[1] Hodgkinson J, Ralph P T. Optical gas sensing: a review[J]. Measurement Science and Technology, 2013, 24:012004-1-59.

[2] Hanson R K. Applications of quantitative laser sensors to kinetics, propulsion and practical energy system[C]. Proceedings of the Combustion Institute, 2011, 33: 1-40.

[3] Sun R, Sur K, Jeffries J B, et al. Multi-species laser absorption sensors for in situ monitoring of syngas composition[J]. Applied Physics B, 2014, 115: 9-24.

[4] Rieker G B, Jeffries J B, Hanson R K, et al. Diode laser-based detection of combustor instabilities with application to a scramjet engine[C]. Proceedings of the Combustion Institute, 2009, 32: 831-838.

[5] Wilson G V H. Modulation broadening of NMR and ESR line shapes[J]. Journal of Applied Physics, 1963, 34: 3276-3285.

[6] Reid J, Labrie D. Second-Harmonic detection with tunable diode lasers-comparison of experiment and theory[J]. Applied Physics B, 1981, 26: 203-210.

[7] Philippe L C, Hanson R K. Laser diode wavelength-modulation spectroscopy for simultaneous measurement of temperature, pressure, and velocity in shock-heated oxygen flows[J]. Applied Optics, 1993, 32(30): 6090-6103.

[8] Henningsen J, Simonsen H. Quantitative wavelength-modulation spectroscopy without certified gas mixtures[J]. Applied Physics B, 2000, 70: 627-633.

[9] Duffin K, Mcgettrick A J, Johnstone W, et al. Tunable diode spectroscopy with wavelength modulation: a calibration-free approach to recovery of absolute gas absorption line-shapes[J]. Journal of Lightwave Technology, 2007, 25(10): 3114-3125.

[10] Mcgettrick A J, Duffin K, Johnstone W, et al. Tunable diode laser spectroscopy with wavelength modulation: a phasor decomposition method for calibration-free measurements of gas concentration and pressure[J]. Journal of Lightwave Technology, 2008, 26(4): 432-440.

[11] Li H J, Rieker G B, Liu X, et al. Extension of wavelength-modulation spectroscopy to large modulation depth for diode laser absorption measurements in high-pressure gases[J]. Applied Optics, 2006, 45:1052-1060.

[12] Rieker G B, Jeffries J B, Hanson R K, et al. Calibration-free wavelength-modulation spectroscopy for measurements of gas temperature and concentration in harsh environments[J]. Applied Optics, 2009, 48(29):5546-5560.

[13] Gamache B R, Kennedy S, Hawkins R, et al. Total internal partition sums for molecules in the terrestrial atmosphere[J]. Journal of Molecular Structure, 2000, 517: 407-425.

[14] Sun K, Chao X, Sur R, et al. Analysis of calibration-free wavelength scanned wavelength modulation spectroscopy for practical gas sensing using tunable diode lasers[J]. Measurement Science and Technology, 2013, 24: 125203.

[15] Zhou X, Jefferies J B, Hanson R K. Development of a fast temperature sensor for combustion gases using a single tunable diode laser[J]. Applied Physics B, 2005, 85: 711-722.

[16] Liu X, Jeffries J B, Hanson R K, et al. Development of a tunable diode laser sensor for measurements of gas turbine exhaust temperature[J]. Applied Physics B, 2006, 82: 469-478.