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PHOTON SCANNING TUNNELING MICROSCOPY *
Jean Pierre GOUDONNET, L. SALOMON, F. DE FORNEL and G. CHABRIER
University de Bourgogne, Laboratoire de Physique du Solide, Groupe Photoelectricit6,
UA 785, Fac Sciences Mirande, BP 138, 21004 DIJON CEDEX - FRANCE
CONF-9010216--l
and
DE91 001215
R.J. WARMACK and T.L. FERRELL
Health and Safety Research Division, Oak Ridge National Laboratory, Oak Ridge,
Tennessee 37831
ABSTRACT
The Photon Scanning Tunneling Microscope (PSTM) is the photon analogue of
the electron Scanning Tunneling Microscope (STM). It uses the evanescent field due
to the total internal reflection of a light beam in a Total Internal Reflection (TIR) prism.
The sample, mounted on the base of the prism, modulates the evanescent field. A
sharpened optical fiber probes this field, and the collected light is processed to
generate an image of the topography and the chemical composition of the surface. We
give, in this paper, a description of the microscope and discuss the influence of several
parameters such as - polarization of light, angle of incidence, shape of the end of the
fiber - on the resolution. Images of various samples - glass samples, teflon spheres -
are presented.
I. INTRODUCTION
Photon Scanning Tunneling Microscopy (PSTM) belongs to the family of SXM
microscopies (1,2) which exploit a distance dependent interaction for guidance of a
probe tip and local information about this interaction. One of these new microscope -
Scanning Tunneling Microscope (3) - demonstrated its capability to map atomic and
molecular shapes, overcoming the fundamental limitation of any conventional
microscope : diffraction obscures details smaller than about one half the wavelength of
*Research sponsored by the Office of Health
and Environmental Research, U.S. Department s amaat a been
of Energy, under Contract No. DE-AC05-840R21400 au h ed y a conact of the US
with Martin Marietta Energy Systems, Inc. 2 AC84082140. Acoorngmly, the US
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Goudonnet, Jean Pierre; Salomon, L.; De Fornel, F.; Chabrier, G.; Warmack, R. J. & Ferrell, T. L. Photon scanning tunneling microscopy, article, January 1, 1990; Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc1210881/m1/1/: accessed July 17, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.