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Dephasing of Strong-Field-Driven Excitonic Autler-Townes Doublets Revealed by Time- and Spectrum-Resolved Quantum-Path Interferometry.
Liu, Yaxin; Zhu, Bingbing; Jiang, Shicheng; Huang, Shenyang; Luo, Mingyan; Zhang, Sheng; Yan, Hugen; Zhang, Yuanbo; Lu, Ruifeng; Tao, Zhensheng.
Affiliation
  • Liu Y; State Key Laboratory of Surface Physics and Key Laboratory of Micro and Nano Photonic Structures (MOE), Department of Physics, <a href="https://ror.org/013q1eq08">Fudan University</a>, Shanghai 200433, People's Republic of China.
  • Zhu B; State Key Laboratory of Surface Physics and Key Laboratory of Micro and Nano Photonic Structures (MOE), Department of Physics, <a href="https://ror.org/013q1eq08">Fudan University</a>, Shanghai 200433, People's Republic of China.
  • Jiang S; State Key Laboratory of Precision Spectroscopy, <a href="https://ror.org/02n96ep67">East China Normal University</a>, Shanghai 200062, People's Republic of China.
  • Huang S; State Key Laboratory of Surface Physics and Key Laboratory of Micro and Nano Photonic Structures (MOE), Department of Physics, <a href="https://ror.org/013q1eq08">Fudan University</a>, Shanghai 200433, People's Republic of China.
  • Luo M; Institute of Optoelectronics, <a href="https://ror.org/013q1eq08">Fudan University</a>, Shanghai 200433, People's Republic of China.
  • Zhang S; State Key Laboratory of Surface Physics and Key Laboratory of Micro and Nano Photonic Structures (MOE), Department of Physics, <a href="https://ror.org/013q1eq08">Fudan University</a>, Shanghai 200433, People's Republic of China.
  • Yan H; State Key Laboratory of Surface Physics and Key Laboratory of Micro and Nano Photonic Structures (MOE), Department of Physics, <a href="https://ror.org/013q1eq08">Fudan University</a>, Shanghai 200433, People's Republic of China.
  • Zhang Y; State Key Laboratory of Surface Physics and Key Laboratory of Micro and Nano Photonic Structures (MOE), Department of Physics, <a href="https://ror.org/013q1eq08">Fudan University</a>, Shanghai 200433, People's Republic of China.
  • Lu R; State Key Laboratory of Surface Physics and Key Laboratory of Micro and Nano Photonic Structures (MOE), Department of Physics, <a href="https://ror.org/013q1eq08">Fudan University</a>, Shanghai 200433, People's Republic of China.
  • Tao Z; Shanghai Qi Zhi Institute, Shanghai 200232, People's Republic of China.
Phys Rev Lett ; 133(2): 026901, 2024 Jul 12.
Article in En | MEDLINE | ID: mdl-39073979
ABSTRACT
Understanding dephasing mechanisms of strong-field-driven excitons in condensed matter is essential for their applications in quantum-state manipulation and ultrafast optical modulations. However, experimental access to exciton dephasing under strong-field conditions is challenging. In this study, using time- and spectrum-resolved quantum-path interferometry, we investigate the dephasing mechanisms of terahertz-driven excitonic Autler-Townes doublets in MoS_{2}. Our results reveal a dramatic increase in the dephasing rate beyond a threshold field strength, indicating exciton dissociation as the primary dephasing mechanism. Furthermore, we demonstrate nonperturbative high-order sideband generation in a regime where the driving fields are insufficient to dissociate excitons.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2024 Type: Article
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2024 Type: Article