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.


Photon scanning tunneling microscopy of tailor-made photonic structures

(full pdf)

Peeters C, Flück E, Otter AM, Balistreri MLM, Korterik JP, Kuipers L, van Hulst NF
vol 77 issue 1: p142-p144 JUL 3 2000

Optical field distributions around individually fabricated subwavelength scatterers mapped with a photon scanning tunneling microscope are presented. The photonic structures are produced from ridge waveguides using focused-ion-beam milling. This flexible technique allows us to make single holes and slits of sizes down to 30 nm. A quantitative analysis of the observed optical pattern due to interference between incoming and reflected light yields insight about subwavelength scatterers in waveguides. We conclude that light scattering into high-loss modes of the waveguide occurs. (C) 2000 American Institute of Physics. [S0003-6951(00)01327-9].
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