使用外腔式半導體雷射(波長為852nm)，利用頻率調制轉移光譜法（modulation transfer spectroscopy，簡稱MTS）探測銫原子超精細光譜6 2S1/2->6 2P3/2 (D2 line)，利用所得到的譜線訊號作為誤差訊號來穩頻。
此實驗有兩個目的，第一，是為了量測此852nm 6 2S1/2->6 2P3/2超精細光譜與822nm 6 2S1/2->8 2S1/2雙光子躍
遷超精細光譜之躍遷頻率差，第二，是為了與實驗室的飛秒脈衝光梳子雷射進行『同調族群捕捉法』(coherent population trapping，簡稱CPT)實驗。

. S. Chu, “The manipulation of neutral particles,” Rev. Mod. Phys. 70, 685 (1998).
2. D. S. Weiss, B. C. Young, and S. Chu, “Precision measurement of the photon recoil of an atom using atomic interferometry,” Phys. Rev. Lett. 70, 2706 (1993).
3. A. Peters, K.Y. Chung, S. Chu, “High-precision gravity measurements using atom interferometry,” Metrologia 38, 25 (2001).
4. A. Peters, K. Y. Chung, and S. Chu, “Measurement of gravitational acceleration by dropping atoms,” Nature (London) 400, 849 (1999).
5. V. Gerginov, C. E. Tanner, S. A. Diddams, A. Bartels, and L. Hollberg, “High-resolution spectroscopy with a femtosecond laser frequency comb,” Opt. Lett. 30, 1734 (2005).
6. Th. Udem, J. Reichert, and T. W. Hansch, “Absolute optical frequency measurement of the cesium D2 line,” Phys. Rev. A 62, 031801 (2005).
7. E. B. Kim, S. E. Park, C. Y. Park, W.-K. Lee, D. H. Yu, H. S. Lee, and H. Cho, “Absolute frequency measurement of F=4 →F’=5 line of cesium D2 in an optical clock configuration with amplified optical comb,” IEEE Trans. Instru. Measu. 56, 448 (2007).
8. G. D. Rovera, G. Santarelli, A. Clairon, “A laser-diode system stabilized on the cesium D2 line,” Rev.Sci. Instrum., 65, 1502 (1994) .
9. C. Y. Cheng, C. -M. Wu, G. B. Liao, and W. –Y. Cheng,“Cesium 6S1/2→8S1/2 two-photon-transition-stabilized 822.5nm diode laser,”Opt. lett. 32, 563 (2007).
0. G. Hagel, C. Nesi, L. Jozefowski, C. Schwob, F. Nez, F. Biraben, “Accurate measurement of the frequency of the 6S–8S two-photon transitions in cesium,” Opt. Comm.160, 1 (1999) .
1. P. Fendel, S. D. Bergeson, Th. Udem, and T. W. Hänsch, “Two-photon frequency comb spectroscopy of the 6s–8s transition in cesium,” Opt. Lett. 32, 710 (2007) .
2. M. Fleischhauer and M. D. Lukin,“Dark-state polaritons in electromagnetically induced transparency,”Phys. Rev. Lett. 84, 5094 (2000).
3. V. A. Satenkov, Y. V. Rostovtsev, C. Y. Ye, G. R. Welch, O. Kohcharovskaya, and M. O. Sully, “Electromagnetically induced transparency in rubidium vapor prepared by a comb of short optical pulses,” Phys. Rev. A 71, 063804 (2005).
4. Jon H. Shirley, “Modulation transfer processes in optical heterodyne saturation spectroscopy,”Opt. Lett. 7, 537 (1982).
5. J. J. Snyder, R. K. Raj, D. Bloch, and M. Ducloy,“High-sensitivity nonlinear spectroscopy using a frequency-offset pump,”Opt. Lett.5, 163(1980).
6. G. Camy, Ch. J. Borde, and M. Ducloy, “Heterodyne saturation spectroscopy through frequency modulation of the saturating beam,”Opt. Comm. 41, 325 (1982).
7. E. Jaatinen, “Theoretical determination of maximum signal levels obtainable with modulation transfer spectroscopy,” Opt. Comm.120, 91 (1995) .
