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Ultracold atom photoassociation spectroscopy is significant for studying the long-range molecular potential energy structure. The signal-noise ratio of ultracold Cesium Molecule photoassociation Rovibronic Spectrum is one of the indicators as a measure of detection technology which directly affect the distinguishing ability and detection sensitivity of the spectra. We obtain an long-range ultracold cesium molecular hyperfine rovibration spectra by modulating the fluorescence spectroscopy. We find that demodulation parameters have a significant impact to the signal-noise ratio of spectra by studying the demodulation parameters such as integration time and sensitivity, which show nonlinear relation with the ratio. We achieve the optimal control of the signal-noise ratio for spectrum according to our experiment, which laid an important foundation for further studying the long-range state rovibration level of ultracold cesium molecule.
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Keywords:
- phase-lock detection /
- ultracold cesium molecule /
- MOT /
- signal-noise ratio
[1] Gan I H, Li Y M, Chan X Z 1996 Chin Phys. Lett. 13 821
[2] Jones K M, Tiesinga E, Lett P D, Julienne P S 2006 Rev. Mod. Phys. 78 483
[3] Prodan I D, Pichler M, Junker M, Hulet R G, Bohn J L 2003 Phs. Rev. Lett. 91 080402
[4] Bohn J L, Julienne P S 1996 Phs. Rev. A 54 4637
[5] Jones K M, Tiesinga E, Lett P D, Julienne P S 2006 Rev. Mod. Phys. 78 483
[6] Monroe C, Swann W, Robinson H, Wieman C 1990 Phys. Rev Lett. 65 1571
[7] Bhon J L, Julienne P S 1999 Phs. Rev. A 60 414
[8] Ma J, Wang L R, Zhao Y T, Xiao L T,Jia S T 2009 Journal of Spectroscopy 255 106
[9] Wang L R, Ma J, Ji W B, Wang G P, Xiao L T, Jia S T 2007 Laser Physics 17 1171
[10] Kraft S D, Mudrich M, Staudt M U, Lange J, Dulieu O, Wester R, Weidemuller M 2005 Phs. Rev. A 71 013417
[11] Thorsheim H R, Weiner J, Julienne P S 1987 Phs. Rev. Lett. 58 2420
[12] Zinner G, Binneweiss T, Reihle F, Tiemann E 2000 Phs. Rev. Lett. 85 2292
[13] Herschbach N, Tol P J J, Vassen W, Hogerworst W, Woestenek G, Thomsen J W, Straten P V D, Niehaus A 2000 Phs. Rev. Lett. 84 1874
[14] Mosk A P, Reynolds M W, Hijman T W, Waleaven J T M 1999 Phs. Rev. Lett. 82 307
[15] Picher M, Chen H, Stwalley 2004 J. Chem. Phys. 121 6779
[16] Plillet P, Crubellier A, Blleton A, Dulieu O, Nosbaum P, Mourach I, Masnou S F 1997 J. Phys.B 30 2801
[17] Stwally W C, Uang Y, Picher G 1978 Phs. Rev. Lett. 41 1164
[18] Wang L R, Ma J, Zhang L J, Xiao L T, Jia S T 2007 Acta Phys. Sin. 56 6373 (in Chinese) [汪丽蓉、马 杰、 张临杰、 肖连团、 贾锁堂 2007 物理学报 56 6373]
[19] Yuan Z L, Zhang C M, Zhao B C 2007 Acta Phys. Sin. 56 6413 (in Chinese) [袁志林、张淳民、赵葆常 2007 物理学报 56 6413]
[20] Jiang K J, Li K, Wang J, Zhan M S 2006 Acta Phys. Sin. 55 125 (in Chinese) [江开军、李 可、王 谨、詹明生 2006 物理学报 55 125]
[21] Jones K M, Tiesinga E, Lett P D, Julienne P S 2006 Rev. Mod. Phys. 78 483
[22] Geng T , Yan S B, Wang Y H, Yang H J, Zhang T C, Wang J M 2005 Acta Phys. Sin. 54 5104 (in Chinese) [耿 涛、闫树斌、王彦华、杨海菁、张天才、王军民 2005 物理学报 54 5104]
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[1] Gan I H, Li Y M, Chan X Z 1996 Chin Phys. Lett. 13 821
[2] Jones K M, Tiesinga E, Lett P D, Julienne P S 2006 Rev. Mod. Phys. 78 483
[3] Prodan I D, Pichler M, Junker M, Hulet R G, Bohn J L 2003 Phs. Rev. Lett. 91 080402
[4] Bohn J L, Julienne P S 1996 Phs. Rev. A 54 4637
[5] Jones K M, Tiesinga E, Lett P D, Julienne P S 2006 Rev. Mod. Phys. 78 483
[6] Monroe C, Swann W, Robinson H, Wieman C 1990 Phys. Rev Lett. 65 1571
[7] Bhon J L, Julienne P S 1999 Phs. Rev. A 60 414
[8] Ma J, Wang L R, Zhao Y T, Xiao L T,Jia S T 2009 Journal of Spectroscopy 255 106
[9] Wang L R, Ma J, Ji W B, Wang G P, Xiao L T, Jia S T 2007 Laser Physics 17 1171
[10] Kraft S D, Mudrich M, Staudt M U, Lange J, Dulieu O, Wester R, Weidemuller M 2005 Phs. Rev. A 71 013417
[11] Thorsheim H R, Weiner J, Julienne P S 1987 Phs. Rev. Lett. 58 2420
[12] Zinner G, Binneweiss T, Reihle F, Tiemann E 2000 Phs. Rev. Lett. 85 2292
[13] Herschbach N, Tol P J J, Vassen W, Hogerworst W, Woestenek G, Thomsen J W, Straten P V D, Niehaus A 2000 Phs. Rev. Lett. 84 1874
[14] Mosk A P, Reynolds M W, Hijman T W, Waleaven J T M 1999 Phs. Rev. Lett. 82 307
[15] Picher M, Chen H, Stwalley 2004 J. Chem. Phys. 121 6779
[16] Plillet P, Crubellier A, Blleton A, Dulieu O, Nosbaum P, Mourach I, Masnou S F 1997 J. Phys.B 30 2801
[17] Stwally W C, Uang Y, Picher G 1978 Phs. Rev. Lett. 41 1164
[18] Wang L R, Ma J, Zhang L J, Xiao L T, Jia S T 2007 Acta Phys. Sin. 56 6373 (in Chinese) [汪丽蓉、马 杰、 张临杰、 肖连团、 贾锁堂 2007 物理学报 56 6373]
[19] Yuan Z L, Zhang C M, Zhao B C 2007 Acta Phys. Sin. 56 6413 (in Chinese) [袁志林、张淳民、赵葆常 2007 物理学报 56 6413]
[20] Jiang K J, Li K, Wang J, Zhan M S 2006 Acta Phys. Sin. 55 125 (in Chinese) [江开军、李 可、王 谨、詹明生 2006 物理学报 55 125]
[21] Jones K M, Tiesinga E, Lett P D, Julienne P S 2006 Rev. Mod. Phys. 78 483
[22] Geng T , Yan S B, Wang Y H, Yang H J, Zhang T C, Wang J M 2005 Acta Phys. Sin. 54 5104 (in Chinese) [耿 涛、闫树斌、王彦华、杨海菁、张天才、王军民 2005 物理学报 54 5104]
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