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Latest Applications of Laser Measurement Technologies

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Physics General".

Deadline for manuscript submissions: 20 September 2026 | Viewed by 544

Special Issue Editor


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Guest Editor
National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin 150001, China
Interests: gas sensor; optical sensor; laser spectroscopy based sensor; optical sensor applications
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Laser measurement technologies are widely used for the online measurements of physical, biological, and chemical quantities. In recent years, laser measurement technologies have undergone rapid development because of the emergence of advanced light source and detection strategies. Laser measurement technologies have been adopted in many applications, such as environmental monitoring, industrial processes, image diagnosis, and planetary exploration. The most prominent feature of laser measurement technologies is that the measurement is conducted without contact and the speed is ultrafast because of the characteristics of light. Furthermore, the precision of laser-based measurement is attractive. Up until now, various laser measurement methods have been successfully invented for a variety of measuring tasks.

In this Special Issue, papers about laser measurement techniques, especially about the current state-of-the-art methods, are welcomed; review articles are also encouraged. Potential topics include, but are not limited to, the following:    

  1. Laser sensing;
  2. Laser imaging;
  3. Laser diagnostics;
  4. Laser lidar;
  5. Laser spectroscopy;
  6. Laser sources;
  7. Laser technology.

Prof. Dr. Yufei Ma
Guest Editor

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • high sensitivity
  • high precision
  • high speed
  • real-time measurement
  • laser sources

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Published Papers (1 paper)

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Research

15 pages, 3905 KB  
Article
Integrated Methane Sensor Prototype Based on H-QEPAS Technique with a 3D-Printed Gas Chamber
by Jingze Cai, Yanjun Chen, Hanxu Ma, Shunda Qiao, Ying He, Qi Li, Tongyu Dai and Yufei Ma
Appl. Sci. 2026, 16(3), 1427; https://doi.org/10.3390/app16031427 - 30 Jan 2026
Viewed by 329
Abstract
In the paper, a heterodyne quartz-enhanced photoacoustic spectroscopy (H-QEPAS)-based integrated methane (CH4) sensor prototype is reported. The CH4 absorption line located at 1650.96 nm was selected as the target spectral line. The design features an integrated, 3D-printed gas chamber for [...] Read more.
In the paper, a heterodyne quartz-enhanced photoacoustic spectroscopy (H-QEPAS)-based integrated methane (CH4) sensor prototype is reported. The CH4 absorption line located at 1650.96 nm was selected as the target spectral line. The design features an integrated, 3D-printed gas chamber for reduced size and weight. To realize the coordinated operation of each hardware component, a control program was designed based on LabVIEW platform, enabling the adjustment of various hardware parameters. The piezoelectric signal generated by the quartz tuning fork (QTF) was amplified via a trans-impedance amplifier (TIA), acquired by a data acquisition card (DAQ), and then transmitted to a virtual lock-in amplifier (LIA) on the PC terminal for processing. The dimensions of the integrated CH4 sensor prototype are 33 cm in length, 27 cm in width, and 15 cm in height. The final test results demonstrate that the sensor prototype exhibits an excellent concentration linear response, with a detection limit of 26.72 ppm and a short detection time of approximately 4 s. Full article
(This article belongs to the Special Issue Latest Applications of Laser Measurement Technologies)
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