6533b7d1fe1ef96bd125cafd
RESEARCH PRODUCT
Reproducible optical fiber tips for photon scanning tunneling microscopy with very small (>5°) cone angle
J. P. GoudonnetT. DavidA. KliniP. PapadopoulosS. EmoninG. KotrotsiosEric Bourillotsubject
Optical fiberMaterials sciencePhotonMulti-mode optical fiberMicroscopeScanning electron microscopebusiness.industryPhysics::OpticsAtomic and Molecular Physics and Opticslaw.inventionOpticsOptical microscopelawLigand cone angleScanning tunneling microscopebusinessdescription
Sharp optical fiber tips for photon scanning tunneling microscopes (PSTMs) have been fabricated by employing a new alternative technique for etching multimode optical fibers. The tip diameter is less than 30 mm, while the cone full-angle can be as sharp as 3/spl deg/. To the knowledge of the authors, such tips are the sharpest reported up to now. Measurements, with 19 tips, of the evanescent wave decay distance produced by frustrated reflection of light on a same sample, show good reproducibility. Furthermore, the PSTM images, taken with the new tips, are very sharp and fit with images of the same sample obtained with an atomic force microscope (AFM).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-07-01 | Journal of Lightwave Technology |