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Influence of micro-joints formed between spheres in coupled-resonator optical waveguide
Author(s) -
T. Mitsui,
Tsunenobu Onodera,
Yutaka Wakayama,
Takeru Hayashi,
Naoki Ikeda,
Yoshimasa Sugimoto,
T. Takamasu,
Hidetoshi Oikawa
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.022258
Subject(s) - resonator , materials science , optics , microsphere , spheres , optical force , whispering gallery wave , coupling (piping) , waveguide , joint (building) , optoelectronics , optical tweezers , composite material , physics , architectural engineering , astronomy , chemical engineering , engineering
Light propagation is simulated through coupled-resonator optical waveguides (CROWs) composed of seven transparent polystyrene microspheres, including micro-joints formed between the spheres. In nanojet-induced mode (NIM) light propagation, the micro-joints increased the optical coupling between microspheres drastically, and the light confinement by individual microspheres weakened as the micro-joint diameter increases. These results suggest that we can control NIM light propagation by changing the micro-joint diameter; this amounts to a nanojet throttle valve.

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