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27th Lunch Colloquium will be held on Friday 28th February 2014

Subject: 27th Lunch Colloquium

We are delighted to announce that 27th Lunch Colloquium is to be held as follows.
Please come and enjoy the talk:

27th Lunch Colloquium
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Date: Friday 28th February 2014
Time: 12:15-13:00
Place: A1 Lecture hall(A1-101:Ground floor)
   Campus Map: http://www.tut.ac.jp/docs/campas%20map2012.pdf
Fee: Free (Lunch on own -bring your own lunch)
Language: English
Speaker:  Alexander BARYSHEV Tenure Track Assosiate Professor (EIIRIS)
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Title: An approach to visualization of and optical sensing by Bloch surface
waves in noble or base metal-based plasmonic photonic crystal slabs.
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Outline:
The Bloch surface wave resonance(SWR) was visualized with the aid of
plasmon absorption in a dielectric/metal/dielectric sandwich terminating
a one-dimensional photonic crystal. An SWR peak in spectra of such a plasmonic
photonic crystal(PPhC) slab comprising a noble or base metal layer was demonstrated
to be sensitive to a negligible variation of refractive index of a medium adjoining
to the slab.

This new concept of PPhC slabs can be of practical importance because the metal
layer is protected by a capping dielectric layer from contact with analytes
and,consequently, from deterioration. Moreover, in case of PPhC slabs,gold(the key
element of the surface plasmon resonance-based biosensors) can be replaced by
other metals. The PPhC-based sensors can be low-cost, reusable and robust sensors
having a sensitivity significantly surpassing that of the known optical sensors.
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Poster: 
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更新日:2014年02月24日