强激光场中的原子和分子物理
王兵  研究员
联系地址:北京市海淀区中关村南三街八号
                  中国科学院物理研究所光物理实验室 L04组 
                  邮编:100190
电话:010-82649017 
电子邮箱:wbb@aphy.iphy.ac.cn
主要研究方向:

1. 原子和分子在强激光场中的激发、电离及光辐射等动力学过程,包括高次谐波产生、高阶阈值上电离及多电子非序列电离等过程。
2. 阿秒脉冲的产生和应用。
3. 利用超短激光脉冲探测分子结构及操控分子电离和解离等动力学过程。
4. 高频自由电子激光与物质相互作用。
过去的主要工作及获得的成果:

(1)发展强场频域理论,建立多电子原子在强激光场中的非序列双电离频域理论。首次得到量子力学框架下的电子碰撞激发非序列电离公式。
(2)利用原子超精细计算方法,处理多电子原子和分子在强激光场中的动力学过程。考察原子激发过程中的激光脉冲载波相位效应(Carrier-envelope phase effect),证明相邻跃迁路径的量子相干是造成激发态CEP效应的原因。提出利用原子能级结构特点探测低频长脉冲激光CEP方案。
(3)提出利用高阶ATI谱探测分子结构的电荷分布效应。解释实验上探测复杂分子结构的角分辩ATI谱特点。
(4)提出利用阿秒脉冲及原子高里德堡态实现提高高次谐波产生的方案。发现利用超短脉冲产生的高次谐波谱可以探测电离电子波包的瞬间结构;并证明可以利用谐波谱直接探测里德堡态电子密度空间分布.
(5)利用外场调控超短强激光场中原子非序列电离过程,首次提出'激光辅助碰撞电离'新机制,并解释实验上离子动量分布结果。

研究生培养及招收情况:

出站博士后1名;博士毕业生1名;联合培养博士毕业生1名;硕士毕业生1名。
在读博士研究生1名,在读联合培养博士研究生1名;在读硕士研究生2名。

拟每年招收研究生1~2名。
中国科学院物理研究所
光物理重点实验室L04组
           太赫兹和超快光谱学
     
Selected publications:

