Confinement effects on the femtosecond electron energy relaxation in tin nanoparticles

Author

Stella, Angiolino ; Nisoli, Mauro ; De Silvestri, S. ; Svelto, O. ; Lanzani, Guglielmo ; Cheyssac, P. ; Kofman, R.

Author_Institution

Dipartimento di Fisica A. Volta, Pavia Univ., Italy

fYear

1996

fDate

7-7 June 1996

Firstpage

166

Lastpage

167

Abstract

Summary form only given. In this work we present experimental results that point out, for the first time, the role of size in affecting the ultrafast electron relaxation dynamics in metal nanoparticles. The experiments have been performed by femtosecond transient reflectivity technique on tin nanocrystals with radii in the range 20-60 /spl Aring/ embedded in a dielectric (Al/sub 2/O/sub 3/) matrix.

Keywords

dynamics; electron mobility; high-speed optical techniques; nanostructured materials; optical dispersion; particle size; reflectivity; relaxation; tin; 20 to 60 A; Al/sub 2/O/sub 3/; Sn; dielectric matrix; femtosecond electron energy relaxation; femtosecond transient reflectivity technique; metal nanoparticles; particle size; tin nanoparticles; ultrafast electron relaxation dynamics; Anisotropic magnetoresistance; Electrons; Excitons; Gallium arsenide; Indium gallium arsenide; Nanoparticles; Polarization; Superlattices; Tin; Wires;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 1996. QELS '96., Summaries of Papers Presented at the

Conference_Location

Anaheim, CA, USA

Print_ISBN

1-55752-444-0

Type

conf

Filename

865719