Author/Authors :
Schaafsma، نويسنده , , D.T and Mossadegh، نويسنده , , R and Sanghera، نويسنده , , J.S and Aggarwal، نويسنده , , I.D and Gilligan، نويسنده , , J.M and Tolk، نويسنده , , N.H and Luce، نويسنده , , M and Generosi، نويسنده , , R and Perfetti، نويسنده , , P and Cricenti، نويسنده , , A and Margaritondo، نويسنده , , G، نويسنده ,
Abstract :
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 μm), using the probe tips in collection mode, indicates an optical spatial resolution approximately λ/15.
Keywords :
IR-SNOM , Spatial resolution , Singlemode chalcogenide fiber , FEL
