Light propagation within colloidal crystal wire fabricated by a dewetting process.
We present a colloidal crystal wire composed of thousands of connected microspheres that is fabricated by a simple dewetting process utilizing a drain phenomenon, and we directly observe the light propagation within the wire by near-field scanning optical microscopy. The optical properties of propagation light suggest that the propagation mechanism was attributed mainly to nanojet-induced mode coupling for the straight propagation component and partly to whispering-gallery mode coupling within the colloidal crystal wire.
Mitsui
Tadashi
T
Quantum Dot Research Center, National Institute for Materials Science, Tsukuba, Japan. MITSUI.Tadashi@nims.go.jp
Wakayama
Yutaka
Y
Onodera
Tsunenobu
T
Takaya
Yosuke
Y
Oikawa
Hidetoshi
H
D003102:Colloids; D003460:Crystallization; D008027:Light; D008855:Microscopy, Electron, Scanning
D003102:Colloids