Singlemode chalcogenide fiber infrared SNOM probes
We have fabricated and tested infrared scanning near-field optical microscope (IR-SNOM) probe tips made from singlemode chalcogenide fiber. The process used to create the tips was similar to conventional micropipette-puller techniques, with some modifications to allow for the lower melting temperature and tensile strength of the chalcogenide fiber. SEM micrographs, showing tips with sub-micrometer physical dimensions, demonstrate the feasibility of this process. Topographical data obtained using a shear-force near-field microscope exhibits spatial resolution in the range 80-100 nm. Optical data in the infrared (near 3.5 mu m), using the probe tips in collection mode, indicates an optical spatial resolution approximately lambda/15. (C) 1999 Published by Elsevier Science B.V. hll rights reserved.
USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA. Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA. Ist Struttura Mat, Rome, Italy. Ecole Polytech Fed Lausanne, Inst Phys Appl, CH-1015 Lausanne, Switzerland. Schaafsma, DT, USN, Res Lab, Div Opt Sci, Code 5606,4555 Overlook Ave SE, Washington, DC 20375 USA.
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Record created on 2006-10-03, modified on 2016-08-08