Femtosecond time-resolved photoelectron spectra of ammonia molecules and clusters

Autor:	Th. Freudenberg, Christophe Jouvet, Ingolf V. Hertel, C. Dedonder-Lardeux, W. Radloff, V. Stert, Frank Noack, D. Solgadi
Rok vydání:	1997
Předmět:	Materials science General Physics and Astronomy Photoelectric effect Laser Spectral line Ion law.invention X-ray photoelectron spectroscopy law Ionization Excited state Femtosecond Physics::Atomic and Molecular Clusters Atomic physics
Zdroj:	Europhysics Letters (EPL). 40:515-520
ISSN:	1286-4854 0295-5075
DOI:	10.1209/epl/i1997-00497-y
Popis:	The first femtosecond pump-probe photoelectron spectroscopy experiment for neutral clusters is reported. The A state of ammonia molecules and clusters is excited with 120 fs pulses at 200 nm and probed by ionisation at 267 or 400 nm. Ions and electrons are detected in coincidence. The high repetition rate of the fs laser allows one to reduce the coincidence rate per laser pulse to less than 0.05 per pulse so that photoelectrons and photoions can be correlated unambiguously. The energy flow in the excited neutral cluster states is followed in real time, and the energy content in the ionic clusters can be related to the fragmentation patterns.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e55d5e266db2ae3e766a65974e18723a https://doi.org/10.1209/epl/i1997-00497-y Zobrazit plný text záznamu