Type selective and polarization selective device for Raman...

Details Type selective and polarization selective device for Raman... Type selective and polarization selective device for Raman...

2011-03-15

2011-03-15

Chowdhury, Tarifur R. (Department: 2886)

Optics: measuring and testing

By dispersed light spectroscopy

With raman type light scattering

Reexamination Certificate

active

07907275

ABSTRACT:
A type and polarization selective device for Raman spectroscopy includes a set of at least two antennas and a gap at their intersection. First antenna geometry is such that it is configured to resonate, for first or second (different from the first) polarization, at a predetermined stimulation frequency of a material for which Raman scattering is to be studied, or at a Stokes or anti-Stokes frequency corresponding with the material when excited at stimulation frequency. Second antenna geometry is such that it is configured to resonate, for the other of second or first polarization, at the Stokes frequency when the first antenna is configured to resonate at the stimulation or anti-Stokes frequency, or at the anti-Stokes frequency when the first antenna is configured to resonate at the stimulation or Stokes frequency, or at the stimulation frequency when the first antenna is configured to resonate at the Stokes or anti-Stokes frequency.

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Muhlschlegel, et al. “Resonant Optical Antennas”, Science, vol. 308, Jun. 10, 2005, pp. 1607-1609.
Crozier et al. “Surface Plasmons/Optical Antennas”, http://www.seas.harvard.edu/crozier/research2.html (accessed via web Mar. 30, 2009),chosen for Applied Phys. Ltrs. cover, Oct. 2007.

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