Spectroscopic Characterization of Waveguides
Spectroscopic Characterization of Waveguides
复制标题
波导的光谱表征
DOI：
10.1007/978-3-642-23366-1_3
复制
发表时间：
2012
影响因子：
4.6
通讯作者：
D. Krol
中科院分区：
文献类型：
--
作者：
D. Krol
自从第一次飞秒激光波导写入实验以来，关于折射率变化的机制是什么的问题立即出现。在这个方向上已经作出了几次努力，但尚未得出明确的答案。事实上，已经观察到几个因素决定了决定折射率变化的实际机制，如辐照条件和材料组成。然而，在微观层面上了解材料的变化对于优化飞秒激光加工条件和材料成分都很重要。它还可以为飞秒激光改进过程中涉及的物理机制提供更详细的见解，以增强其能力。共聚焦荧光和拉曼光谱是研究材料结构的有力工具。本章将回顾使用这些技术来表征飞秒激光诱导的玻璃结构变化所获得的结果。重点将放在与波导和折射率变化相关的结构上，因为这是迄今为止飞秒激光在玻璃中加工最活跃的研究领域。
Since the first experiments on femtosecond laser waveguide writing the question on which mechanisms are responsible for the refractive index change immediately arose. Several efforts have been made in that direction but no conclusive answer has been achieved yet. In fact, it has been observed that several factors determine the actual mechanism dominating the refractive index change, such as the irradiation conditions and the material composition. Understanding the materials change at the microscopic level is however important in terms of optimization of both the fs-laser processing conditions and the material composition. It also can provide more detailed insight into the physical mechanisms involved in the fs-laser modification process to enhance its capabilities. Confocal fluorescence and Raman spectroscopy are powerful tools to investigate the material structure. This chapter will review the results obtained by using these techniques to characterize fs-laser induced structural changes in glass. The focus will be on structures related to waveguides and refractive index changes, since this has been the most active research area of fs-laser processing in glass to date.
DOI：
10.1109/jstqe.2008.925809
发表时间：
2008-09-01
影响因子：
4.9
作者：
Ams, Martin;Marshall, Graham D.;Withford, Michael J.
通讯作者：
Withford, Michael J.