Patent ID: 7907275

Claim:
A type selective and polarization selective device for Raman spectroscopy, the device comprising: a set of at least two antennas, including: a first antenna having a first geometry such that the first antenna is configured to resonate, for one of a first polarization or a second polarization that is different from the first polarization, at one of a predetermined stimulation frequency of a material for which Raman scattering is to be studied, a Stokes frequency corresponding with the material when excited at the predetermined stimulation frequency, or an anti-Stokes frequency corresponding with the material when excited at the predetermined stimulation frequency; and a second antenna intersecting the first antenna, the second antenna having a second geometry such that the second antenna is configured to resonate, for an other of the second polarization or the first polarization, at the Stokes frequency when the first antenna is configured to resonate at the predetermined stimulation frequency or at the anti-Stokes frequency, or at the anti-Stokes frequency when the first antenna is configured to resonate at the predetermined stimulation frequency or at the Stokes frequency, or at the predetermined stimulation frequency when the first antenna is configured to resonate at the Stokes frequency or at the anti-Stokes frequency; and a gap located at an intersection of the at least two antennas, the gap configured to have the material established therein.