Optofluidic Immunosensor Based on Resonant Wavelength Shift of a Hollow Core Fiber for Ultratrace Detection of Carcinogenic Benzo[a]pyrene

ACS Photonics ◽  
2018 ◽  
Vol 5 (4) ◽  
pp. 1273-1280 ◽  
Author(s):  
Ran Gao ◽  
Dan-Feng Lu ◽  
Meng-Ying Zhang ◽  
Zhi-Mei Qi
Keyword(s):  
Resonant Wavelength ◽  
Wavelength Shift ◽  
Hollow Core ◽  
Ultratrace Detection ◽  
Core Fiber ◽  
Resonant Wavelength Shift

Giant field enhancement and resonant wavelength shift through a composite nanostructure

2014 ◽  
Vol 321 ◽  
pp. 47-50 ◽  
Author(s):  
Qingquan Chen ◽  
Yiping Zuo ◽  
Wei Cai ◽  
Bin Zhang ◽  
Leiting Pan ◽  
...  
Keyword(s):  
Field Enhancement ◽  
Resonant Wavelength ◽  
Wavelength Shift ◽  
Resonant Wavelength Shift

scholarly journals Design of metallic nanocylinder array waveguide for controlling resonant wavelength shift

2021 ◽  
Author(s):  
Yuki Ando ◽  
Motohiro Endo ◽  
Di Wu ◽  
Takashi Yamaguchi ◽  
Seiya Kishimoto ◽  
...  
Keyword(s):  
Resonant Wavelength ◽  
Wavelength Shift ◽  
Resonant Wavelength Shift

The Influence of Glucose Concentration to Resonant Wavelength Shift of Polymer-Based Microring Resonators

2015 ◽  
Vol 1112 ◽  
pp. 32-36 ◽  
Author(s):  
Budi Mulyanti ◽  
Lilik Hasanah ◽  
Tommi Hariyadi ◽  
Rischa Novitasari ◽  
Arjuni B. Pantjawati ◽  
...  
Keyword(s):  
Glucose Concentration ◽  
Free Spectral Range ◽  
Circular Waveguide ◽  
Glucose Sensing ◽  
Resonant Wavelength ◽  
Microring Resonators ◽  
Wavelength Shift ◽  
Q Factor ◽  
Incident Wavelength ◽  
Resonant Wavelength Shift

Microring resonators (MRRs) is a compact and multi-functioned device which is mainly characterized by free spectral range (FSR) and quality factor (Q-factor). In this paper, the influence of glucose concentration to the resonant wavelength shift of MRRs is presented. The calculation was carried out using semi-numerical method for different values of FSR and Q-factor. The parameters used in the calculation including incident wavelength, ring radii of circular waveguide, gap sizes between circular and straight waveguides, the dimension of both waveguides, and refractive index of polymer, SiO2 and glucoce solution. The results show that glucose affects the resonant wavelength shift for each values of FSR and Q-factor. The increase of the glucose concentration causes the increase of the resonant wavelength shift, therefore this polymer-based MRR’s can be used for glucose sensing application.

scholarly journals Liquid level sensor based on dynamic Fabry–Perot interferometers in processed capillary fiber

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Pablo Roldán-Varona ◽  
Rosa Ana Pérez-Herrera ◽  
Luis Rodríguez-Cobo ◽  
Luis Reyes-González ◽  
Manuel López-Amo ◽  
...  
Keyword(s):  
Optical Fiber Sensor ◽  
Liquid Level ◽  
Hollow Core ◽  
Immiscible Liquids ◽  
Fabry Perot ◽  
Detection Mode ◽  
Level Sensor ◽  
Core Fiber ◽  
Liquid Level Sensor ◽  
Silica Capillary

AbstractIn this work, a novel optical fiber sensor capable of measuring both the liquid level and its refractive index is designed, manufactured and demonstrated through simulations and experimentally. For this, a silica capillary hollow-core fiber is used. The fiber, with a sensing length of 1.55 mm, has been processed with a femtosecond laser, so that it incorporates four holes in its structure. In this way, the liquid enters the air core, and it is possible to perform the sensing through the Fabry–Perot cavities that the liquid generates. The detection mode is in reflection. With a resolution of 4 μm (liquid level), it is in the state of the art of this type of sensor. The system is designed so that in the future it will be capable of measuring the level of immiscible liquids, that is, liquids that form stratified layers. It can be useful to determine the presence of impurities in tanks.

scholarly journals Vacuum Ultraviolet Absorption Spectroscopy Analysis of Breath Acetone Using a Hollow Optical Fiber Gas Cell

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 478
Author(s):  
Yudai Kudo ◽  
Saiko Kino ◽  
Yuji Matsuura
Keyword(s):  
Body Fat ◽  
Vacuum Ultraviolet ◽  
Exhaled Breath ◽  
Hollow Core ◽  
Gas Cell ◽  
Human Breath ◽  
Healthy Human ◽  
Acetone Concentration ◽  
Core Fiber ◽  
Breath Acetone

Human breath is a biomarker of body fat metabolism and can be used to diagnose various diseases, such as diabetes. As such, in this paper, a vacuum ultraviolet (VUV) spectroscopy system is proposed to measure the acetone in exhaled human breath. A strong absorption acetone peak at 195 nm is detected using a simple system consisting of a deuterium lamp source, a hollow-core fiber gas cell, and a fiber-coupled compact spectrometer corresponding to the VUV region. The hollow-core fiber functions both as a long-path and an extremely small-volume gas cell; it enables us to sensitively measure the trace components of exhaled breath. For breath analysis, we apply multiple regression analysis using the absorption spectra of oxygen, water, and acetone standard gas as explanatory variables to quantitate the concentration of acetone in breath. Based on human breath, we apply the standard addition method to obtain the measurement accuracy. The results suggest that the standard deviation is 0.074 ppm for healthy human breath with an acetone concentration of around 0.8 ppm and a precision of 0.026 ppm. We also monitor body fat burn based on breath acetone and confirm that breath acetone increases after exercise because it is a volatile byproduct of lipolysis.

scholarly journals Transmission of 61 C-band Channels over Record Distance of Hollow-Core-Fiber with L-band Interferers

2020 ◽  
pp. 1-1
Author(s):  
Antonino Nespola ◽  
Stefano Straullu ◽  
Thomas D. Bradley ◽  
Kerrianne Harrington ◽  
Hesham Sakr ◽  
...  
Keyword(s):  
Hollow Core ◽  
Core Fiber ◽  
L Band
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