Composition distribution change inside glasses by laser induced local heating and control of temperature distribution

通过激光诱导局部加热和温度分布控制来改变玻璃内部的成分分布

• 批准号: 22750187
• 负责人: SAKAKURA Masaaki
• 金额: $ 2.75万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22750187/
• 关键词: ガラス; レーザー加工; 組成分布制御; 液晶空間光変調器; フェムト秒レーザー; 温度圧力分布; 熱拡散シミュレーション; 元素組成分布; ダイナミクス

We developed the technique to control the elemental distribution changes inside glasses by irradiation with focused femtosecond laser pulses at a high repetition rate. Because the temperature distribution during laser irradiation is important for elemental distribution change, we developed the multi-spots' irradiation system to make multiple heat sources which produce variously shaped temperature distribution. In addition, the temperature distribution and the mechanism of thermal deformation which is accompanied with the elemental distribution change were elucidated by analyzing the shape of thermal deformation. Based on the elucidated temperature distribution and using the multi-spots' irradiation system, we succeeded to make variously shaped elemental distributions inside glasses. The controlling factors for element migration were also elucidated based on the simulation study.

我们开发了一种通过高重复频率聚焦飞秒激光脉冲照射来控制玻璃内部元素分布变化的技术。由于激光辐照过程中的温度分布对元素分布的变化至关重要，因此我们开发了多点辐照系统，使多个热源产生不同形状的温度分布。通过对热变形形态的分析，阐明了热变形过程中的温度分布以及伴随元素分布变化的热变形机理。在阐明温度分布的基础上，利用多点辐照系统，成功地在玻璃内部形成了各种形状的元素分布。在模拟研究的基础上，阐明了元素迁移的控制因素。

项目成果

Fabrication of three-dimensional 1 x 4 splitter waveguides inside a glass substrate with spatially phase modulated laser beam.

• DOI: 10.1364/oe.18.012136
• 发表时间: 2010-06
• 期刊: Optics express
• 影响因子: 3.8
• 作者: M. Sakakura;Tsutomu Sawano;Y. Shimotsuma;K. Miura;K. Hirao

応力・温度解析から見た透明固体内部のフェムト秒レーザー誘起構造変化

从应力和温度分析中看到飞秒激光引起透明固体内部的结构变化

• 发表时间: 2011
• 作者: Masaaki Sakakura;他4名;坂倉政明
• 通讯作者: 坂倉政明

Transient stress imaging inside single crystals after photoexcitation by a focused fs laser pulse

聚焦飞秒激光脉冲光激发后单晶内部瞬态应力成像

• 发表时间: 2012
• 作者: 坂倉政明;杤尾孝哉;他3名
• 通讯作者: 他3名

Laser-induced transient stress distribution inside a single crystal by time-resolved birefringence imaging

• DOI: 10.1117/12.908186
• 发表时间: 2012-02
• 作者: Takaya Tochio;M. Sakakura;S. Kanehira;Y. Shimotsuma;K. Miura;K. Hirao

Control of element distribution in glass with femtosecond laser

• DOI: 10.1117/12.906644
• 发表时间: 2012-02
• 作者: M. Shimizu;M. Sakakura;M. Nishi;Y. Shimotsuma;K. Hirao;K. Miura