Synthesis and Properties of Glassy Microcavities for Morphology-Dependent Resonances through Liquid–Liquid Phase Separation
Synthesis and Properties of Glassy Microcavities for Morphology-Dependent Resonances through Liquid–Liquid Phase Separation
复制标题
通过液-液相分离实现形态相关共振的玻璃微腔的合成和性能
DOI：
10.1111/j.1151-2916.2002.tb00237.x
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发表时间：
2004
影响因子：
3.9
通讯作者：
S. Nakano
中科院分区：
文献类型：
--
作者：
T. Konishi;K. Soga;H. Inoue;A. Makishima;S. Inoue;S. Inoue;S. Nakano
含有稀土的玻璃微球在实际应用中作为微腔用于形貌依赖共振（mdr）是有吸引力的。然而，目前尚无高效、低成本的微腔量产工艺。在本研究中，我们利用碱土硼酸玻璃的液-液相分离技术合成了玻璃微腔。通过对BaO-B2O3玻璃进行液液相分离，将其粒径控制在1 ~ 45 μm范围内，粒径分布控制在1%以内，制备出玻璃微球。微球的拉曼散射光谱和内部稀土的荧光光谱显示出周期性的尖峰，表明mdr。这些微球充当高质量的微腔，其Q因子可与使用洛伦兹-米氏理论计算的Q因子相媲美。
Glassy microspheres containing a rare earth are attractive for practical use as microcavities for morphology-dependent resonances (MDRs). However, no efficient and low-cost mass-production process has been established for such microcavities. In the present study, we have synthesized glassy microcavities through liquid–liquid phase separation of alkaline-earth borate glass. Glassy microspheres have been prepared by the liquid–liquid phase separation of BaO-B2O3 glasses, by controlling the particle size within the range 1–45 μm and the size distribution within 1%. The microspheres show periodic, sharp peaks, indicative of MDRs, in their Raman-scattering spectra and in the fluorescence spectra of the internal rare earth. These microspheres act as high-quality microcavities, with Q factors comparable to those calculated using the Lorenz–Mie theory.