Heating of conduction band electrons by intense femtosecond laser pulses

Autor:	Guillaume Petite, Stéphane Guizard, H. Bachau, Andrey N. Vasil’ev, A.N. Belsky, Peter G. Martin, G. Geoffroy, B. N. Yatsenko
Rok vydání:	2004
Předmět:	Physics Physics::Instrumentation and Detectors Physics::Optics General Physics and Astronomy Electron Plateau (mathematics) Laser Spectral line law.invention law Excited state Femtosecond Atomic physics Conduction band Excitation
Zdroj:	Europhysics Letters (EPL). 67:301-306
ISSN:	1286-4854 0295-5075
Popis:	We present photoelectron spectra for CsI excited by intense femtosecond Ti-Sapphire laser pulses. A high-energy plateau is detected in the spectra, at excitation intensities above 0.5 TW/cm2. This plateau extends up to 24 eV at 3 TW/cm2 and 90% of the emitted electrons have energy higher than twice the laser photon energy. Such intensive electron heating in solids cannot be explained in terms of phonon-assisted transitions. A model of direct interbranch transitions in the conduction band is used for the simulation of the heating process.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0473fdecb40ac028bdf30a88cdd37731 https://doi.org/10.1209/epl/i2004-10058-0 Zobrazit plný text záznamu