Optically trapped non-linear particles as probes for scanning near-field optical microscopy

H.M Hertz, Lennart Malmqvist, L Rosengren, K Ljungberg

Research output: Contribution to journalArticlepeer-review

Abstract

We use the frequency doubled light from an optically trapped lithium niobate particle for non-intrusive scanning near-field optical microscopy. The detected power from this 50-100 nm diameter probe is currently tens of pW and is expected to approach nW with an improved detection system. The current experimental resolution is approximately 0.5 [mu]m, while the ultimate theoretical resolution is 70-90 nm. An acoustic trap which potentially allows higher resolution imaging is briefly described.
Original languageEnglish
Pages (from-to)309-312
JournalUltramicroscopy
Volume57
Issue number2-3
DOIs
Publication statusPublished - 1995

Subject classification (UKÄ)

  • Atom and Molecular Physics and Optics

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