Journal Publications

  1. Edward M. D. Fisher, Stylianos-Alexios Tsekenis, Yunjie Yang, A. Chighine, Chang Liu, et al, “A Custom, High-Channel Count Data Acquisition System for Chemical Species Tomography of Aero-Jet Engine Exhaust Plumes”, IEEE Transactions on Instrumentation and Measurement, 2019. (In press) 

  2. Oleg Aseev, Béla Tuzson, Herbert Looser, Philipp Scheidegger, Chang Liu, Carina Morstein, Bernhard Niederhauser, and Lukas Emmenegger, “High-precision ethanol measurement by mid-IR laser absorption spectroscopy for metrological applications”, Optics Express, vol. 27, issue. 4, pp. 5314-5325, 2019.

  3. Qianwei Qu, Zhang Cao, Lijun Xu, Chang Liu, Liuyong Chang, and Hugh McCann, “Reconstruction of two-dimensional velocity distribution in scramjet by laser absorption spectroscopy tomography”, Applied Optics, vol. 58, no.1, pp. 205-212, 2019. (Editor's Pick)

  4. Chang Liu, Stylianos A. Tsekenis, Nick Polydorides, and Hugh McCann, “Towards customized spatial resolution in TDLAS tomography”, IEEE Sensors Journal, vol. 19, issue. 5, pp. 1748 – 1755, 2019.

  5. Chang Liu, Lijun Xu, “Laser absorption spectroscopy for combustion diagnosis in reactive flows: a review”, Applied Spectroscopy Reviews, vol. 54, no. 1, pp. 1-44, 2019

  6. Chang Liu, Béla Tuzson, Philipp Scheidegger, Herbert Looser, Bernhard Bereiter, Manuel Graf, Morten Hundt, Oleg Aseev, Deran Maas, Lukas Emmenegger, “Laser driving and data processing concept for mobile trace gas sensing: design and implementation”, Review of Scientific Instruments, vol. 89, no. 6, 065107, 2018.

  7. Morten Hundt, Béla Tuzson, Oleg Aseev, Chang Liu, Philipp Scheidegger, Herbert Looser, Filippos Kapsalidis, Mehran Shahmohammadi, Jérôme Faist, Lukas Emmenegger, “Multi-species trace gas sensing with dual-wavelength QCLs”, Applied Physics B: Lasers and Optics, vol. 124, no. 6, pp. 108, 2018. 

  8. Chang Liu, Zhang Cao, Yuzhen Lin, Lijun Xu, and Hugh McCann, “On-line cross-sectional monitoring of a swirling flame using TDLAS tomography”, IEEE Transactions on Instrumentation and Measurement, vol. 67, no. 6, pp. 1338-1348, 2018.

  9. Chang Liu, Zhang Cao, Fangyan Li, Yuzhen Lin, and Lijun Xu, “Flame monitoring of a model swirl injector using one-dimensional tunable diode laser absorption spectroscopy tomography”, Measurement Science and Technology, vol. 28, no. 5, pp. 054002, 2017.

  10. Lijun Xu, Chang Liu, Wenyang Jing, Zhang Cao, Xin Xue and Yuzhen Lin, “Tunable diode laser absorption spectroscopy-based tomography system for on-line monitoring of two-dimensional distributions of temperature and H2O mole fraction”, Review of Scientific Instruments, vol. 87, no. 1, pp. 013101, 2016. 

  11. Chang Liu, Lijun Xu, Jianliang Chen, Zhang Cao, Yuzhen Lin, and Weiwei Cai, “Development of a fan-beam TDLAS-based tomographic sensor for rapid imaging of temperature and gas concentration”, Optics Express, vol. 23, no. 17, pp. 22494-22511, 2015. 

  12. Chang Liu, Lijun Xu, Fangyan Li, Zhang Cao, Stylianos A. Tsekenis, and Hugh McCann, “Resolution-doubled one-dimensional wavelength modulation spectroscopy tomography for flame flatness validation of a flat flame burner”, Applied Physics B: Lasers and Optics, vol. 120, no. 3, pp. 407-416, 2015. 

  13. Lijun Xu, Chang Liu, Deyan Zheng, Zhang Cao, and Weiwei Cai, “Digital signal processor-based high-precision on-line Voigt lineshape fitting for direct absorption spectroscopy”, Review of Scientific Instruments, vol. 85, no. 12, pp. 123108, 2014. 

  14. Chang Liu, Lijun Xu, Zhang Cao, and Hugh McCann, “Reconstruction of axisymmetric temperature and gas concentration distributions by combining fan-beam TDLAS with onion-peeling deconvolution”, IEEE Transactions on Instrumentation and Measurement, vol. 63, no. 12, pp. 3067-3075, 2014. 

  15. Chang Liu, Lijun Xu, and Zhang Cao “Measurement of nonuniform temperature and concentration distributions by combining line-of-sight tunable diode laser absorption spectroscopy with regularization methods”, Applied Optics, vol. 52, issue. 20, pp. 4827-4842, 2013. 

  16. Lijun Xu, Chang Liu, Zhang Cao, and Xiaomin Li, “Particle size influence on effective permittivity of particle-gas mixture with particle clusters”, Particuology, vol. 11, issue. 2, pp. 216-224, 2013. 

Conference Publications

  1. Badrudin Stanicki, Chang Liu, Manuel Graf, Béla Tuzson, Philipp Scheidegger, Herbert Looser, and Lukas Emmenegger, “A compact QCL absorption spectrometer for mobile, high-precision methane measurements aboard drones”, 2018 Field Laser Applications in Industry and Research (FLAIR 2018), Assisi, Italy, September 10-14, 2018.

  2. Chang Liu,  Lijun Xu, Zhang Cao, and Yuzhen Lin, “Reconstruction of two-dimensional temperature distribution in swirling flames using TDLAS-based tomography”, 2017 IEEE International Instrumentation and Measurement Technology Conference (I2MTC 2017), Torino, Italy, May 22-25, 2017.

  3. Chang Liu,  Lijun Xu, Zhang Cao, Fangyan Li, and Yuzhen Lin, “Reconstruction of temperature distribution for swirling flames using one-dimensional TDLAS tomography”, 2016 IEEE International Conference on Imaging Systems and Techniques (IST 2016), Crete Island, Greece, pp. 346-349, October 4-6, 2016.

  4. Chang Liu, Lijun Xu, Zhang Cao, and Fangyan Li, “One-dimensional tomography of axisymmetric temperature distribution with limited TDLAS data by using three-point Abel deconvolution”, 2014 IEEE International Conference on Imaging Systems and Techniques (IST 2014), Santorini Island, Greece, pp. 432-435, October 14-17, 2014. 

  5. Chang Liu, Lijun Xu, and Zhang Cao, “Measurement of axisymmetric temperature distributions using single view fan-beam TDLAS tomography”, 2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC 2013), Minneapolis, MN, United states, pp. 876-879, May 6-9, 2013. 

  6. Chang Liu´╝îLijun Xu, Zhang Cao and Zheng Qian, “Simulation on measuring of nonuniform temperature distribution based on line-of-sight TDLAS by using Tikhonov regularization method”, the 8th IEEE International Symposium on Instrumentation and Control Technology (ISICT), London, United kingdom, pp. 92-95, July 11-13, 2012. 

  7. Chang Liu, Lijun Xu, Zhang Cao and Yuanhong Yang, “Fan-beam TDLAS tomography for gas concentration distribution with limited data”. 2012 IEEE International Conference on Imaging Systems and Techniques (IST 2012), Manchester, United Kingdom, pp. 117-120, July 16-17, 2012.

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