Electron Dynamics in Copper Metallic Nanoparticles Probed with Femtosecond Optical Pulses

1995 ◽  
Vol 75 (25) ◽  
pp. 4702-4705 ◽  
Author(s):  
J. -Y. Bigot ◽  
J. -Y. Merle ◽  
O. Cregut ◽  
A. Daunois
Keyword(s):  
Metallic Nanoparticles ◽  
Electron Dynamics ◽  
Optical Pulses

scholarly journals Terahertz Photoconductivity Spectra of Electrodeposited Thin Bi Films

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3150
Author(s):  
Ignas Nevinskas ◽  
Zenius Mockus ◽  
Remigijus Juškėnas ◽  
Ričardas Norkus ◽  
Algirdas Selskis ◽  
...  
Keyword(s):  
Spatial Separation ◽  
Thz Radiation ◽  
Electron Dynamics ◽  
Optical Pulses ◽  
Electrolyte Additive ◽  
Spectra Analysis ◽  
Grain Sizes ◽  
Carrier Scattering ◽  
Bismuth Films ◽  
Triton X

Electron dynamics in the polycrystalline bismuth films were investigated by measuring emitted terahertz (THz) radiation pulses after their photoexcitation by tunable wavelength femtosecond duration optical pulses. Bi films were grown on metallic Au, Pt, and Ag substrates by the electrodeposition method with the Triton X-100 electrolyte additive, which allowed us to obtain more uniform films with consistent grain sizes on any substrate. It was shown that THz pulses are generated due to the spatial separation of photoexcited electrons and holes diffusing from the illuminated surface at different rates. The THz photoconductivity spectra analysis has led to a conclusion that the thermalization of more mobile carriers (electrons) is dominated by the carrier–carrier scattering rather than by their interaction with the lattice.

scholarly journals Analytical Theory of Attosecond Transient Absorption Spectroscopy of Perturbatively Dressed Systems

2019 ◽  
Vol 9 (7) ◽  
pp. 1350
Author(s):  
Daria Kolbasova ◽  
Robin Santra
Keyword(s):  
Perturbation Theory ◽  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Electronic States ◽  
Theoretical Description ◽  
Transient Absorption Spectroscopy ◽  
Electron Dynamics ◽  
Optical Pulses ◽  
Absorption Signal ◽  
Level Model

A theoretical description of attosecond transient absorption spectroscopy for temporally and spatially overlapping XUV and optical pulses is developed, explaining the signals one can obtain in such an experiment. To this end, we employ a two-stage approach based on perturbation theory, which allows us to give an analytical expression for the transient absorption signal. We focus on the situation in which the attosecond XUV pulse is used to create a coherent superposition of electronic states. As we explain, the resulting dynamics can be detected in the spectrum of the transmitted XUV pulse by manipulating the electronic wave packet using a carrier-envelope-phase-stabilized optical dressing pulse. In addition to coherent electron dynamics triggered by the attosecond pulse, the transmitted XUV spectrum encodes information on electronic states made accessible by the optical dressing pulse. We illustrate these concepts through calculations performed for a few-level model.

Self organized growth and ultrafast electron dynamics of metallic nanoparticles

1998 ◽  
Vol 318 (1-2) ◽  
pp. 73-75 ◽  
Author(s):  
A. Stella ◽  
P. Tognini ◽  
A. Cavalleri ◽  
A.M. Malvezzi ◽  
M. Nisoli ◽  
...  
Keyword(s):  
Metallic Nanoparticles ◽  
Electron Dynamics ◽  
Self Organized ◽  
Ultrafast Electron Dynamics

Electron dynamics in metallic nanoparticles

2000 ◽  
Vol 251 (1-3) ◽  
pp. 181-203 ◽  
Author(s):  
J.-Y. Bigot ◽  
V. Halté ◽  
J.-C. Merle ◽  
A. Daunois
Keyword(s):  
Metallic Nanoparticles ◽  
Electron Dynamics

scholarly journals Electron dynamics in chromium probed with 20-fs optical pulses

2003 ◽  
Vol 68 (11) ◽  
Author(s):  
H. Hirori ◽  
T. Tachizaki ◽  
O. Matsuda ◽  
O. B. Wright
Keyword(s):  
Electron Dynamics ◽  
Optical Pulses

Hot-Electron Dynamics and Thermalization in Small Metallic Nanoparticles

ACS Photonics ◽  
2016 ◽  
Vol 3 (9) ◽  
pp. 1637-1646 ◽  
Author(s):  
J. R. M. Saavedra ◽  
Ana Asenjo-Garcia ◽  
F. Javier García de Abajo
Keyword(s):  
Metallic Nanoparticles ◽  
Hot Electron ◽  
Electron Dynamics

scholarly journals Plasmon Response and Electron Dynamics in Charged Metallic Nanoparticles

Langmuir ◽  
2016 ◽  
Vol 32 (11) ◽  
pp. 2829-2840 ◽  
Author(s):  
Mario Zapata Herrera ◽  
Javier Aizpurua ◽  
Andrey K. Kazansky ◽  
Andrei G. Borisov
Keyword(s):  
Metallic Nanoparticles ◽  
Electron Dynamics

Coherent acoustic oscillations in metallic nanoparticles generated with femtosecond optical pulses

1997 ◽  
Vol 55 (20) ◽  
pp. R13424-R13427 ◽  
Author(s):  
M. Nisoli ◽  
S. De Silvestri ◽  
A. Cavalleri ◽  
A. M. Malvezzi ◽  
A. Stella ◽  
...  
Keyword(s):  
Metallic Nanoparticles ◽  
Acoustic Oscillations ◽  
Optical Pulses
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