Light-induced atomic desorption from porous silica
Anno: 2004
Autori: Burchianti A., Marinelli C., Bogi A., Brewer J., Rubahn K.,
Rubahn H.-G., Della Valle F., Mariotti E., Biancalana V.,
Veronesi S., Moi L.
Affiliazione autori: INFM UdR di Siena, Dipartimento di Fisica, Università di Siena
via Roma 56, I-53100 Siena, Italy
Syddansk Universitet, Fysisk Institut – Campusvej 55, DK-5230 Odense M, Denmark
Dipartimento di Fisica, Università di Trieste – via A. Valerio 2, I-34127 Trieste, Italy
Abstract: Huge light-induced rubidium atom desorption has been observed from porous silica samples placed inside Pyrex cells kept at room temperature. The desorption rate and the maximum vapour density change have been measured as a function of the desorbing light intensity. Their values are comparable with those recently obtained in Pyrex cells coated with organic films. A linear dependence of the desorption rate and a square-root dependence of the maximum density increase on light intensity indicate that diffusion inside the glass pores is a key mechanism. The application of this effect to develop light-controlled atomic dispensers compatible with high vacuum environment is discussed.
Giornale/Rivista: EUROPHYSICS LETTERS
Volume: 67 (6) Da Pagina: 983 A: 989
Parole chiavi: Photodesorption; Nanostructured Materials; FilmDOI: 10.1209/epl/i2004-10141-6Citazioni: 41dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui
