Recent progress on laser absorption spectroscopy for determination of gaseous chemical species

B Fu, C Zhang, W Lyu, J Sun, C Shang… - Applied spectroscopy …, 2022 - Taylor & Francis
Laser absorption spectroscopy combined with spectral analysis has been extensively
investigated in detection and measurements of gas samples because of their broad …

[HTML][HTML] Biophotonics technologies for the detection of VOCs in healthcare applications: Are we there yet?

S Zhang, K Vinod Ram, RZT Chua, JCY Foo… - Applied Physics …, 2023 - pubs.aip.org
The detection of volatile organic compounds (VOCs) has emerged as one of the most
promising diagnostic approaches in the field of medicine. For example, human breath …

[HTML][HTML] Spectroscopic trace gas detection in air-based gas mixtures: Some methods and applications for breath analysis and environmental monitoring

J Xia, F Zhu, J Bounds, E Aluauee… - Journal of Applied …, 2022 - pubs.aip.org
Laser absorption spectroscopy as a powerful tool for detecting trace gases has been widely
used in the monitoring of atmospheric greenhouse gases, pollutions, and respiration …

The most common methods for breath acetone concentration detection: A review

Y Obeidat - IEEE Sensors Journal, 2021 - ieeexplore.ieee.org
The number of diabetic patients in the world continue to increase. Therefore, new methods
need to be developed to help the lives of affected people by improving the ability of diabetic …

Soil respiration analysis using a mid-infrared quantum cascade laser and calibration-free WMS-based dual-gas sensor

N Liu, L Xu, S Zhou, L Zhang, J Li - Analyst, 2021 - pubs.rsc.org
A high response and sensitive dual-gas sensor based on calibration-free wavelength
modulation spectroscopy (CF-WMS) has been developed for the simultaneous detection of …

The ketogenic diet: breath acetone sensing technology

O Alkedeh, R Priefer - Biosensors, 2021 - mdpi.com
The ketogenic diet, while originally thought to treat epilepsy in children, is now used for
weight loss due to increasing evidence indicating that fat is burned more rapidly when there …

Mid-infrared absorption spectroscopy with enhanced detection performance for biomedical applications

D An, F Sun, Y Bian, J Ni, QJ Wang… - Applied Spectroscopy …, 2023 - Taylor & Francis
Mid-infrared absorption spectroscopy is a powerful tool to measure and analyze
composition, concentration and structure of substance molecules. Due to the advantages of …

Measurement of hydrogen and nitrogen via collision-induced infrared absorption

C Wei, A Klingberg, CL Strand, RK Hanson - International Journal of …, 2024 - Elsevier
A novel spectroscopic approach has been developed for laser absorption sensing of
homonuclear diatomic molecules at high pressures relevant to modern energy devices. The …

Miniature quartz tuning fork-based broad spectral coverage and high detectivity infrared spectroscopy

C Lou, X Liu, Y Wang, R Li, L Huang, X Liu - Infrared Physics & Technology, 2022 - Elsevier
This paper reports a type of detector based on the thermoelastic effect of a miniature quartz
tuning fork (mQTF) for infrared spectroscopy applications. Instead of using a pyroelectric …

Sensitivity and accuracy enhanced wavelength modulation spectroscopy based on PSD analysis

Y Wang, B Zhou, C Liu - IEEE Photonics Technology Letters, 2021 - ieeexplore.ieee.org
This letter proposes a novel method to implement calibration-free wavelength modulation
spectroscopy (CF-WMS) with enhanced sensing sensitivity and accuracy. Compared with …