Confined optical modes and amplified spontaneous emission from a microtube cavity formed by vacuum assisted filtration

被引:6
|
作者
Balakrishnan, S. [1 ]
Gun'ko, Y.
Rakovich, Yu. P.
Donegan, J. F.
Perova, T. S.
Moore, R. A.
机构
[1] Univ Dublin Trinity Coll, Sch Chem, Dublin 2, Ireland
[2] Trinity Coll Dublin, Sch Phys, Semicond Photon Grp, Dublin 2, Ireland
[3] Trinity Coll Dublin, Dept Elect & Elect Engn, Dublin 2, Ireland
基金
爱尔兰科学基金会;
关键词
D O I
10.1063/1.2356691
中图分类号
O59 [应用物理学];
学科分类号
摘要
The authors demonstrate a new route to the fabrication of individual aluminosilicate microtubes that can act as micron-scale optical cylindrical resonators. The microtubes were prepared using a simple vacuum assisted wetting and filtration through a microchannel glass matrix. Microphotoluminescence spectra of the microtube cavity show sharp resonant modes with quality factors up to 3200. A strong reduction of the emission decay time at high excitation power confirms the occurrence of amplified spontaneous emission from a single microtube. (c) 2006 American Institute of Physics.
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页数:3
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