scholarly journals Multidimensional spectroscopy with attosecond extreme ultraviolet and shaped near-infrared pulses

2018 ◽  
Vol 4 (9) ◽  
pp. eaau3783 ◽  
Author(s):  
Hugo J. B. Marroux ◽  
Ashley P. Fidler ◽  
Daniel M. Neumark ◽  
Stephen R. Leone
Keyword(s):  
Excited States ◽  
Near Infrared ◽  
Extreme Ultraviolet ◽  
Four Wave Mixing ◽  
High Dimensionality ◽  
Wave Mixing ◽  
Multidimensional Spectroscopy ◽  
Electronic Dynamics ◽  
Single State ◽  
Signal Field

Dynamics following excitation with attosecond extreme ultraviolet (XUV) pulses arise from enormous numbers of accessible excited states, complicating the retrieval of state-specific time evolutions. We develop attosecond XUV multidimensional spectroscopy here to separate interfering pathways on a near-infrared (NIR) energy axis, retrieving single state dynamics in argon atoms in a two-dimensional (2D) XUV-NIR spectrum. In this experiment, we measure four-wave mixing signal arising from the interaction of XUV attosecond pulses centered around 15 eV with two few-cycle NIR pulses. The 2D spectrum is created by measuring the emitted XUV signal field spectrum while applying narrowband amplitude and phase modulations to one of the NIR pulses. Application of such a technique to systems of high dimensionality will provide for the observation of state-resolved pure electronic dynamics, in direct analogy to phenomena unraveled by multidimensional spectroscopies at optical frequencies.

scholarly journals Near-resonant four-wave mixing of attosecond extreme-ultraviolet pulses with near-infrared pulses in neon: Detection of electronic coherences

2016 ◽  
Vol 94 (2) ◽  
Author(s):  
Wei Cao ◽  
Erika R. Warrick ◽  
Ashley Fidler ◽  
Stephen R. Leone ◽  
Daniel M. Neumark
Keyword(s):  
Near Infrared ◽  
Extreme Ultraviolet ◽  
Four Wave Mixing ◽  
Wave Mixing

scholarly journals Autoionization Dynamics of (2P1/2)ns/d States in Krypton Probed by Noncollinear Wave Mixing with Attosecond Extreme Ultraviolet and Few-Cycle Near Infrared Pulses

2019 ◽  
Author(s):  
Ashley Fidler ◽  
Hugo Marroux ◽  
Erika Warrick ◽  
Etienne Bloch ◽  
Wei Cao ◽  
...  
Keyword(s):  
Near Infrared ◽  
Extreme Ultraviolet ◽  
Rydberg States ◽  
Quantum Beat ◽  
Quantum Beats ◽  
Wave Mixing ◽  
State Dependent ◽  
Simultaneous Evaluation ◽  
Electronic Dynamics

The autoionization dynamics of the (<sup>2</sup>P<sub>1/2</sub>)ns/d Rydberg states in krypton are investigated using wave-mixing signals generated with subfemtosecond XUV pulses and noncollinear, few-cycle NIR pulses. Despite quantum beat oscillations from the XUV-induced coherence, these wave-mixing spectra allow for the simultaneous evaluation of autoionization lifetimes from a series of Rydberg states. Experimentally measured lifetimes for the wave-mixing signals emitting from the (<sup>2</sup>P<sub>1/2</sub>)6d/8s, 7d/9s, and 8d/10s resonances compare favorably with lifetimes for the (<sup>2</sup>P<sub>1/2</sub>)6d, 7d, and 8d Rydberg states determined from spectral linewidths. Analysis of the quantum beats reveals that the enhancement of wave-mixing pathways leads to reporter state-dependent decays in the wave-mixing signals. The results demonstrate the promise of wave-mixing spectroscopies with subfemtosecond XUV pulses to provide valuable insights into processes governed by electronic dynamics.<br>

scholarly journals Autoionization Dynamics of (2P1/2)ns/d States in Krypton Probed by Noncollinear Wave Mixing with Attosecond Extreme Ultraviolet and Few-Cycle Near Infrared Pulses

