Photothermal structural modification of porous gold nanoshells via pulsed-laser irradiation: effects of laser wavelengths and surface conditions

2020 ◽  
Vol 22 (40) ◽  
pp. 23333-23341
Author(s):  
Tae-Hyeon Park ◽  
Dong-Won Jeong ◽  
Du-Jeon Jang
Keyword(s):  
Structural Modification ◽  
Pulsed Laser ◽  
Picosecond Pulse ◽  
Gold Nanoshells ◽  
Irradiation Effects ◽  
Surface Conditions ◽  
Porous Gold ◽  
Laser Fluences ◽  
Nanoparticle Surface ◽  
Pulsed Laser Irradiation

We demonstrate the detailed effects of laser wavelengths and nanoparticle surface conditions, as well as laser fluences, in the structural modification of porous gold nanoshells induced by picosecond pulse irradiation.

Surface Microstructure and Magnetic Properties of Laser-Processed Granular Co-Ag Films

1999 ◽  
Vol 562 ◽  
Author(s):  
E. Agostinelli ◽  
D. Fiorani ◽  
S. Foglia ◽  
S. Kaciulis ◽  
A. M. Testa ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Structural Modification ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Surface Microstructure ◽  
Electron Microscopies ◽  
Atomic Force ◽  
Field Sensitivity ◽  
Microstructure And Magnetic Properties ◽  
Pulsed Laser Irradiation

ABSTRACTCo-Ag films prepared by Pulsed Laser Deposition and showing GMR in the as deposited state, have been irradiated by excimer laser: the chemical and structural modification induced by such treatment have been studied by XPS and by atomic force and electron microscopies. The pulsed laser irradiation favors the nucleation of nanosized Co grains at Ag grain boundaries, resulting in an enhancement of the magnetoresistivity at low fields and low temperature. Indeed, after laser treatment, a doubled field sensitivity (δGMR/δH) at T=I0K, with respect to the untreated samples, has been observed. The correlation with the observed magnetic properties variations, is discussed.

Magnetostriction Related Effects in Pulsed Laser Irradiation of Amorphous Magnets

1997 ◽  
Vol 504 ◽  
Author(s):  
Monica Sorescu ◽  
S. A. Schafer
Keyword(s):  
Electron Microscopy ◽  
Metallic Glasses ◽  
Pulsed Laser ◽  
Alexandrite Laser ◽  
Complementary Information ◽  
Laser Fluences ◽  
Magnetostriction Constant ◽  
Amorphous Magnets ◽  
Scanning Electron ◽  
Pulsed Laser Irradiation

ABSTRACTSamples of Fe66Co18B15Si1, Fe40Ni38Mo4B18 and Fe72.6Cr22Al4.8Si0.3Y0.3 metallic glasses were irradiated with a pulsed alexandrite laser (λ=750 nm, τ=60 μs) using different laser fluences. Irradiation-induced structural and property modifications were characterized using Mössbauer spectroscopy. Complementary information was obtained from hysteresis loop measurements and scanning electron microscopy (SEM). The experimental data obtained demonstrate the key role played by the magnetostriction constant in explaining the mechanism of irradiation-induced phase transformations in amorphous magnets.

Comparison of electron beam and pulsed laser irradiation effects in Fe80B20

1994 ◽  
Vol 92 (1) ◽  
pp. 1347-1353 ◽  
Author(s):  
M. Sorescu ◽  
E. T. Knobbe ◽  
D. Barb ◽  
D. Sorescu ◽  
I. Bibicu
Keyword(s):  
Electron Beam ◽  
Laser Irradiation ◽  
Pulsed Laser ◽  
Irradiation Effects ◽  
Pulsed Laser Irradiation

scholarly journals Scalable Routes to Gold Nanoshells with Tunable Sizes and Response to Near-Infrared Pulsed-Laser Irradiation

Small ◽  
2008 ◽  
Vol 4 (8) ◽  
pp. 1183-1195 ◽  
Author(s):  
Brian G. Prevo ◽  
Shelley A. Esakoff ◽  
Alexander Mikhailovsky ◽  
Joseph A. Zasadzinski
Keyword(s):  
Laser Irradiation ◽  
Near Infrared ◽  
Pulsed Laser ◽  
Gold Nanoshells ◽  
Pulsed Laser Irradiation

Modification of structural and transport properties in epitaxial YBa2CU3Ox films by pulsed laser irradiation

1993 ◽  
Vol 3 (12) ◽  
pp. 2173-2188
Author(s):  
N. G. Chechenin ◽  
A. V. Chernysh ◽  
V. V. Korneev ◽  
E. V. Monakhov ◽  
B. V. Seleznev
Keyword(s):  
Transport Properties ◽  
Laser Irradiation ◽  
Pulsed Laser ◽  
Pulsed Laser Irradiation

PULSED LASER IRRADIATION OF NICKEL THIN FILMS ON SILICON

1983 ◽  
Vol 44 (C5) ◽  
pp. C5-449-C5-454 ◽  
Author(s):  
P. Baeri ◽  
M. G. Grimaldi ◽  
E. Rimini ◽  
G. Celotti
Keyword(s):  
Thin Films ◽  
Laser Irradiation ◽  
Pulsed Laser ◽  
Nickel Thin Films ◽  
Pulsed Laser Irradiation

FUNDAMENTALS OF PULSED LASER IRRADIATION OF SILICON

1983 ◽  
Vol 44 (C5) ◽  
pp. C5-23-C5-36 ◽  
Author(s):  
H. Kurz ◽  
L. A. Lompré ◽  
J. M. Liu
Keyword(s):  
Laser Irradiation ◽  
Pulsed Laser ◽  
Pulsed Laser Irradiation
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