Prof. Yufei Ma
Harbin Institute of Technology, China
Title: Laser Spectroscopic Sensing Technology Based on Quartz Tuning Fork Detection
Abstract:
Gas detection technologies based on laser spectroscopy offer significant advantages, including high sensitivity and strong selectivity. A quartz tuning fork (QTF), commonly used in electronic watches as a frequency reference, is essentially a quartz oscillator with its protective casing removed. Quartz tuning forks feature several advantages, such as low cost, compact size, and high quality factor (Q factor). As detectors, quartz tuning forks have been widely employed in various applications, including atomic force microscopy probes, force sensing, magnetic force microscopy, and gas sensing.
In this presentation, we will focus on laser spectroscopic gas sensing technologies based on quartz tuning fork detection. Specifically, the piezoelectric effect and photoinduced thermoelastic effect of quartz tuning forks will be utilized to measure the concentration of target gases. The presentation will mainly introduce the recent research achievements of our research group in laser spectroscopic detection technologies based on quartz tuning forks, as well as other types of laser spectroscopic gas detection technologies.
Biography:
Yufei Ma is a Professor at the School of Astronautics, Harbin Institute of Technology. He was elected an Optica Fellow and serves as the principal investigator for a number of projects including the Key Program and Excellent Young Scientists Fund of the National Natural Science Foundation of China, pre‑research projects for Manned Space Program, and commissioned technical projects from Huawei. He holds editorial positions as Subject Editor‑in‑Chief, Associate Editor and Editorial Board Member for multiple SCI journals, including Photoacoustics, Opto‑Electronic Advances, Optics Express, Optics Letters, and Chinese Optics Letters. He is also an editorial board member of Acta Photonica Sinica and Infrared and Laser Engineering. He has published more than one hundred academic papers in journals such as Light: Science & Applications, Reports on Progress in Physics, Advanced Photonics, Opto‑Electronic Advances, PhotoniX, Applied Physics Reviews, and Laser & Photonics Reviews.