A method to overcome the diffraction limit in infrared microscopy using standing waves in an attenuated total reflection configuration

Nordine Hendaoui, Aladin Mani, Ning Liu, Syed M. Tofail, Christophe Silien, André Peremans

Research output: Contribution to journalArticlepeer-review

Abstract

A method is proposed to overcome the diffraction limit of spatial resolution in infrared microscopy. To achieve this, standing waves in an attenuated total reflection configuration were generated to spatially modulate the absorbance of adsorbate vibrational transitions. A numerical simulation was undertaken. It showed that chemical imaging with a spatial resolution of approximately 100 nm is achievable in the case of self-assembled patterns (ofoctdecyltrichlorosilane [CH3-(CH2)17-SiCl3]), when probing the methyl modes located near 3.5 micrometres.

Original languageEnglish
Pages (from-to)574-579
Number of pages6
JournalOptics Communications
Volume382
DOIs
Publication statusPublished - 1 Jan 2017

Keywords

  • ATR configuration
  • Far field
  • Infrared microscopy
  • Label free
  • Super-resolution

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