Photonic crystal fiber methane sensor based on modal interference with an ultraviolet curable fluoro-siloxane nano-film incorporating cryptophane A

Yang, Ji; Zhou, Lang; Che, Xin; Huang, Jing; Li, Xueming; Chen, Weimin

doi:10.1016/j.snb.2016.05.125

Cited by 66 publications

(24 citation statements)

References 22 publications

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“…According to the experimental results in Ref. [19], the value of n film decreases linearly by 0.0038 for every 1% increase in concentration within the range of 0%-3.5%. Equation 2shows the relationship between the n film and C CH 4 , and the reaction is reversible.…”

Section: Model and Methodsmentioning

confidence: 88%

Transverse-Stress Compensated Methane Sensor Based on Long-Period Grating in Photonic Crystal Fiber

et al. 2019

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A high-sensitive and transverse-stress compensated methane sensor based on a photonic crystal fiber long-period grating (PCF-LPG) is proposed. The outermost layer of the PCF consists of six large sideholes, five of which are coated with methane-sensitive compound film to achieve methane measurement. Such side-hole structure is helpful for gas sensitive reaction, but not conducive to avoiding external stress interference. Therefore, the last large hole is plated with silver layer to eliminate the cross-sensitivity effect through adding a Surface Plasmon Resonance (SPR) sensing channel with the consideration of photo-elastic effect and material deformation. Results show that the methane gas sensitivity can reach up to 6.39nm/% with the transverse-stress compensation. The sensor is very simple and effective, which provides a new method of gas measurement combined with different actual conditions. INDEX TERMS Methane sensor, transverse-stress compensation, photonic crystal fiber long period grating, surface plasmon resonance.

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Section: Model and Methodsmentioning

confidence: 88%

Transverse-Stress Compensated Methane Sensor Based on Long-Period Grating in Photonic Crystal Fiber

et al. 2019

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“…Then, the fiber is connected to a syringe from the other end, and liquid can be pumped into the open holes throughout the whole fiber. Moreover, the uniform thickness methane-sensitive compound film can be coated by a capillary dip-coating technique at a withdrawal speed of 12 cm/min [22]. After coating the dilute solution onto the internal surface of air holes, the 0.4 MPa nitrogen stream is used to polish the inner surface of film.…”

Section: Temperature Sensitive Liquidmentioning

confidence: 99%

“…Therefore, it is necessary to explore an effective sensing method for the real-time measurement of methane concentration. Many methane-sensing structures have been proposed, including long period fiber grating (LPFG) [6][7][8], modal interference (MI) [9], surface plasmon resonance (SPR) [10], cryptophane-E infiltrated photonic crystal (PC) micro-cavity [11], and optical absorption spectroscopy technology [12]. Although these configurations have their own advantages, most of them are interference-sensitive not only to the methane concentration but also to the temperature.…”

Section: Introductionmentioning

confidence: 99%

High Sensitive Methane Sensor With Temperature Compensation Based on Selectively Liquid-Infiltrated Photonic Crystal Fibers

et al. 2019

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A highly sensitive and temperature-compensated methane sensor based on a liquid-infiltrated photonic crystal fiber (PCF) is proposed. Two bigger holes near the core area are coated with a methane-sensitive compound film, and specific cladding air holes are infiltrated into the liquid material to form new defective channels. The proposed sensor can achieve accurate measurement of methane concentration through temperature compensation. The sensitivity can reach to 20.07 nm/% with a high linearity as the methane concentration is within the range of 0%-3.5% by volume. The proposed methane sensor can not only improve the measurement accuracy, but also reduce the metrical difficulty and simplify the process.

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“…); however the high cost and erroneous result when detecting molecules with an identical mass number to atomic number ratio (M/Z) compelled researchers to look for alternative techniques like electrochemical, chemiresistive diode laser, IR-absorption, optical ber, ber-grating, and cataluminescence based methane sensors. [3][4][5][6][7][8] Among them, chemiresistive sensors have several advantages over others including easy fabrication, integration with the current CMOS technology, and cost effectiveness. Most of the chemiresistive methane sensing devices employ metal oxides and their derivatives as the sensing element.…”

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confidence: 99%

Boron nanostructures obtainedviaultrasonic irradiation for high performance chemiresistive methane sensors

2020

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Photonic crystal fiber methane sensor based on modal interference with an ultraviolet curable fluoro-siloxane nano-film incorporating cryptophane A

Cited by 66 publications

References 22 publications

Transverse-Stress Compensated Methane Sensor Based on Long-Period Grating in Photonic Crystal Fiber

Transverse-Stress Compensated Methane Sensor Based on Long-Period Grating in Photonic Crystal Fiber

High Sensitive Methane Sensor With Temperature Compensation Based on Selectively Liquid-Infiltrated Photonic Crystal Fibers

Boron nanostructures obtainedviaultrasonic irradiation for high performance chemiresistive methane sensors

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