Near-field optical microscope image formation

Theoretical and experimental study

A. Zvyagin*, J. D. White, M. Ohtsu

*Corresponding author for this work

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


A macroscopic classical theory of the c-mode near-field optical microscope (NOM) which models the optical near-field over the sample as a spectrum of plane, mostly evanescent waves and the fiber tip apex as a nanometer sized dielectric sphere was developed. The model predicts that the probe and the sample interact weakly and that the intensity picked-up by the probe is proportional to the near-field intensity. The near-field intensity over the sample has been calculated using theoretical extinction theorem. A biological specimen, microtube (MT) was chosen due to its well identified nanometric size and importance biologically. A good agreement is seen for both the MT diameter and in the observed asymmetry of the edge effect.

Original languageEnglish
Title of host publicationPacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages2
Publication statusPublished - 1997
Externally publishedYes
EventProceedings of the 1997 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim - Chiba, Jpn
Duration: 14 Jul 199718 Jul 1997


OtherProceedings of the 1997 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim
CityChiba, Jpn

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