Tsai, D. P.D. P.TsaiYang, C. W.C. W.YangH. E. Jackson2009-03-172018-06-282009-03-172018-06-281998http://ntur.lib.ntu.edu.tw//handle/246246/144984en-USLocal index measurement in an optical waveguide using a tapping-mode scanning near-field optcal microscopeconference paper