Arbouet A, Voisin C, Christofilos D, Langot P, Fatti N Del, Vallée F, Lermé J, Celep G, Cottancin E, Gaudry M, Pellarin M, Broyer M, Maillard M, Pileni M P, Treguer M
Centre de Physique Moléculaire Optique et Hertzienne, CNRS and Université Bordeaux I, 351 cours de la Libération, 33405 Talence, France.
Phys Rev Lett. 2003 May 2;90(17):177401. doi: 10.1103/PhysRevLett.90.177401. Epub 2003 Apr 29.
Electron-lattice energy exchanges are investigated in gold and silver nanoparticles with sizes ranging from 30 to 2.2 nm embedded in different environments. Femtosecond pump-probe experiments performed in the low-perturbation regime demonstrate a strong increase of the intrinsic electron-phonon interaction for nanoparticles smaller than 10 nm due to a confinement effect.
