High refractive index modification of SiO2 created by femtosecond laser nanostructuring

被引：3
|
作者：
Barillot, T. [1 ,2 ]
Grojo, D. [1 ,2 ,3 ]
Gertsvolf, M. [1 ,2 ]
Lei, S. [4 ]
Rayner, D. M. [1 ,2 ]
Corkum, P. B. [1 ,2 ]
机构：
[1] CNR, Joint Lab Attosecond Sci, Ottawa, ON K1A 0R6, Canada
[2] Univ Ottawa, Ottawa, ON K1A 0R6, Canada
[3] Univ Mediterranee, CNRS, Lab LP3, UMR6182, F-13288 Marseille 9, France
[4] Kansas State Univ, Manhattan, KS 66506 USA
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2010年 / 43卷 / 12期
关键词：
ORGANIZED PLANAR NANOCRACKS; WAVE-GUIDES; FABRICATION; GLASS;
D O I：
10.1088/0953-4075/43/12/125401
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
By comparing simulations with experiment, we show that the effective refractive index of fused SiO2 can be locally reduced by (1.8 +/- 0.2)% by femtosecond laser nanostructuring. We create a microlens of material containing a planar array of nanocracks embedded inside fused silica and probe how it refracts or absorbs light as a function of pulse energy. The self-generated microlens lowers the peak light intensity by deflecting the light around the focus. We obtain the refractive index by simulating the beam transport using the 3D wave equation in conjunction with the measured dimensions of the modified material.
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页数：5
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