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Submicron Optical Spectroscopic Surface Characterisation Using Near-Field Probes.

Published online by Cambridge University Press:  02 July 2020

S. Webster ,
K. Kerhsaw ,
D.N. Batchelder ,
P. Quirke ,
D. Lidzey ,
D.D.C. Bradley  and
D.A. Smith
S. Webster
Affiliation:
Department of Physics and Astronomy, E. C. Stoner Building, University of Leeds, Leeds, UK.
K. Kerhsaw
Affiliation:
Department of Physics and Astronomy, E. C. Stoner Building, University of Leeds, Leeds, UK.
D.N. Batchelder
Affiliation:
Department of Physics and Astronomy, E. C. Stoner Building, University of Leeds, Leeds, UK.
P. Quirke
Affiliation:
Department of Histopathology, School of Medicine, Alginon Firth Building, University of Leeds, Leeds, UK.
D. Lidzey
Affiliation:
Department of Physics, Hicks Building, University of Sheffield, Sheffield, UK
D.D.C. Bradley
Affiliation:
Department of Physics, Hicks Building, University of Sheffield, Sheffield, UK
D.A. Smith
Affiliation:
Department of Physics and Astronomy, E. C. Stoner Building, University of Leeds, Leeds, UK.
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Extract

The development of scanning near-field optical microscopy has provided a submicron optical tool which has important applications in both fundamental studies and in device fabrication and analysis. The strength of the technique lies not only in its resolution of approximately 50nm, which is an order of magnitude improvement on diffractive optical techniques, but also in its ability to allow highly developed optical spectroscopies to be used for chemical analysis at this resolution. We have particular interest in the application of near-field probes to high spatial resolution laser spectroscopy in a range of organic, biological and inorganic systems. In this paper we shall describe the development of instrumentation for luminescence, Raman and time resolved spectroscopy in air and under fluids and will present the results of studies of phase separated polymer mixtures, organic crystals and semiconductor materials.

The current scanning near-field optical microscope is based around a tapered optical fibre, at the end of which a submicron aperture has been defined by a metal coating.

Type
Optical Microanalysis
Information
Microscopy and Microanalysis , Volume 3 , Issue S2: Proceedings: Microscopy & Microanalysis '97, Microscopy Society of America 55th Annual Meeting, Microbeam Analysis Society 31st Annual Meeting, Histochemical Society 48th Annual Meeting, Cleveland, Ohio, August 10-14, 1997 , August 1997 , pp. 825 - 826
Copyright
Copyright © Microscopy Society of America 1997

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References

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