Enhanced vibrational near-field spectroscopy of PMMA with infrared antennas

Jon Mattis Hoffmann; Thomas Taubner

META 2021, META'12

Jon Mattis Hoffmann, Thomas Taubner

Last modified: 2012-01-06

Abstract

The sensitivity of infrared far-field spectroscopy can be enhanced with infrared antennas. Using a scattering-type near-field optical microscope (s-SNOM), we measure spatially resolved infrared near-field spectra of a PMMA film that are enhanced by resonant infrared antennas. We find that the near-field amplitudes are enhanced over those obtained on non-resonant structures.

Keywords

SNOM, IR spectroscopy, SEIRA, antennas