The pulse duration dependence of femtosecond laser induced refractive index modulation in fused silica

2004 ◽  
Vol 6 (8) ◽  
pp. 787-790 ◽  
Author(s):  
Hengchang Guo ◽  
Hongbing Jiang ◽  
Ying Fang ◽  
Chao Peng ◽  
Hong Yang ◽  
...  
Keyword(s):  
Refractive Index ◽  
Femtosecond Laser ◽  
Pulse Duration ◽  
Fused Silica ◽  
Refractive Index Modulation ◽  
Duration Dependence ◽  
Index Modulation

scholarly journals Index Modulation Embedded in Type I Waveguide Written by Femtosecond Laser in Fused Silica

Micromachines ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1579
Author(s):  
Jing Lv ◽  
Razvan Stoian ◽  
Guanghua Cheng ◽  
Kedian Wang
Keyword(s):  
Refractive Index ◽  
Cross Sections ◽  
Scanning Speed ◽  
Fused Silica ◽  
Transport Processes ◽  
Refractive Index Modulation ◽  
Type I ◽  
Mechanical Perturbation ◽  
Potential Applications ◽  
Index Modulation

Slit-shaped laser beams focused in bulk optical materials can realize embedded waveguides with circular cross sections consisting of positive index change type I traces. In these kinds of waveguide traces, a peculiar periodical refractive index modulation was observed in type I waveguides with two different femtosecond lasers. The direction of refractive index modulation can be controlled with the slit configuration, and its period can be controlled by mechanical perturbation of the stages and the scanning speed. We argue that platform perturbation and dynamical thermal transport processes during the scan are generating factors in the appearance of this modulation. The embedded microstructures in waveguides can provide spectrum modulation, which may have potential applications in optical sensing, filtering, and phase control.

Pulse duration dependence of femtosecond-laser-fabricated nanogratings in fused silica

2005 ◽  
Vol 87 (1) ◽  
pp. 014104 ◽  
Author(s):  
C. Hnatovsky ◽  
R. S. Taylor ◽  
P. P. Rajeev ◽  
E. Simova ◽  
V. R. Bhardwaj ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Pulse Duration ◽  
Fused Silica ◽  
Duration Dependence

Optical properties of a photopolymer with large refractive index modulation for holographic application

2004 ◽  
Author(s):  
Chang-Won Shin ◽  
Nam Kim ◽  
Won-Sun Kim ◽  
Yong-Cheol Jeong ◽  
Jung-Ki Park
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Refractive Index Modulation ◽  
Index Modulation

scholarly journals Wavelength selective refractive index modulation in a ROMP derived polymer bearing phenyl- and ortho-nitrobenzyl ester groups

2013 ◽  
Vol 1 (25) ◽  
pp. 3931 ◽  
Author(s):  
Matthias Edler ◽  
Stefan Mayrbrugger ◽  
Alexander Fian ◽  
Gregor Trimmel ◽  
Simone Radl ◽  
...  
Keyword(s):  
Refractive Index ◽  
Refractive Index Modulation ◽  
Polymer Bearing ◽  
Index Modulation

Refractive-Index Modulation by Means of Photosensitive Liquid Crystals

2002 ◽  
Vol 375 ◽  
pp. 45-60 ◽  
Author(s):  
Tomiki Ikeda ◽  
Satoshi Yoneyama ◽  
Takahiro Yamamoto ◽  
Makoto Hasegawa
Keyword(s):  
Refractive Index ◽  
Liquid Crystals ◽  
Refractive Index Modulation ◽  
Index Modulation
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