An apertureless near-field scanning optical microscope for imaging surface plasmons in the mid-wave infrared

John Kohoutek*, Dibyendu Dey, Ryan Gelfand, Alireza Bonakdar, Hooman Mohseni

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

An apertureless near-field scanning optical microscope (a-NSOM) setup is described. Special consideration is given to important system components. Surface plasmons are defined, as is their relationship to a- NSOM and their interaction with the scanning probe tip. We used this set-up to measure a metal-dielectric-metal (MDM) antenna integrated with a quantum cascade laser (QCL). The former is introduced and described. The role of the atomic force microscope (AFM) in the experiment is laid out and explained. Finally, the lock-in amplifier is explained. Next, the system setup is introduced and explained from the point of view of the light path taken by light generated in the laser. Finally, results are given for the MDM single nanorod antenna and the coupled MDM nanorod antenna. Simulation, topography, and NSOM images are shown. Lastly, several experimental issues are discussed as well as other types of NSOM.

Original languageEnglish (US)
Title of host publicationNovel Optical Systems Design and Optimization XIII
Volume7787
DOIs
StatePublished - Dec 13 2010
EventNovel Optical Systems Design and Optimization XIII - San Diego, CA, United States
Duration: Aug 2 2010Aug 5 2010

Other

OtherNovel Optical Systems Design and Optimization XIII
CountryUnited States
CitySan Diego, CA
Period8/2/108/5/10

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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