Open AccessHighly controllable fabrication of fiber probe for photon scanning tunneling microscope
Author(s) -
Pangaribuan Togar,
Jiang Shudong,
Ohtsu Motoichi
Publication year - 1994
Publication title -
scanning
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.359
H-Index - 47
eISSN - 1932-8745
pISSN - 0161-0457
DOI - 10.1002/sca.4950160607
Subject(s) - cladding (metalworking) , materials science , etching (microfabrication) , scanning tunneling microscope , fabrication , isotropic etching , fiber , ligand cone angle , optics , optical fiber , scanning probe microscopy , optoelectronics , nanotechnology , composite material , physics , layer (electronics) , medicine , alternative medicine , pathology , conical surface
A selective chemical etching was used to fabricate fiber probes for the photon scanning tunneling microscope (PSTM). The cladding diameter of the fiber probe was controlled by varying the first‐step etching time. The cone angle of the fiber probe tip was controlled by varying the doping ratio of the fiber and the composition of the etching solution. A cladding diameter of 8 μm and a tip diameter of about 3 nm were fabricated. The smallest cone angle was 14°.