.

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