Light induced atomic desorption from dry-film coatings

Year: 2007

Authors: Cappello A., De Mauro C., Bogi A., Burchianti A., Di Renzone S., Khanbekyan A., Marinelli C., Mariotti E., Tomassetti L., Moi L.

Autors Affiliation: CNISM-Unità di Siena, Dipartimento di Fisica, Università degli Studi di Siena-56, via Roma I, 53100 Siena, Italy; Dipartimento di Fisica, Universita Degli Studi di Ferrara-1, via Saragat I, 44100 Ferrara, Italy

Abstract: We report the first experimental evidence of nonthermal light induced atomic desorption (LIAD) from octadecyltrichlorosilane dry film. The experiment has been made with Rb confined in a coated cell kept at room temperature. A detailed study of the main features of LIAD effect has been made by varying intensity and wavelength of desorbing light. A discussion about the differences and similarities with other organic films that were studied first is reported. This result is important as it expands the list of materials showing such an effect and increases the possibilities to get suitable light controlled atomic sources for spectroscopy and applications. In particular, we plan to exploit this feature in a Fr magneto-optical trap apparatus.

Journal/Review: JOURNAL OF CHEMICAL PHYSICS

Volume: 127 (4)      Pages from:   to:

More Information: PubMed ID: 17672716
KeyWords: Atomic physics; Desorption; Magnetooptical devices; Silanes; Thermal effects, Light induced atomic desorption (LIAD); Octadecyltrichlorosilane dry films; Organic films, Polymer films
DOI: 10.1063/1.2756829

Citations: 19
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