High-Order Nonlinearity of Surface Plasmon Resonance in Au Nanoparticles: Paradoxical Combination of Saturable and Reverse-Saturable Absorption

2015 ◽  
Vol 3 (10) ◽  
pp. 1342-1348 ◽  
Author(s):  
Shuxian Wang ◽  
Yuxia Zhang ◽  
Rui Zhang ◽  
Haohai Yu ◽  
Huaijin Zhang ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Au Nanoparticles ◽  
High Order ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
High Order Nonlinearity

scholarly journals Hydrogen-Free Diamond Like Carbon Films with Embedded Cu Nanoparticles: Structure, Composition and Reverse Saturable Absorption Effect

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 760
Author(s):  
Meškinis ◽  
Vasiliauskas ◽  
Viskontas ◽  
Andrulevičius ◽  
Guobienė ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Carbon Films ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Diamond Like Carbon ◽  
Optical Absorbance ◽  
Wide Range ◽  
Absorbance Spectra

In the present research, hydrogen-free diamond like carbon films with embedded copper nanoparticles (DLC:Cu) were grown by simultaneous DC magnetron sputtering of the graphite and copper targets. X-ray photoelectron spectroscopy was used to define the composition of the samples. Atomic force microscopy studies of diamond, like carbon films containing different amount of copper, revealed wide range of the surface morphologies as well as sizes and shapes of the embedded copper nanoclusters. Raman scattering spectra of all the DLC:Cu films investigated were typical for diamond-like carbon (including samples containing more than 60 at.% of copper). sp3/sp2 carbon bond ratio in the films decreased with the increase of the Cu amount in the films. According to the optical absorbance measurements, the surface plasmon resonance related absorption peak of DLC:Cu films was only detected in the films containing 28.45 at.% Cu. For the diamond like carbon films containing more than 40 at.% Cu, a further increase of Cu amount in the nanocomposite resulted in minor changes of the absorbance spectra. Some correlation between the changes of the samples surface morphology as well as phase structure and optical absorbance spectra of the films was found. In all cases, reverse-saturable absorption of the DLC:Cu films was observed. For some DLC:Cu films damage of the sample occurred at higher light fluences that can be related to the heating that is caused by the surface plasmon resonance effect.

scholarly journals Surface Plasmon Resonance Dependent Third-Order Optical Nonlinearities of Silver Nanoplates

Photonics ◽  
2021 ◽  
Vol 8 (8) ◽  
pp. 299
Author(s):  
Marcello Condorelli ◽  
Vittorio Scardaci ◽  
Mario Pulvirenti ◽  
Luisa D’Urso ◽  
Fortunato Neri ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Optical Limiting ◽  
Pulse Generation ◽  
Saturable Absorption ◽  
Nanosecond Laser ◽  
Reverse Saturable Absorption ◽  
Optical Nonlinearities ◽  
Third Order

A systematic study of the surface plasmon resonance (SPR)-dependent nonlinear optical response of Ag nanoplates is presented and discussed. The Ag nanoplates were synthesized using the well-known seed-mediated growth method. By performing the z-scan method with a nanosecond laser (532 nm, 5 ns), the optical nonlinearities of the Ag nanoplates, prepared tuning the SPR contribution in the 400–1000 nm range, were determined. The results showed a SPR-related competition between the saturable absorption and reverse saturable absorption mechanisms, while the nonlinear refraction changed from self-defocusing to self-focusing. Furthermore, the scattering effects contribute to determine the nature of the optical limiting response. The observed SPR-tunable third order optical nonlinearities make Ag nanoplates a suitable candidate to be used in different fields, i.e., laser pulse generation, optical limiting, or bio-imaging applications.

Enhanced surface plasmon resonance with the modified catalytic growth of Au nanoparticles

2007 ◽  
Vol 22 (6) ◽  
pp. 1106-1110 ◽  
Author(s):  
Xiaohai Yang ◽  
Qing Wang ◽  
Kemin Wang ◽  
Weihong Tan ◽  
Huimin Li
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Au Nanoparticles ◽  
Catalytic Growth ◽  
Enhanced Surface

Dielectric domain distribution on Au nanoparticles revealed by localized surface plasmon resonance

2018 ◽  
Vol 6 (44) ◽  
pp. 12038-12044 ◽  
Author(s):  
Yi Luo ◽  
Yadong Zhou ◽  
Shengli Zou ◽  
Jing Zhao
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Au Nanoparticles ◽  
Extinction Spectrum ◽  
Localized Surface Plasmon ◽  
Uniform Layer

The LSPR of Au nanospheres shows almost no shift in the extinction spectrum with attachment of a silica domain but considerable shift with a uniform layer of silica, indicating LSPR can be used to differentiate the segregated/uniform dielectric distribution.

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