The influence of femtosecond laser wavelength on waveguide fabrication inside fused silica

被引：35

作者：

Hernandez-Rueda, Javier ^{[1
,2
]}

Clarijs, Jasper ^{[2
]}

van Oosten, Dries ^{[2
]}

Krol, Denise M. ^{[1
]}

机构：

[1] Univ Calif Davis, Dept Mat Sci & Engn, Davis, CA 95616 USA

[2] Univ Utrecht, Debye Inst Nanomat Sci, POB 80000, NL-3508 TA Utrecht, Netherlands

来源：

APPLIED PHYSICS LETTERS | 2017年 / 110卷 / 16期

基金：

美国国家科学基金会;

关键词：

INDUCED DAMAGE; DIELECTRICS; IONIZATION; BREAKDOWN; GLASSES; NANOSECOND; TIME;

D O I：

10.1063/1.4981124

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated the effect of the laser wavelength on the fabrication of optical waveguides and tracks of modified material via direct laser writing inside fused silica. The size of the laser-inscribed tracks, the material modification thresholds, the structural changes, and the waveguide writing energy range show a strong dependence on laser wavelengths ranging from ultraviolet to near-infrared. We used numerical simulations that consider the laser-excited electron plasma dynamics (via multiple rate equations) along with Gaussian beams theory to calculate the size of the laser-affected volume that has been further compared with the experimental results. This study yields insight into how to predict and design the spatial features of laser-inscribed lines and also aids of understanding the underlying physical mechanisms linked to laser-glass interaction when using different laser wavelengths. Published by AIP Publishing.

引用

页数：5

共 36 条

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