High sensitivity gas sensor based on IR spectroscopy technology and application

Hengyi Li

doi:10.1007/s13320-015-0290-8

Photonic Sensors ›› 2015, Vol. 6 ›› Issue (2) : 127 -131. DOI: 10.1007/s13320-015-0290-8

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High sensitivity gas sensor based on IR spectroscopy technology and application

Hengyi Li ¹^,^a

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Abstract

Due to extremely effective advantages of the quantum cascade laser spectroscopy and technology for trace gas detection, this paper presents spectroscopy scanning, the characteristics of temperature tuning, system resolution, sensitivity, and system stability with the application of the presented gas sensor. Experimental results showed that the sensor resolution was ≤0.01cm⁻¹ (equivalent to 0.06 nm), and the sensor sensitivity was at the level of 194 ppb with the application of H₂CO measurement.

Keywords

Quantum cascade laser / IR spectroscopy / high sensitivity / formaldehyde

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Hengyi Li. High sensitivity gas sensor based on IR spectroscopy technology and application. Photonic Sensors, 2015, 6(2): 127-131 DOI:10.1007/s13320-015-0290-8

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