Observation of tip-to-sample heat transfer in near-field optical microscopy using metal-coated fiber probes (Articolo in rivista)

Type
Label
  • Observation of tip-to-sample heat transfer in near-field optical microscopy using metal-coated fiber probes (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Alternative label
  • P. G. Gucciardi; S. Patanè; A. Ambrosio; M. Allegrini; A. D. Downes; G. Latini; O. Fenwick; F. Cacialli (2005)
    Observation of tip-to-sample heat transfer in near-field optical microscopy using metal-coated fiber probes
    in Applied physics letters
    (literal)
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  • P. G. Gucciardi; S. Patanè; A. Ambrosio; M. Allegrini; A. D. Downes; G. Latini; O. Fenwick; F. Cacialli (literal)
Pagina inizio
  • 203109 (literal)
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  • 86 (literal)
Rivista
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  • 3 (literal)
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  • CNR-Istituto per i Processi Chimico-Fisici, Messina, Italy; INFM, Dipartimento di Fisica della Materia e Tecnologie Fisiche Avanzate, Università di Messina, Italy; INFM, Dipartimento di Fisica \"Enrico Fermi,\" Università di Pisa, Pisa, Italy; Department of Physics and Astronomy and London Centre for Nanotechnology, University College London, United Kingdom (literal)
Titolo
  • Observation of tip-to-sample heat transfer in near-field optical microscopy using metal-coated fiber probes (literal)
Abstract
  • Metal-coated scanning near-field optical microscopy fiber probes can undergo significant heating due to partial absorption of the coupled light by the metallic film covering the apical zone. In this letter we report experimental evidence of tip-to-sample heat transfer on a 7,7?,8,8?-tetracyanoquinodimethane molecular crystal. Local melting is observed at nanometric tip-sample distances, when increasing the laser power injected into the fiber above a threshold of 8.8 mW. Hole formation and material displacement are observed, as well as failure of the shear-force-based imaging process, due to partial sticking of the melted material to the probe. (literal)
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