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
  • Gucciardi, PG; Patane, S; Ambrosio, A; Allegrini, M; Downes, AD; Latini, G; Fenwick, O; Cacialli, F (2005)
    Observation of tip-to-sample heat transfer in near-field optical microscopy using metal-coated fiber probes
    in Applied physics letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Gucciardi, PG; Patane, S; Ambrosio, A; Allegrini, M; Downes, AD; Latini, G; Fenwick, O; Cacialli, F (literal)
Pagina inizio
  • 203109 (literal)
Pagina fine
  • 203111 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 86 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Coll London, Dept Phys & Astron, London WC1E 6BT, England Univ Coll London, London Ctr Nanotechnol, London WC1E 6BT, England CNR, Ist Proc Chim Fis, I-98123 Messina, Italy Univ Messina, Dipartimento Fis Materia & Tecnol Fis Avanzate, INFM, I-98166 Messina, Italy Univ Pisa, Dipartimento Fis Enrico Fermi, INFM, I-56127 Pisa, Italy (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)
  • 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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