Optical Sciences

Biomolecules and nanostructures

The Optical Sciences group studies the interaction of light and matter. Our current focus is on detection and sensing/imaging with an emphasis on the development of integrated photonics. We are part of Twente University's Department of Science and Technology and member of the MESA+ institute.

 

Near-field observation of spatial phase shifts associated with Goos-Hänschen and Surface Plasmon Resonance effects

(full pdf)

J. Jose, F. B. Segerink, J. P. Korterik and H. L. Offerhaus
Optics Express
Vol. 16, No. 3 p.1958 - 1964 jan 28, 2008

We report the near-field observation of the phase shifts associated with total internal reflection on a glass-air interface and surface plasmon resonance on a glass-gold-air system. The phase of the evanescent waves on glass and gold surfaces, as a function of incident angle, is measured using a phase-sensitive Photon Scanning Tunneling Microscope (PSTM) and shows a good agreement with theory.
© 2008 Optical Society of America
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