全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

Ba原子6s21S0-6s6p3P1跃迁Hanle效应实验研究

, PP. 257-264

Keywords: 光谱学,能级寿命,Hanle效应,线宽,Ba原子,原子频标

Full-Text   Cite this paper   Add to My Lib

Abstract:

Ba原子是光频标的候选者之一,对其进行有效的激光冷却与囚禁需要相关能级的寿命和跃迁几率的信息。Ba原子激发态6s6p3P1能级在激光冷却实验中很重要,通过Hanle效应实验测量了这一能级的寿命和自发辐射率,从理论和实验上研究了探测激光有限线宽和光强对Ba原子基态6s21S0与激发态6s6p3P1之间跃迁(波长791nm)的Hanle效应的荧光信号的影响。在考虑了激光线宽和光强因素后所得到的激发态6s6p3P1的能级寿命和自发辐射率与其他方法给出的结果很好符合。

References

[1]  Barber Z W, Stalnaker J E, Lemke N D, et al. Optical Lattice Induced Light Shifts in an Yb Atomic Clock [J]. Phys. Rev. Lett., 2008, 100(10):103002?
[2]  De S, Dammalapati U, Jungmann K, et al. Magneto-optical trapping of barium [J]. Phys. Rev. A., 2009, 79(4):041402?
[3]  Dzuba V A, Ginges J S M. Calculations of energy levels and lifetimes of low-lying states of barium and radium [J]. Phys. Rev. A., 2006, 73(3):032503?
[4]  Deng L Z, Yin J P. Generation of cold or ultracold atomic beams and their applications [J]. Chinese Journal of Quantum Electronics (量子电子学报), 2005, 22(1): 1-12 (in Chinese)?
[5]  Chen L, Xiong Z Y, Wang L, et al. Tapered amplified diode laser injected by distributed feedback laser [J]. Chinese Journal of Quantum Electronics (量子电子学报), 2010, 27(1): 15-20 (in Chinese)?
[6]  Dzuba V A, Flambaum V V, Ginges J S M. Calculation of parity and time invariance violation in the radium atom [J]. Phys. Rev. A, 2000, 61(6):062509?
[7]  Brust J, Gallagher A C. Excitation transfer in barium by collisions with noble gases [J]. Phys. Rev. A, 1995, 52(3):2120-2131?
[8]  Scielzo N D, Guest J R, Schulte E C, et al. Measurement of the lifetimes of the lowest 3P1 state of neutral Ba and Ra [J]. Phys. Rev. A, 2006, 73, 010501?
[9]  Laksbmi P A, Agarwal G S. Optical Hanle effect in fields of arbitrary strength and bandwith [J]. Phys. Rev. A, 1981, 23(5):2553-2562?
[10]  Avan P, Cohen-Tannoudji C. Hanle resonances for a J=0 to J=1 transition excited by a fluctuating laser beam [J]. J. Phys. B, 1977, 10(2):171-185?
[11]  Atvars A, Auzinsh M, Gazazyan E A, et al. Implementation of a double-scanning technique for studies of the Hanle effect in rubidium vapor [J]. Eur. Phys. J. D, 2007, 44(3): 411–417?
[12]  Brink G, Glassman A and Gupta R. Lifetime measurement of the (5d6p) 3D3 state of barium by dye-laser spectroscopy [J]. Opt Commun, 1980, 33(1):17-22?
[13]  Demtroder W. Laser spectroscopy : Basic concepts and instrumentation [M]. 3nd ed. Berlin : Springer, 2003. 680-689?
[14]  Kastler A. The Hanle effect and its use for the measurements of very small magnetic fields [J]. Nucl. Instrum. Methods, 1973,110:259-265?
[15]  Guo B, Guan H, Qu W C, et al. Preliminary frequency measurement of the electric quadrupole transition in a single laser-cooled Ca+ ion [J]. Front. Phys. China, 2009, 4(2): 144-154?
[16]  Qi R, Yu X L, Li Z B, Liu W M. Non-Abelian Josephson effect between two F=2 spinor Bose-Einstein condensates in double optical traps [J]. Phys. Rev. Lett, 2009, 102: 185301?
[17]  Liang Z X, Zhang Z D, Liu W M. Dynamics of a bright soliton in Bose-Einstein condensates with time-dependent atomic scattering length in an expulsive parabolic potential [J]. Phys. Rev. Lett, 2005, 94: 050402?
[18]  Andreev S V, Namozov B R, Koudinov A V, et al. Spin depolarization of holes and lineshape of the Hanle effect in semiconductor nanostructures [J]. Phys Rev B, 2009, 80: 113301?
[19]  Ji A C, Liu W M, Song J L, Zhou F. Dynamical creation of fractionalized vortices and vortex lattices [J]. Phys. Rev. Lett. 2008, 101: 010402?
[20]  Sahli A, Melliti A, Maaref M A, et al. Spin lifetime from the Hanle effect and fine structure of excitonic levels in InAlAs/AlGaAs quantum dots [J]. Phys Status Solidi B, 2007, 224:2622-2628
[21]  Hong F L, Takamoto M, Higashi R, et al. Frequency measurement of a Sr lattice clock using an SI-second-referenced optical frequency comb linked by a global positioning system (GPS) [J]. Opt. Express., 2005, 13 (14):5253-5262?
[22]  Ido T, Loftus T H, Boyd M M, et al. Precision Spectroscopy and Density- Dependent Frequency Shifts in Ultracold Sr [J]. Phys. Rev. Lett., 2005, 94(15):153001?
[23]  Marion H, Pereira D S F, Abgrall M, et al. Search for Variations of Fundamental Constants using Atomic Fountain Clocks [J]. Phys. Rev. Lett., 2003, 90(15):150801?
[24]  Blatt S, Ludlow A D, Campbell G K, et al. New Limits on Coupling of Fundamental Constants to Gravity Using 87Sr Optical Lattice Clocks [J]. Phys. Rev. Lett., 2008, 100(14):140801?
[25]  Ludlow A D, Zelevinsky T, Campbell G K, et al. Sr Lattice Clock at 1 × 10–16 Fractional Uncertainty by Remote Optical Evaluation with a Ca Clock [J]. Science, 2008, 319(5871):1805-1808?
[26]  Wilpers G, Oates C, and Hollberg L. Improved uncertainty budget for optical frequency measurements with microkelvin neutral atoms: Results for a high-stability 40Ca optical frequency standard [J]. Appl. Phys. B, 2006, 85(1):31-44?
[27]  Barber Z W, Hoyt C W, Oates C W, et al. Direct Excitation of the Forbidden Clock Transition in Neutral 174Yb Atoms Confined to an Optical Lattice [J]. Phys. Rev. Lett., 2006, 96(8):083002?

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133