Title :
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
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;
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
