Enhanced sensing of molecular optical activity with plasmonic nanohole arrays

  title={Enhanced sensing of molecular optical activity with plasmonic nanohole arrays},
  author={Maxim V. Gorkunov and A. N. Darinskii and Alexey V. Kondratov},
  journal={Journal of The Optical Society of America B-optical Physics},
Prospects of using metal-hole arrays for the enhanced optical detection of molecular chirality in nanosized volumes are investigated. Light transmission through the holes filled with an optically active material is modeled, and the activity enhancement by more than an order of magnitude is demonstrated. The spatial resolution of the chirality detection is shown to be of a few tens of nanometers. From comparing the effect in arrays of cylindrical holes and holes of complex chiral shape, it is… 

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