Guided-mode-leaky-mode-guided-mode fiber structure and its application to high refractive index sensing

2012 ◽  
Vol 37 (4) ◽  
pp. 587 ◽  
Author(s):  
Li Yang ◽  
Linlin Xue ◽  
Di Che ◽  
Jingren Qian
Keyword(s):  
Refractive Index ◽  
High Refractive Index ◽  
Leaky Mode ◽  
Fiber Structure ◽  
Refractive Index Sensing ◽  
Guided Mode

Three-band perfect absorber with high refractive index sensing based on active tunable Dirac semimetal

2021 ◽  
Author(s):  
Zhiyou Li ◽  
Zao Yi ◽  
Tinting Liu ◽  
Li Liu ◽  
Xifang Chen ◽  
...  
Keyword(s):  
Refractive Index ◽  
High Refractive Index ◽  
Gold Layer ◽  
Perfect Absorber ◽  
Refractive Index Sensing ◽  
Dirac Semimetal

In this paper, we designed a three-band narrowband perfect absorber based on Bulk Dirac semimetallic (BDS) metamaterials. The absorber consists of a hollow Dirac semimetallic layer above, a gold layer...

Double Fano-type resonances in heptamer-hole array transmission spectra with high refractive index sensing

2015 ◽  
Vol 62 (15) ◽  
pp. 1241-1247 ◽  
Author(s):  
Jinna He ◽  
Pei Ding ◽  
Junqiao Wang ◽  
Chunzhen Fan ◽  
Erjun Liang
Keyword(s):  
Refractive Index ◽  
High Refractive Index ◽  
Hole Array ◽  
Transmission Spectra ◽  
Refractive Index Sensing

scholarly journals Optical Waveguides with Compound Multiperiodic Grating Nanostructures for Refractive Index Sensing

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Lars Thorben Neustock ◽  
Sabrina Jahns ◽  
Jost Adam ◽  
Martina Gerken
Keyword(s):  
Refractive Index ◽  
Optical Waveguides ◽  
Spectral Characteristics ◽  
Quality Factors ◽  
Refractive Index Sensitivity ◽  
Refractive Index Sensing ◽  
Guided Mode ◽  
Duty Cycles ◽  
Rigorous Coupled Wave ◽  
Index Sensitivity

The spectral characteristics and refractive index sensitivity of compound multiperiodic grating waveguides are investigated in theory and experiment. Compound gratings are formed by superposition of two or more monoperiodic gratings. Compared to monoperiodic photonic crystal waveguides, compound grating waveguides offer more degrees of design freedom by choice of component grating periods and duty cycles. Refractive index sensing is achieved by evaluating the wavelength or intensity of guided mode resonances in the reflection spectrum. We designed, fabricated, and characterized 24 different compound multiperiodic nanostructured waveguides for refractive index sensing. Simulations are carried out with the Rigorous Coupled Wave Algorithm (RCWA). The resulting spectra, resonance sensitivities, and quality factors are compared to monoperiodic as well as to three selected aperiodic nanostructures (Rudin-Shapiro, Fibonacci, and Thue-Morse). The refractive index sensitivity of the TE resonances is similar for all types of investigated nanostructures. For the TM resonances the compound multiperiodic nanostructures exhibit higher sensitivity values compared to the monoperiodic nanostructure and similar values as the aperiodic nanostructures. No significant influence of the compound grating duty cycles on the sensitivity is observed.

TCF-MMF-TCF fiber structure based interferometer for refractive index sensing

2015 ◽  
Vol 69 ◽  
pp. 58-61 ◽  
Author(s):  
Haiwei Fu ◽  
Huidong Li ◽  
Min Shao ◽  
Na Zhao ◽  
Yinggang Liu ◽  
...  
Keyword(s):  
Refractive Index ◽  
Fiber Structure ◽  
Refractive Index Sensing
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