Optical probing of sample heating in scanning near-field experiments with apertured probes

G. Latini, A. Downes, O. Fenwick, A. Ambrosio, M. Allegrini, C. Daniel, C. Silva, P. G. Gucciardi, S. Pataǹ, Rusli Daik, W. J. Feast, F. Cacialli

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We have used the inherent thermochromism of conjugated polymers to investigate substrate heating effects in scanning near-field experiments with metal-coated "apertured" probes. Chemically etched and pulled fibers were used to provide near-field excitation of fully converted films of poly (p -phenylene vinylene), PPV, and of poly (4, 4′ -diphenylene diphenylvinylene). We detect no significant blueshift of the photoluminescence spectra generated with near-field excitation, in comparison to those collected with far-field excitation. We conclude that polymer heating in the region contributing to the luminescence is less than 40 K. We also demonstrate that thermolithography of the PPV precursor is not significant by comparing UV (325 nm) and red (670 nm) illumination.

Original languageEnglish
Article number011102
JournalApplied Physics Letters
Volume86
Issue number1
DOIs
Publication statusPublished - Jan 2005
Externally publishedYes

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near fields
heating
scanning
probes
excitation
polymers
far fields
illumination
luminescence
photoluminescence
fibers
metals

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Latini, G., Downes, A., Fenwick, O., Ambrosio, A., Allegrini, M., Daniel, C., ... Cacialli, F. (2005). Optical probing of sample heating in scanning near-field experiments with apertured probes. Applied Physics Letters, 86(1), [011102]. https://doi.org/10.1063/1.1842860

Optical probing of sample heating in scanning near-field experiments with apertured probes. / Latini, G.; Downes, A.; Fenwick, O.; Ambrosio, A.; Allegrini, M.; Daniel, C.; Silva, C.; Gucciardi, P. G.; Pataǹ, S.; Daik, Rusli; Feast, W. J.; Cacialli, F.

In: Applied Physics Letters, Vol. 86, No. 1, 011102, 01.2005.

Research output: Contribution to journalArticle

Latini, G, Downes, A, Fenwick, O, Ambrosio, A, Allegrini, M, Daniel, C, Silva, C, Gucciardi, PG, Pataǹ, S, Daik, R, Feast, WJ & Cacialli, F 2005, 'Optical probing of sample heating in scanning near-field experiments with apertured probes', Applied Physics Letters, vol. 86, no. 1, 011102. https://doi.org/10.1063/1.1842860
Latini G, Downes A, Fenwick O, Ambrosio A, Allegrini M, Daniel C et al. Optical probing of sample heating in scanning near-field experiments with apertured probes. Applied Physics Letters. 2005 Jan;86(1). 011102. https://doi.org/10.1063/1.1842860
Latini, G. ; Downes, A. ; Fenwick, O. ; Ambrosio, A. ; Allegrini, M. ; Daniel, C. ; Silva, C. ; Gucciardi, P. G. ; Pataǹ, S. ; Daik, Rusli ; Feast, W. J. ; Cacialli, F. / Optical probing of sample heating in scanning near-field experiments with apertured probes. In: Applied Physics Letters. 2005 ; Vol. 86, No. 1.
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