3-D FDTD image analysis in transmission illumination mode of scanning near-field optical microscopy

E. Vasilyeva*, Allen Taflove

*Corresponding author for this work

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

4 Scopus citations

Abstract

Tunnel scanning near-field optical microscopy (tunnel SNOM or TNOM) detects not only the regularly transmitted waves but also radiation coupled via evanescent waves to the classically forbidden directions (angles larger than the angle of total internal reflection). Forbidden light can, in general, provide images with higher contrast and resolution than those of allowed-light images. However, the full use of the forbidden-light information requires better understanding of the SNOM imaging process. While the multiple multipole method (MMP) has been proven to be useful for 2-D modeling of SNOM, it seems to be unsuitable for more realistic 3-D simulations due to difficulties in dealing with complicated inhomogeneous material geometries.

Original languageEnglish (US)
Title of host publicationIEEE Antennas and Propagation Society International Symposium, 1998 Digest - Antennas
Subtitle of host publicationGateways to the Global Network - Held in conjunction with: USNC/URSI National Radio Science Meeting
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1800-1803
Number of pages4
Volume4
ISBN (Print)0780344782, 9780780344785
DOIs
StatePublished - Jan 1 1998
Event1998 IEEE Antennas and Propagation Society International Symposium, APSURSI 1998 - Atlanta, United States
Duration: Jun 21 1998Jun 26 1998

Other

Other1998 IEEE Antennas and Propagation Society International Symposium, APSURSI 1998
CountryUnited States
CityAtlanta
Period6/21/986/26/98

ASJC Scopus subject areas

  • Instrumentation
  • Radiation
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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