2019 ◽  
Author(s):  
Ashley Fidler ◽  
Hugo Marroux ◽  
Erika Warrick ◽  
Etienne Bloch ◽  
Wei Cao ◽  
...  
Keyword(s):  
Near Infrared ◽  
Extreme Ultraviolet ◽  
Rydberg States ◽  
Quantum Beat ◽  
Quantum Beats ◽  
Wave Mixing ◽  
State Dependent ◽  
Simultaneous Evaluation ◽  
Electronic Dynamics

The autoionization dynamics of the (<sup>2</sup>P<sub>1/2</sub>)ns/d Rydberg states in krypton are investigated using wave-mixing signals generated with subfemtosecond XUV pulses and noncollinear, few-cycle NIR pulses. Despite quantum beat oscillations from the XUV-induced coherence, these wave-mixing spectra allow for the simultaneous evaluation of autoionization lifetimes from a series of Rydberg states. Experimentally measured lifetimes for the wave-mixing signals emitting from the (<sup>2</sup>P<sub>1/2</sub>)6d/8s, 7d/9s, and 8d/10s resonances compare favorably with lifetimes for the (<sup>2</sup>P<sub>1/2</sub>)6d, 7d, and 8d Rydberg states determined from spectral linewidths. Analysis of the quantum beats reveals that the enhancement of wave-mixing pathways leads to reporter state-dependent decays in the wave-mixing signals. The results demonstrate the promise of wave-mixing spectroscopies with subfemtosecond XUV pulses to provide valuable insights into processes governed by electronic dynamics.<br>

scholarly journals Phase-matched four-wave mixing in the extreme ultraviolet region

2018 ◽  
Vol 124 (1) ◽  
pp. 015901 ◽  
Author(s):  
Khoa Anh Tran ◽  
Khuong Ba Dinh ◽  
Peter Hannaford ◽  
Lap Van Dao
Keyword(s):  
Extreme Ultraviolet ◽  
Four Wave Mixing ◽  
Ultraviolet Region ◽  
Wave Mixing

Coherent near-infrared light generation based on self-seeded parametric four-wave mixing in Rb vapor

2021 ◽  
Vol 18 (5) ◽  
pp. 055207
Author(s):  
Xuewen Wang ◽  
Jinpeng Yuan ◽  
Lirong Wang ◽  
Liantuan Xiao ◽  
Suotang Jia
Keyword(s):  
Near Infrared ◽  
Four Wave Mixing ◽  
Infrared Light ◽  
Wave Mixing ◽  
Near Infrared Light ◽  
Rb Vapor ◽  
Light Generation

Dynamics of free electron wave packets with coherent extreme ultraviolet four-wave mixing fields

Optik ◽  
2021 ◽  
Vol 225 ◽  
pp. 165833
Author(s):  
Khoa Anh Tran ◽  
Khuong Ba Dinh ◽  
Thong Huy Chau ◽  
Peter Hannaford ◽  
Lap Van Dao
Keyword(s):  
Free Electron ◽  
Extreme Ultraviolet ◽  
Wave Packets ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Electron Wave

scholarly journals Autoionization dynamics of (2P1/2)ns/d states in krypton probed by noncollinear wave mixing with attosecond extreme ultraviolet and few-cycle near infrared pulses

2019 ◽  
Vol 151 (11) ◽  
pp. 114305 ◽  
Author(s):  
Ashley P. Fidler ◽  
Hugo J. B. Marroux ◽  
Erika R. Warrick ◽  
Etienne Bloch ◽  
Wei Cao ◽  
...  
Keyword(s):  
Near Infrared ◽  
Extreme Ultraviolet ◽  
Wave Mixing

scholarly journals Four-wave-mixing between the upper excited states in a ladder-type atomic configuration

2012 ◽  
Vol 20 (6) ◽  
pp. 6204 ◽  
Author(s):  
Utsab Khadka ◽  
Huaibin Zheng ◽  
Min Xiao
Keyword(s):  
Excited States ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Atomic Configuration
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