[43] Xi Zhao, Yujun Yang, Xueshen Liu and Bingbing Wang, Carrier envelope phase effect of long duration pulse in low frequency region, Chin. Phys. Lett. 31, 043202 (2014).
[42] XiaoLei Hao and Jing Chen, WeiDong Li, Bingbing Wang, Xiaodong Wang, W. Becker, Quantum Effects in Double Ionization of Argon below the Threshold Intensity, Phys. Rev. Lett. 112, 073002 (2014).
[41] Kui Zhang, Jing Chen, Panming Fu, Zong-Chao Yan, and Bingbing Wang,
Terracelike structure in the above-threshold-ionization spectrum of an atom in an IR+XUV two-color laser field, Phys. Rev. A, 88, 043435 (2013).
[40] S.-S. Wei, S.-Y. Li, F.-M. Guo*, and Y.-J. Yang*, and B. Wang*, Investigation of the dynamic stabilization of ionization for an atom irradiated by the high frequency laser pulses using the Bohmian trajectory scheme, Phys. Rev. A, 87, 063418 (2013).
[39] X. Zhao, J. Chen, P. Fu, X. Liu, Z.-C. Yan, and B. Wang*, Carrier envelope phase effect in a long laser pulse with tens of optical cycles, Phys. Rev. A, 87, 043411 (2013).
[38] Z. Zhai, D. Peng, X. Zhao, J. Chen, F. Guo, Y. Yang, P. Fu, Z.-C. Yan and B. Wang*, CEP effect on bound-bound transition in high frequency region, Phys. Rev. A, 86, 043432 (2012).
[37] J.-G. Chen, R. Wang, Z. Zhai, J. Chen, P. Fu, B. Wang*, Frequency-selected enhancement of high-order-harmonic generation by interference of degenerate Rydberg states in a few-cycle laser pulse, Phys. Rev. A, 86, 033417 (2012).
[36] B. Wang*, Y. Guo, J. Chen, Z.-C. Yan and P. Fu, Frequency-domain theory of nonsequential double ionization in intense laser fields based on nonperturbative QED, Phys. Rev. A, 85, 023402 (2012).
[35] H. Teng, C. Yun, X. He, W. Zhang, L. Wang, M. Zhan, B. Wang and Z. Wei*, Optics Express 19, 17408 (2011).
[34] Z. Zhai, Q. Zhu, J. Chen, Z.-C. Yan, P. Fu and B. Wang*, High-order harmonic generation by a Rydberg atom in an ultrashort low-frequency laser pulse, Phys. Rev. A, 83, 043409 (2011).
[33] H. Li, J. Chen, H. Jiang, P. Fu, J. Liu, Q. Gong, Z.-C. Yan and B. Wang*, Resonance enhancement of nonsequential double ionization by a magnetic field, Phys. Rev. A, 83,013408 (2011).
[32] D. Peng, B. Wu, P. Fu, B. Wang*, J. Gong and Z.-C. Yan, Sensitive frequency dependence of the carrier-envelope phase effect on bound-bound transitions: An interference perspective, Phys. Rev. A 82, 053407 (2010).
[31] Z. Zhai, J. Chen, Z.-C. Yan, P. Fu and B. Wang*, Directly Probing Rydberg atomic wavefunction by high-order harmonic generation in an intense few-cycle laser pulse, Phys. Rev. A 82,043422 (2010).
[30] B. Wang*, Y. Guo*, B. Zhang, Z. Zhao, Z. -C. Yan and P. Fu, Charge distribution effect on imaging molecular structure by high-order above threshold ionization, Phys. Rev. A 82, 043402 (2010).
[29] H. Kang, W. Quan, Y. Wang, Z. Lin, M. Wu, H. Liu, X. Liu*, B. Wang*, H. J. Liu, Y. Q. Gu, X. Y. Jia, J. Liu, J. Chen*, Y. Cheng, Structure effects in angle-resolved high-order above-threshold ionization of molecules, Phys. Rev. Lett. 104, 203001 (2010). (cited 18)
[28] Y. Guo P. Fu, Z. Yan, J. Gong and B. Wang*, Imaging the geometrical structure of the H2+ molecular ion by high-order above threshold ionization in an intense laser field, Phys. Rev. A 80, 063408 (2009).  Also in arXiv: 0905.4316
Selected by PRA on its web cover 2009-12
This also appears in Virtual Journal of ultrafast science-2010-1
[27] J. Niu, R. Wang, B. Wang, L-A Wu and P. Fu, Six-wave mixing spectroscopy in a Doppler-broadened cascade four-level system, J. Phys. B 42 175505(2009)
[26] H. Li, J. Chen, H. Jiang, J. Liu, P. Fu, Q. Gong, Z.-C. Yan and B. Wang*, Intensity dependence of non-sequential double ionization of helium in a few-cycle laser pulse, J. Phys. B, 42, 125601 (2009). Also in arXiv: 0901.2607
[25] H. Li, J. Chen, H. Jiang, P. Fu, J. Liu, Q. Gong, Z.-C. Yan and B. Wang*, Carrier-envelope phase dependence of non-sequential double ionization in few-cycle pulses, Optics Express 16, 20562-20570 (2008). (cited 10)
