Narrowband 1.5-μm Bragg filter based on a polymer waveguide with a laser-written refractive-index grating

2010 ◽  
Vol 40 (8) ◽  
pp. 739-742 ◽  
Author(s):  
Viktor I Sokolov ◽  
Vladislav Ya Panchenko ◽  
V N Seminogov
Keyword(s):  
Refractive Index ◽  
Polymer Waveguide ◽  
Refractive Index Grating

scholarly journals Polymer Waveguide Coupled Surface Plasmon Refractive Index Sensor: A Theoretical Study

2020 ◽  
Vol 10 (4) ◽  
pp. 353-363
Author(s):  
Lanting Ji ◽  
Shuqing Yang ◽  
Rongna Shi ◽  
Yujie Fu ◽  
Juan Su ◽  
...  
Keyword(s):  
Refractive Index ◽  
Surface Plasmon ◽  
Low Cost ◽  
High Refractive Index ◽  
Waveguide Layer ◽  
Polymer Materials ◽  
Refractive Index Sensor ◽  
Polymer Waveguide ◽  
Compact Size ◽  
Potential Applications

Abstract A waveguide coupled surface plasmon sensor for detection of liquid with high refractive index (RI) is designed based on polymer materials. The effects of variation of the thickness of the Au film, polymethyl methacrylate (PMMA) buffer, and waveguide layer on the sensing performance of the waveguide are comprehensively investigated by using the finite difference method. Numerical simulations show that a thinner gold film gives rise to a more sensitive structure, while the variation of the thickness of the PMMA buffer and waveguide layer has a little effect on the sensitivity. For liquid with high RI, the sensitivity of the sensor increases significantly. When RI of liquid to be measured increases from 1.45 to 1.52, the sensitivity is as high as 4518.14nm/RIU, and a high figure of merit of 114.07 is obtained. The waveguide coupled surface plasmon RI sensor shows potential applications in the fields of environment, industry, and agriculture sensing with the merits of compact size, low cost, and high integration density.

Observation of Optical Bistability in Two-Dimensional Volume Refractive Index Grating Thermally Fixed in LiNbO 3 :Fe Crystal

1996 ◽  
Vol 13 (6) ◽  
pp. 440-443 ◽  
Author(s):  
Zhen-lin Wang ◽  
Jun Wu ◽  
Zhen-ju Yang ◽  
Yong-yuan Zhu ◽  
Min Nai-ben
Keyword(s):  
Refractive Index ◽  
Optical Bistability ◽  
Two Dimensional ◽  
Refractive Index Grating
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