8. Nobuhiko Ito, “Doppler-free modulation transfer spectroscopy of rubidium 52S1/2 – 62P1/2 transitions using a frequency-doubled diode laser blue-light source,” Rev.Sci. Instrum., 71, 2655 (2000) .
9. M. D. Lukin, “Colloquium: Trapping and manipulating photon states in atomic ensembles,” Rev. Mod. Phys., 75, 457 (2003).
20. Daniel A. Steck, “Cesium D line data,” (2003).Unpublished, available on-line at http://george.ph.utexas.edu/~dsteck/alkalidata/.
2 . C. J. Sansonetti, K. L. Andrew, and J. Verges, “Polarization, penetration, and exchange effects in the hydrogenlike nf and ng terms of cesium,”J. Opt. Soc. Am. 71, 423 (1980).
22. P. Tsekeris and R. Gupta,“Measurement of hyperfine structure of the 82S1/2 and 92S1/2 states of rubidium, and 12 2S1/2 state of cesium by stepwise dye-laser spectroscopy,”Phys. Rev. A 11, 455 (1975).
23. H. Kleiman, “Interferometric measurements of cesium Ι,” J. Opt. Soc. Am. 52, 441 (1961).
24. K.-H. Weber and C. J. Sansonetti, “Accurate energies of nS, nP, nD, nF, and nG levels of neutral cesium,” Phys. Rev. A 35, 4650 (1987).
25. C.-J. Lorenzen, K.-H. Weber, and K. Niemax, “Energies of the n2S1/2 and n2D3/2,5/2 states of Cs,”Opt. comm.. 33, 271 (1980).
26. D. Popescu, C. B. Collins, B. W. Johnson, and I. Popescu, “Multiphoton excitation and ionization of atomic cesium with a tunable dye laser,” Phys. Rev. A 9, 1182 (1974).
27. E. Arimondo, M. Inguscio, and P. Violino, “Experimental determinations of the hyperfine structure in the alkali atoms,” Rev. Mod. Phys., 49, 31 (1977).
28. C. E. Tanner and C. Wieman, “Precision measurement of the hyperfine structure of the 133Cs 6P3/2 state,” Phys. Rev. A 38, 1616 (1988).
29. V. Gerginov , C. E. Tanner, S. Diddams, A. Bartels, and L. Hollberg, “Optical frequency measurements of 6s2S1/2- 6p2P3/2 transition in a 133Cs atomic beam using a femtosecond laser frequency comb,” Phys. Rev. A 70, 042505 (2004).
30. K. Sasaki, K. Sugiyama, V. Barychev, and A.Onae, “Two-photon spectroscopy of the 6S-8S transitions in cesium using an extended-cavity diode laser,” Jpn. J. Appl. Phys.39, 5310 (2000).
3 . W. Demtröder, “Laser Spectroscopy,” Springer (1998).
32. Robert W. Boyd, ‘Nonlinear Optics’ Academic Press (San Diego, CA, USA, 1992).
33. G. C. Bjorklund, “Frequency-modulation spectroscopy: a new method for measuring weak absorptions and dispersions,” Opt. Lett. 5, 15 (1980) .
34. J. L. Hall, L. Hollberg, T. Baer, and H. G. Robinson, “Optical heterodyne saturation spectroscopy,” Appl. Phys. Lett. 39, 680 (1981).
35. R. K. Raj, D. Bloch, J. J. Snyder, G. Camy, and M.Ducloy, “High-frequency optically heterodyned saturation spectroscopy via resonant degenerate four-wave mixing,” Phys. Rev. Lett. 44, 1251 (1980).
36. R. L. Abrams and R. C. Lind, “Degenerate four-wave mixing in absorbing media,” Opt. Lett. 2, 94 (1977).
37. A. Schenzle, R. G. DeVoe, and Richard G. Brewer, “Phase-modulation laser spectroscopy,” Phys. Rev. A 25, 2606 (1981).
38. 李昭芳, “除都普勒效應調頻與調轉銫原子光譜及穩頻雷射,”國立交通大學光電工程研究所碩士論文（1998）。
39. “Model SR830 DSP lock-in amplifier ,”Stanford Research Systems,3-1.