PREPARATION OF MICROSPHERES FOR OPTICAL CAVITY STRUCTUTRE AND THEIR APPLICATIONS

光腔结构微球的制备及其应用

• 批准号: 12555246
• 负责人: SHIBATA Shuichi
• 金额: $ 7.17万
• 依托单位: TOKYO INSTITUTE OF TECHNOLOGY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12555246/
• 关键词: Microsphere; Spherical Optical Cavity; Sol-Gel method; Vibrating Orifice Technique; Hybrid Material; Optical Resonance; Optical Waveguide; Optical Communication; 高屈折率; ソルーゲル法; レーザー色素添加

By the Vibrating Orifice Technique (A cylindrical liquid jet passing through the orifice of 10-20μm in diameter breaks up into equal-sized droplets by mechanical vibration of high frequency), equal-sized hybrid microsphers of several micrometer in diameter were successflly fabricated. These microsphers meet the optical cavity requirements : mono-dispersed and showed highly transparent and good sphricity.The following achievements were accomplished.(A) Lasing was performed in dye-doped microspheres prepared from phenyltriethoxy silane as a starting material. Most stable conditions of lasing were clarified : dye content and excitation laser power. Dyes were Rhodamine 6G, DCM and Pyridine 1. After 240,000 pulse shot (about 7 hour-irradiation), the initial lasing power intensity decreased to 50%.(B) Encapsulation of light need high relative refractive index >1.5 between microsphere here and the surrounding media. Thus the microsphere itself is required index >2.0. Hybrid microspheres of refractive index >2.0 was developed(C) Optical waveguide of hybrid materials were made by the photolithography technique and the excitation of microsphere was performed using the waveguide.

采用振动孔板技术（圆柱形液体射流通过直径10-20μm的孔板，通过高频机械振动破碎成大小相等的液滴），成功制备了直径数微米的大小相等的混合微球。微球满足光学腔的要求：单分散，表现出高透明度和良好的球形度。取得了以下成果。（A）在以苯基三乙氧基硅烷为起始材料制备的染料掺杂微球，阐明了最稳定的激光发射条件：染料含量和激发激光功率为罗丹明6G、DCM和吡啶1。经过240,000次脉冲照射（约7小时照射），初始激光功率将强度降低至50%。(B) 光的封装需要高相对折射率这里的微球与周围介质之间的折射率>2.0，因此开发了折射率>2.0的混合微球。使用波导。

项目成果

S.Shibata, A.Araya, T.Yano, M.Yamane: "Photostability of the Laser Emission from Dye-Doped Spherical Particles"SPIE-The International Society for Optical Engineering. Vol.4804. 44-51 (2002)

S.Shibata、A.Araya、T.Yano、M.Yamane：“染料掺杂球形颗粒激光发射的光稳定性”SPIE-国际光学工程学会。

柴田, 顕谷, 多田, 矢野, 山根: "光共振器用微小球の作製"日本マイクログラビティ応用学会誌. 17. 166-171 (2000)

Shibata、Akiya、Tada、Yano、Yamane：“光学谐振器微球的制备”日本微重力应用学会杂志 17. 166-171 (2000)。

S.Shibata, A.Araya et al.: "Photostability of the Laser Emission from Dye-Doped Spherical Particles"SPIE, Sol-Gel Optics VI(AM427). (2002)

S.Shibata、A.Araya 等人：“染料掺杂球形颗粒激光发射的光稳定性”SPIE，溶胶-凝胶光学 VI (AM427)。

柴田修一: "ハイブリッド材料からなる光共振器用微小球"Ceramic Data Book2001. 29. 250-253 (2001)

Shuichi Shibata：“混合材料制成的光学谐振器微球”《陶瓷数据手册》2001 年 29. 250-253 (2001)。

S.Shibata, A.Tomizawa, H.Yoshikawa, T.Yano, M.Yamane: "Preparation of Spherical Particles by Vibrating Orifice Technique"SPIE-The International Society for Optical Engineering. 3943. 112-119 (2000)

S.Shibata、A.Tomizawa、H.Yoshikawa、T.Yano、M.Yamane：“通过振动孔板技术制备球形颗粒”SPIE-国际光学工程学会。