Laser thermal effects on atomic force microscope cantilevers

Year: 1992

Authors: Allegrini M., Ascoli C., Baschieri P., Dinelli F., Frediani C., Lio A., Mariani T.

Autors Affiliation: Dipartimento di Fisica, Università di Pisa, Piazza Torricelli 2, 56125 Pisa, Italy; Istituto di Biofisica del CNR, Via San Lorenzo 26, 56127 Pisa, Italy; Consorzio Pisa Ricerche, Via Risogimento 9, 56126 Pisa, Italy; Instituto di Mutagenesi e Differenziamento del CNR, Via Svezia 10, 56123 Pisa, Italy

Abstract: The effects of laser radiation on cantilevers used in atomic force microscopes have been investigated. Optical parameters of the cantilevers, deflection due to radiation pressure and thermal effects have been measured on cantilevers freely moving in air. For cantilevers with a gold coating we have found thermal effects at least two orders of magnitude larger than for uncoated cantilevers.

Journal/Review: ULTRAMICROSCOPY

Volume: 42 (Part A)      Pages from: 371  to: 378

More Information: Consiglio Nazionale delle Ricerche, CNR. BREU 145. – We thank Shynia Akamine for providing the uncoated silicon-nitridec antilevers,G .F. Bassani for his continuouse ncouragemenatn d G. Alzetta, E. Arimondo, and D. Petracchi for enlightening discussionsT. his work was supported by the European Economic Communityu nder Contract No. BREU 145 and by the Consiglio Nazionale delle Ricerche as part of Progetto Strategico \”Micro-scopia Tunneling\”.
KeyWords: AFM; Laser;
DOI: 10.1016/0304-3991(92)90295-U

Citations: 50
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