Optimizing the loss of one-dimensional photonic crystal towards high-sensitivity Bloch-surface-wave sensors under intensity interrogation scheme

2016 ◽  
Author(s):  
Weijing Kong ◽  
Yuhang Wan ◽  
Kun Du ◽  
Wenhui Zhao ◽  
Shuang Wang ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Surface Wave ◽  
High Sensitivity ◽  
One Dimensional ◽  
Dimensional Photonic Crystal ◽  
Bloch Surface Wave ◽  
Wave Sensors

scholarly journals Bloch surface wave-coupled emission from quantum dots by ensemble and single molecule spectroscopy

RSC Advances ◽  
2015 ◽  
Vol 5 (67) ◽  
pp. 54403-54411 ◽  
Author(s):  
Krishanu Ray ◽  
Ramachandram Badugu ◽  
Joseph R. Lakowicz
Keyword(s):  
Quantum Dots ◽  
Photonic Crystal ◽  
Surface Wave ◽  
Single Molecule ◽  
Single Molecule Spectroscopy ◽  
One Dimensional ◽  
Fluorescence Studies ◽  
Emission Lifetime ◽  
Crystal Substrate ◽  
Bloch Surface Wave

Single particle fluorescence studies demonstrate increased brightness and reduced emission lifetime of individual QD575 on one-dimensional photonic crystal substrate.

scholarly journals Single air-mode resonance photonic crystal nanofiber cavity for ultra-high sensitivity refractive index sensing

2020 ◽  
Vol 50 (2) ◽  
Author(s):  
Yanni Zhang ◽  
Jiaxi Yang ◽  
Meiqi Song ◽  
Xuan Zhang ◽  
Daquan Yang
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Extinction Ratio ◽  
High Sensitivity ◽  
High Order Mode ◽  
Resonance Wavelength ◽  
Sensitivity Index ◽  
One Dimensional ◽  
Dimensional Photonic Crystal ◽  
Refractive Index Sensing

We propose a design of series-connected one-dimensional photonic crystal nanofiber cavity sensor (1-D PC-NCS) and one-dimensional photonic crystal nanofiber bandgap filter (1-D PC-NBF). The proposed structure can get a single air mode for refractive index sensing with its extinction ratio of 58.64 dB. It filters out the high order mode and reduces the interaction between signals. By 3D FDTD, the calculated sensitivity is 848.18 nm/RIU (RIU – refractive index unit). Compared with general silicon on-chip nanobeam cavity, the sensitivity is increased by eight times. The additional 1-D PC-NBF will not change the sensitivity and the position of the resonance wavelength. Therefore, the new design we propose addresses the issue of crosstalk, and can be applied to ultra-high sensitivity index-based gas sensing and biosensing without the need for complicated coupling systems.

scholarly journals Directional luminescence of the diamond NV center via Bloch surface waves in one-dimensional photonic crystals

2021 ◽  
Vol 2015 (1) ◽  
pp. 012022
Author(s):  
A A Bragina ◽  
K R Safronov ◽  
V O Bessonov ◽  
A A Fedyanin
Keyword(s):  
Angular Distribution ◽  
Photonic Crystal ◽  
Surface Wave ◽  
Photonic Crystals ◽  
Surface Waves ◽  
Coupling Efficiency ◽  
One Dimensional ◽  
Close Proximity ◽  
Nv Center ◽  
Bloch Surface Wave

Abstract In this work, we numerically study the luminescence of nanodiamonds with NV centres embedded in a polymer layer on the surface of one-dimensional photonic crystal. The interaction of NV center spontaneous emission with the Bloch surface wave (BSW) is demonstrated. The presence of a photonic crystal leads to a change in the angular distribution of the emitter radiation due to the coupling of luminescence to BSW. We show that the best coupling efficiency of 71% is observed when NV centres are located in the close proximity to the BSW field maximum.

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