Light induced atomic desorption from dry-film coatings.
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.
CNISM-Unità di Siena and Dipartimento di Fisica, Università degli Studi di Siena-56, via Roma I-53100 Siena, Italy.
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Cappello
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de Mauro
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Bogi
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Burchianti
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Di Renzone
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Khanbekyan
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Marinelli
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Mariotti
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Tomassetti
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Moi