High refractive-index microspheres of optical cavity structure
High refractive-index microspheres of optical cavity structure
复制标题
光学腔体结构的高折射率微球
DOI：
10.1063/1.1573331
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发表时间：
2003
影响因子：
4
通讯作者：
S. Shibata
中科院分区：
文献类型：
--
作者：
Y. Arai;T. Yano;S. Shibata
研究了折射率nD>2的微球。以钛醇盐和硅烷偶联剂为原料，采用振动孔技术在室温下制备了折射率nD=1.70-1.72的有机-无机杂化微球。随后在400-450 °C下加热微球导致其折射率增加至nD=2.10-2.25，同时保持良好的球形形状。 在室温下制备了nD=1.72的罗丹明6 G掺杂微球，并用调Q Nd-钇-铝-石榴石激光器的二次谐波脉冲泵浦微球产生激光。
Microspheres of refractive index of nD>2 have been investigated. The organic-inorganic hybrid microspheres of refractive index nD=1.70–1.72 were prepared at room temperature by the vibrating orifice technique using titanium alkoxide and silane coupling reagents as starting materials. Subsequently heating the microspheres at 400–450 °C resulted in increasing their refractive indices to nD=2.10–2.25 with keeping good spherical shape. Rhodamine 6G-doped microspheres of nD=1.72 were also prepared at room temperature and the lasing from them was performed by pumping by second-harmonic pulses of Q-switched Nd–yttritium–aluminum–garnet laser.