On-chip sensing of volatile organic compounds in water by hybrid polymer and silicon photonic-crystal slot-waveguide devices

2012 ◽  
Author(s):  
Swapnajit Chakravarty ◽  
Wei-Cheng Lai ◽  
Yi Zou ◽  
Ray T. Chen
Keyword(s):  
Photonic Crystal ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Slot Waveguide ◽  
Hybrid Polymer ◽  
Waveguide Devices ◽  
Silicon Photonic ◽  
Volatile Organic ◽  
On Chip

Integrated Approach to Monitoring Volatile Organic Compounds by Photonic-Crystal Sensor Matrices

2021 ◽  
Vol 66 (2) ◽  
pp. 217-224
Author(s):  
E. S. Bol’shakov ◽  
A. V. Ivanov ◽  
A. V. Garmash ◽  
A. S. Samokhin ◽  
A. A. Kozlov ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Integrated Approach ◽  
Volatile Organic

scholarly journals Chemical sensor based on a solid-core photonic crystal fiber interferometer

2019 ◽  
Vol 13 (27) ◽  
pp. 127-143
Author(s):  
Rawaa K. Zarzoor
Keyword(s):  
Photonic Crystal ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Photonic Crystal Fiber ◽  
Chemical Sensor ◽  
Pump Light ◽  
Solid Core ◽  
Crystal Fiber ◽  
Sensing Applications ◽  
Volatile Organic

Photonic crystal fiber interferometers are used in many sensing applications. In this work, an in-reflection photonic crystal fiber (PCF) based on Mach-Zehnder (micro-holes collapsing) (MZ) interferometer, which exhibits high sensitivity to different volatile organic compounds (VOCs), without the needing of any permeable material. The interferometer is robust, compact, and consists of a stub photonic crystal fiber of large-mode area, photonic crystal fiber spliced to standard single mode fiber (SMF) (corning-28), this splicing occurs with optimized splice loss 0.19 dB In the splice regions the voids of the holey fiber are completely collapsed, which allows the excitation and recombination of core and cladding modes. The device reflection spectrum exhibits a sinusoidal interference pattern which shifts differently when the voids of the PCF are infiltrated with VOC molecules. The volume of voids responsible for the shift is less than 5microliters whereas the detectable levels are in the nanomole range. Laser diode with a wavelength 1550nm has been used as a pump light source. Two types of chemical liquids used (N-Hexane, and Propanol). The detection limits of our device associated with the maximum shifts of the wavelength is 4.4 nm for N-Hexane vapor when the length of the head sensor 20mm. In this work, the maximum sensitivity obtained of volatile organic compounds is 15420 nm/mol at the vapor of N-Hexane.

scholarly journals GC-on-chip: integrated column and photoionization detector

Lab on a Chip ◽  
2015 ◽  
Vol 15 (7) ◽  
pp. 1748-1758 ◽  
Author(s):  
M. Akbar ◽  
H. Shakeel ◽  
M. Agah
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Sensitive Detection ◽  
Efficient Separation ◽  
Highly Efficient ◽  
Volatile Organic ◽  
Photoionization Detector ◽  
On Chip

We present a GC-on-chip module capable of providing highly efficient separation and ultra-sensitive detection of volatile organic compounds on a single platform.

High-Performance Volatile Organic Compounds Microsensor Based on Few-Layer MoS2 -Coated Photonic Crystal Cavity

2018 ◽  
Vol 6 (6) ◽  
pp. 1700882 ◽  
Author(s):  
Chenyang Zhao ◽  
Xuetao Gan ◽  
Qingchen Yuan ◽  
Siqi Hu ◽  
Liang Fang ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
High Performance ◽  
Photonic Crystal Cavity ◽  
Volatile Organic
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