[24] B. Wang, J. Chen, J. Liu, Z-C Yan, and P. Fu, Attosecond pulse-controlled high-order harmonic generation in an ultrashort laser field, Phys. Rev. A 78, 023413 (2008).
This also appears in Virtual Journal of ultrafast science-2008-9
[23]  H. Li, B. Wang*, J. Chen, H. Jiang, X. Li, J. Liu, Q. Gong, Z.-C. Yan and P. Fu, Effects of a static-electric field on non-sequential double ionization, Phys. Rev. A 76, 033405 (2007).
[22] B. Wang, L. Gao, X. Li, D. Guo and P. Fu*,  Frequency-domain theory of high-order above-threshold ionization based on nonperturbative quantum electrodynamics, Phys. Rev. A 75, 063419 (2007).
[21] B. Wang, P. Fu, J. Liu, and B. Wu, Self-trapping of Bose-Einstein condensates in optical lattices, Phys. Rev. A 74,063610 (2006). (cited 30)
[20] B. Wang, T. Cheng, X. Li, P. Fu, S. Chen and J. Liu, Pulse-duration dependence of high-order harmonic generation with coherent superposition state, Phys. Rev. A 72, 063412 (2005). (cited 25)
[19] P. Fu, B. Wang, X. Li, and L. Gao, Interrelation between high-order harmonic generation and above-threshold ionization, Phys. Rev. A 64, 063401 (2001). (cited 16)
[18] B. Wang, X. Li, and P. Fu, Extension of the high-order-harmonic-generation cutoff frequency by two-color excitation, Phys. Rev. A 62, 063816 (2000). (cited 10)
[17] B. Wang, X. Li, and P. Fu, Polarization effects in high-harmonic generation in the presence of static-electric field; Phys. Rev. A 59, 2894 (1999). (cited 29)
[16] B. Wang, X. Li and P. Fu, The effects of static electric field on high-order harmonic generation; J. Phys. B 31, 1961 (1998) .(cited 48)
[15] Y. Guo, P. Fu and B. Wang*, High-order above threshold ionization of H2+ in intense laser field, Chin. Phys. Lett. 26, 034204 (2009)
[14] H. Li, J. Chen, H. Jiang, P. Fu, J. Liu, Q. Gong, Z.-C. Yan and B. Wang*, Measure the carrier-envelope phase and intensity of a few-cycle pulse by non-sequential double ionization, Chin. Phys. Lett., 26, 104207 (2009)
[13]李洪云,王兵兵*, 蒋红兵,陈京,李晓峰,刘杰,龚旗煌,傅盘铭, 静电场对强激光场非序列双电子电离的影响, <<物理学报>> 57, 124 (2008).( ACTA PHYSICA SINICA 57, 124 (2008) ) .
[12] B. Wang, X. Li, P. Fu, J. Chen, and J. Liu, Coulomb potential recapture effect in above-barrier ionization in laser pulses, Chin. Phys. Lett. 23, 2729 (2006).
[11] B. Wang, J. Chen, J. Liu, X. Li, and P. Fu, Carrier envelope phase controlled high-order harmonic generation in ultrashort laser pulse, Chin. Phys. Lett. 22, 2237 (2005).
[10] 余晓光, 王兵兵, 李晓峰 和 傅盘铭, 高阶阈值上电离的量子电动力学理论, "物理学报" 54, 3542 (2005).  
[9] B. Wang, T. Cheng, X. Li, P. Fu, High-harmonic generation by initial coherent states in a short laser pulse, Chin. Phys. Lett. 21,1727 (2004). (cited 15)
[8] X. Li, L. Gao, B.Wang, P. Fu , D. Guo, R. Freeman, Spin-other-orbit effect in two-mode multiphoton ionization, Chin. Phys. Lett. 19, 36(2002).
[7] B. Wang, X. Li, L. Gao, P. Fu, D. Guo, R. Freeman, Quantum electrodynamics basis of classical-field high-harmonic generation theory, Chin. Phys. Lett. 18, 1196 (2001) .
[6] B. Wang, X. Li , L. Gao, P. Fu, D. Guo, R. Freeman,  Connection between high-harmonic generation and above-threshold ionization, Chin. Phys. Lett. 18 1199 (2001) . (cited 10)
[5] B. Wang, X. Li and P. Fu, Enhanced harmonic generation by bichromatic laser fields, Chin. Phys. Lett. 18, 60 (2001)
[4] B. Wang, X. Li and P. Fu, 'Effect of a static electric field on high-order harmonic generation in a polarized laser field', Chin. Phys. Lett. 16(1999)723.
[3] B. Wang, X. Li and P. Fu, 'High-order harmonic generation in the presence of static electric field', Chin. Phys. Lett. 15(1998) 195.
[2] B. Wang, Q. Zhu and S. Pan, 'Variability of multiphoton detachment rate versus laser intensity', Chin. Phys. Lett., 13(1996) 355.
[1] Q. Zhu, B. Wang and S. Pan, 'Structures in spectrum of multiphoton detachment rates of negative ions', Acta. Phys. Sin. (Ocerseas Edition), 5(1996)809.

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