[1] Ye J, Ma L S, Hall J L. Journal of the Optical Society of America B-Optical Physics, 1998, 15(1): 6.
[2] Ma L S, Ye J, Dube P, et al. Journal of the Optical Society of America B-Optical Physics, 1999, 16(12): 2255.
[3] Ye J, Hall J L, Experimental Methods in the Physical Sciences, 2003, 40(3): 83.
[4] Foltynowicz A, Schmidt F M, Ma W, et al. Applied Physics B, 2008, 92(3): 313.
[5] Drever R W P, Hall J L, Kowalski F V, et al. Applied Physics B, 1983, 31(2): 97.
[6] Hollberg L, Gianfrani L, Fox R W. Journal of the Optical Society of America B, 1999, 16(12): 2247.
[7] Taubman M S, Williams R M, Myers T L, et al. Sub-Doppler NICE-OHMS Spectroscopy at 8.5 Microns Using a Quantum Cascade Laser. in Lasers and Electro-Optics. 2002. Long Beach, CA, USA, USA: IEEE.
[8] Silander I, Hausmaninger T, Ma W, et al. Optics Letters, 2015, 40(4): 439.
[9] Foltynowicz A, Wang J, Ehlers P, et al. Optics Express, 2010, 18(18): 18580.
[10] Schmidt F M, Foltynowicz A, Axner O, et al. Optics Express, 2007, 15(17): 10822.
[11] Foltynowicz A, Ma W, Schmidt F M, et al. Journal of the Optical Society of America B, 2008, 25(7): 1156.
[12] Zhao G, Hausmaninger T, Ma W, et al. Optics Letters, 2018, 43(4): 715.
[13] Zhao G, Hausmaninger T, Ma W, et al. Optics Letters, 2017, 42(16): 3109.
[14] Leeuwen N J V, Wilson A C. Journal of the Optical Society of America B, 2004, 21(10): 1713.
[15] Curtis E A, Barwood G P, Huang G, et al. Journal of the Optical Society of America B, 2017, 34(5): 950.
[16] Ehlers P, Silander I, Axner O. Journal of the Optical Society of America B, 2014, 31(9): 2051.
[17] Olivero J J, Longbothum R L. Journal of Quantitative Spectroscopy & Radiative Transfer, 1977, 17(2): 233.
[18] Ma W, Foltynowicz A, Axner O. Journal of the Optical Society of America B, 2008, 25(27): 1144.
