Time-resolved electron dynamics and transport imaging

Walter E. Bron; Carlos German Suarez; Tibor Juhasz

doi:10.1117/12.218366

1 September 1995 Time-resolved electron dynamics and transport imaging

Walter E. Bron, Carlos German Suarez, Tibor Juhasz

Proceedings Volume 2521, Time-Resolved Electron and X-Ray Diffraction; (1995) https://doi.org/10.1117/12.218366
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

The transport of electronic carriers in gold films excited by femtosecond laser pulses is observed to contain both a ballistic and an interactive component and is, accordingly, well outside thermal equilibrium. The ballistic component is observed to traverse up to 400 nm through the film at near the Fermi velocity. The interactive component undergoes various scattering events and requires a correspondingly longer time to traverse the film. The carriers which originate through laser excitation at the 'front' surface of the film arrive at the 'back' surface and influence the reflectivity. The relative reflectivity, (Delta) R/R, at the back surface is measured with a time delayed probe beam which produces information on the temporal evolution of the coupled dynamics and transport of the carriers. Experimental results are compared to a theoretical basis in terms of the Fermi-liquid theory and 1D carrier transport. Agreement between experiment and theory is remarkably good. Electron transport is also influenced by the presence of multiple metallic layers, for example, the carrier arrival profile at the back surface in gold differs from that of a corresponding Au-Ti-Au multilayer. The difference permits observation of an 'image' of the gold and multilayer interface.

Citation Download Citation

Walter E. Bron, Carlos German Suarez, and Tibor Juhasz "Time-resolved electron dynamics and transport imaging", Proc. SPIE 2521, Time-Resolved Electron and X-Ray Diffraction, (1 September 1995); https://doi.org/10.1117/12.218366

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
11 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Particles

Gold

Scattering

Electron transport

Phonons

Thin films

Multilayers

Show All Keywords

Keywords/Phrases

Search In:

Publication Years