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Implementation of a short‐tip tapping‐mode tuning fork near‐field scanning optical microscope
Author(s) -
Lu N. H.,
Huang C. W.,
Chen C. Y.,
Yu C. F.,
Kao T. S.,
Fu Y. H.,
Tsai D. P.
Publication year - 2003
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1046/j.1365-2818.2003.01135.x
Subject(s) - tuning fork , tapping , fork (system call) , optics , near field scanning optical microscope , materials science , optical microscope , signal (programming language) , microscope , piezoelectricity , optoelectronics , scanning electron microscope , vibration , physics , acoustics , computer science , composite material , operating system , programming language
Summary We present the implementation of a short‐tip tapping‐mode tuning fork near‐field scanning optical microscope. Tapping frequency dependences of the piezoelectric signal amplitudes for a bare tuning fork fixed on the ceramic plate, a short‐tip tapping‐mode tuning fork scheme and an ordinary tapping‐mode tuning fork configuration with an 80‐cm optical fibre attached are demonstrated and compared. Our experimental results show that this new short‐tip tapping‐mode tuning fork scheme provides a stable and high Q factor at the tapping frequency of the tuning fork and will be very helpful when long optical fibre probes have to be used in an experiment. Both collection and excitation modes of short‐tip tapping‐mode tuning fork near‐field scanning optical microscope are applied to study the near‐field optical properties of a single‐mode telecommunication optical fibre and a green InGaN/GaN multiquantum well light‐emitting diode.