Near-Infrared Continuous-Wave Light Driving a Two-Photon Photochromic Reaction with the Assistance of Localized Surface Plasmon

2009 ◽  
Vol 131 (35) ◽  
pp. 12623-12627 ◽  
Author(s):  
Yasuyuki Tsuboi ◽  
Ryosuke Shimizu ◽  
Tatsuya Shoji ◽  
Noboru Kitamura
Keyword(s):  
Surface Plasmon ◽  
Near Infrared ◽  
Continuous Wave ◽  
Localized Surface Plasmon ◽  
Two Photon ◽  
Photochromic Reaction ◽  
Continuous Wave Light

scholarly journals Near-infrared optical absorption enhanced in black silicon via Ag nanoparticle-induced localized surface plasmon

2014 ◽  
Vol 9 (1) ◽  
pp. 519 ◽  
Author(s):  
Peng Zhang ◽  
Shibin Li ◽  
Chunhua Liu ◽  
Xiongbang Wei ◽  
Zhiming Wu ◽  
...  
Keyword(s):  
Optical Absorption ◽  
Surface Plasmon ◽  
Near Infrared ◽  
Localized Surface Plasmon ◽  
Black Silicon ◽  
Ag Nanoparticle

Tunable localized surface plasmon resonances of asymmetric Au/SiO2/Au cross-shape nanobars

2014 ◽  
Vol 28 (17) ◽  
pp. 1450143 ◽  
Author(s):  
M. L. Wan ◽  
H. J. Du ◽  
Y. L. Song ◽  
F. Q. Zhou ◽  
K. J. Dai
Keyword(s):  
Electric Fields ◽  
Surface Plasmon ◽  
Near Infrared ◽  
Dipole Approximation ◽  
Localized Surface Plasmon ◽  
Surface Plasmon Resonances ◽  
Localized Surface Plasmon Resonances ◽  
Plasmon Resonances ◽  
Surface Enhanced Raman ◽  
Infrared Spectral

The plasmonic properties of asymmetric Au / SiO 2/ Au sandwiched cross-shape nanobars are investigated theoretically using the discrete dipole approximation (DDA) method. Two localized surface plasmon resonances are observed in the extinction spectra, which perform extreme sensitivity to the length and width of the nanobar and can be tuned easily throughout visible and into near-infrared spectral regions. The local electric fields around the nanobar are calculated and a pure electromagnetic Raman enhancement factor of about 106 can be achieved. In addition, compared to a monolayer gold nanobar, it exhibits more "hot spots" and stronger localized electric field enhancements. This plasmonic substrate provides potential applications in surface enhanced Raman scattering (SERS) and nonlinear optical devices.

Facile synthesis of urchin-like LaWO4Cl assemblies and their near-infrared photothermal conversion

Nanoscale ◽  
2019 ◽  
Vol 11 (30) ◽  
pp. 14237-14241 ◽  
Author(s):  
Lin Sun ◽  
Yang Shi ◽  
Mingcong Tang ◽  
Dong Wang ◽  
Yaping Tian ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Near Infrared ◽  
Localized Surface Plasmon ◽  
Facile Synthesis ◽  
Photothermal Conversion ◽  
Conversion Performance

The hierarchical urchin-like LaWO4Cl assemblies promote the photothermal conversion performance due to the localized surface plasmon resonance.

Near-Infrared Reflection Spectra of Copper Nanowire Array Structures

2015 ◽  
Vol 1118 ◽  
pp. 125-128
Author(s):  
Wen Li Dou ◽  
Wen Xu ◽  
Shao Hui Xu ◽  
Guang Tao Fei ◽  
Yi Ming Xiao
Keyword(s):  
Surface Plasmon ◽  
Room Temperature ◽  
Near Infrared ◽  
Nanowire Array ◽  
Localized Surface Plasmon ◽  
Reflection Spectra ◽  
Anodic Alumina Oxide ◽  
Alumina Oxide ◽  
Frequency Regime ◽  
Array Structures

We present a detailed study on near-infrared (NIR) reflection spectra of Cu nanowire arrays (NWAs) which are embedded in porous anodic alumina oxide templates and with pore diameters from 35 nm to 80 nm. We find that the NIR reflection of these samples is out of the frequency regime for surface-plasmon resonance induced by intra-and inter-band excitations. However, the intensity of the NIR reflection of Cu NWAs depends strongly on sample parameters and temperature. The measurements are carried out at temperatures setting to be 4 K, 77 K, 200 K, and at room temperature. The optical response of the Cu NWAs in NIR bandwidth is attributed to localized surface-plasmon oscillations and the NIR reflectance increases with temperature up to room-temperature. The physical mechanisms behind these interesting findings are discussed.

scholarly journals Ultrabroadband Absorption Enhancement via Hybridization of Localized and Propagating Surface Plasmons

Nanomaterials ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1625
Author(s):  
Tian Sang ◽  
Honglong Qi ◽  
Xun Wang ◽  
Xin Yin ◽  
Guoqing Li ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Near Infrared ◽  
Low Cost ◽  
Polarized Light ◽  
Wavelength Region ◽  
Transverse Magnetic ◽  
Localized Surface Plasmon ◽  
Absorption Enhancement ◽  
Geometrical Parameters ◽  
Light Illumination

Broadband metamaterial absorbers (MAs) are critical for applications of photonic and optoelectronic devices. Despite long-standing efforts on broadband MAs, it has been challenging to achieve ultrabroadband absorption with high absorptivity and omnidirectional characteristics within a comparatively simple and low-cost architecture. Here we design, fabricate, and characterize a novel compact Cr-based MA to achieve ultrabroadband absorption in the visible to near-infrared wavelength region. The Cr-based MA consists of Cr nanorods and Cr substrate sandwiched by three pairs of SiO2/Cr stacks. Both simulated and experimental results show that an average absorption over 93.7% can be achieved in the range of 400–1000 nm. Specifically, the ultrabroadband features result from the co-excitations of localized surface plasmon (LSP) and propagating surface plasmon (PSP) and their synergistic absorption effects, where absorption in the shorter and longer wavelengths are mainly contributed bythe LSP and PSP modes, respectively. The Cr-based MA is very robust to variations of the geometrical parameters, and angle-and polarization-insensitive absorption can be operated well over a large range of anglesunder both transverse magnetic(TM)- and transverse electric (TE)-polarized light illumination.

Semiconductor Plasmonic Nanocrystals with a Near-Infrared Localized Surface Plasmon Resonance

2018 ◽  
Vol 125 (5) ◽  
pp. 743-746
Author(s):  
A. A. Babaev ◽  
A. Dubavik ◽  
S. A. Cherevkov ◽  
P. S. Parfenov ◽  
M. A. Baranov ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Near Infrared ◽  
Localized Surface Plasmon
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