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Copyright © 2005 The Institute of Electronics, Information and Communication Engineers
Special Section on Nanophotonics and Related Techniques -- Papers |
Observation of Size-Dependent Resonance of Near-Field Coupling between a Deposited Zn Dot and the Probe Apex during Near-Field Optical Chemical Vapor Deposition
1 The author is with Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, Yokohama-shi, 226-8502 Japan. E-mail: jslim{at}ae.titech.ac.jp, 2 The authors are with Solution-Oriented Research for Science and Technology, Japan Science and Technology Agency, Machida-shi, 194-0004 Japan., 3 The author is with the School of Engineering, The University of Tokyo, Tokyo, 113-8656 Japan.
We investigated the initial stage of Zn dot growth using near-field optical chemical vapor deposition. The dependence of the rate of Zn dot deposition on dot size revealed that the deposition rate was maximal when the dot grew to a size equivalent to the probe apex diameter. Such observed size-dependent resonance was in good agreement with theoretical results for dipole-dipole coupling with a Förster field between the deposited Zn dot and the probe apex.
Key Words: optical near-field, self-assembly, nanoparticles
Manuscript received December 13, 2004. Manuscript revised April 21, 2005.