Ultrahigh-speed scanning near-field optical microscopy capable of over 100 frames per second

ADL Humphris, JK Hobbs, MJ Miles

Research output: Contribution to journalArticle (Academic Journal)peer-review

98 Citations (Scopus)

Abstract

Scanning near-field optical microscopy is a powerful technique offering subdiffraction-limit optical resolution. However, the range of applications is limited by slow image acquisition rates. In this letter we demonstrate an implementation of a near-field optical microscope capable of scan speeds of 150 mm/s producing images of an area 20μm2 in less than 10 ms, i.e., over 100 frames/s. To achieve this, a method of measuring the optical near-field intensity with a high bandwidth of greater than 1 MHz has been developed. A second original aspect is that the scan system uses a mechanical resonance of the probe to address the sample. The presented microscope is over 1000 times faster than a conventional scanning near-field optical microscope and ~10 times faster than any scanning probe microscope to date.
Translated title of the contributionUltrahigh-speed scanning near-field optical microscopy capable of over 100 frames per second
Original languageEnglish
Pages (from-to)6 - 8
Number of pages3
JournalApplied Physics Letters
Volume83 (1)
DOIs
Publication statusPublished - Jul 2003

Bibliographical note

Publisher: American Institute of Physics

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