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Ishikawa KL, Prince KC, Ueda K. Control of Ion-Photoelectron Entanglement and Coherence Via Rabi Oscillations. J Phys Chem A 2023; 127:10638-10646. [PMID: 38084843 DOI: 10.1021/acs.jpca.3c06781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
We report a theoretical investigation of photoionization by a pair of coherent, ultrashort, fundamental and second-harmonic extreme-ultraviolet pulses, where the photon energies are selected to yield the same photoelectron energy for ionization of two different subshells. This choice implies that the fundamental energy is equal to the difference in energy of the ionic states and that they are therefore coupled by the fundamental photon. By deriving analytical expressions using the essential-states approach, we show that this Rabi coupling creates coherence between the two photoelectron wave packets, which would otherwise be incoherent. We analyze how the coupling is affected by the parameters, such as relative phase, pulse width, delay between the two pulses, Rabi coupling strength, and photoelectron energy. Our discussion mostly considers Ne 2p and 2s photoionization, but it is generally valid for many other quantum systems where photoionization from two different shells is observed.
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Affiliation(s)
- Kenichi L Ishikawa
- Department of Nuclear Engineering and Management, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Photon Science Center, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Research Institute for Photon Science and Laser Technology, The University of Tokyo, 7-3-1 Hongo, Tokyo 113-0033, Japan
- Institute for Attosecond Laser Facility, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Agueny H. Quantum control and characterization of ultrafast ionization with orthogonal two-color laser pulses. Sci Rep 2020; 10:239. [PMID: 31937810 PMCID: PMC6959349 DOI: 10.1038/s41598-019-57125-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 12/02/2019] [Indexed: 11/23/2022] Open
Abstract
We study ultrafast ionization dynamics using orthogonally polarized two-color (OTC) laser pulses involving the resonant "first plus second" (ω + 2ω) scheme. The scheme is illustrated by numerical simulations of the time-dependent Schrödinger equation and recording the photoelectron momentum distribution. On the basis of the simulations of this resonant ionization, we identify signatures of the dynamic Autler-Townes effect and dynamic interference, in which their characterization is not possible in the spectral domain. Taking advantage of the OTC scheme we show that these dynamical effects, which occur at the same time scale, can be characterized in momentum space by controlling the spatial quantum interference. In particular, we show that with the use of this control scheme, one can tailor the properties of the control pulse to lead to enhancement of the ionization rate through the Autler-Townes effect without affecting the dynamic interference. This enhancement is shown to result from constructive interferences between partial photoelectron waves having opposite-parity, and found to manifest by symmetry-breaking of the momentum distribution. The scenario is investigated for a prototype of a hydrogen atom and is broadly applicable to other systems. Our findings may have applications for photoelectron interferometers to control the electron dynamics in time and space, and for accurate temporal characterization of attosecond pulses.
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Affiliation(s)
- Hicham Agueny
- Department of Physics and Technology, University of Bergen, Allegt. 55, N-5007, Bergen, Norway.
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Di Fraia M, Plekan O, Callegari C, Prince KC, Giannessi L, Allaria E, Badano L, De Ninno G, Trovò M, Diviacco B, Gauthier D, Mirian N, Penco G, Ribič PR, Spampinati S, Spezzani C, Gaio G, Orimo Y, Tugs O, Sato T, Ishikawa KL, Carpeggiani PA, Csizmadia T, Füle M, Sansone G, Kumar Maroju P, D'Elia A, Mazza T, Meyer M, Gryzlova EV, Grum-Grzhimailo AN, You D, Ueda K. Complete Characterization of Phase and Amplitude of Bichromatic Extreme Ultraviolet Light. PHYSICAL REVIEW LETTERS 2019; 123:213904. [PMID: 31809175 DOI: 10.1103/physrevlett.123.213904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Indexed: 06/10/2023]
Abstract
Intense, mutually coherent beams of multiharmonic extreme ultraviolet light can now be created using seeded free-electron lasers, and the phase difference between harmonics can be tuned with attosecond accuracy. However, the absolute value of the phase is generally not determined. We present a method for determining precisely the absolute phase relationship of a fundamental wavelength and its second harmonic, as well as the amplitude ratio. Only a few easily calculated theoretical parameters are required in addition to the experimental data.
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Affiliation(s)
- Michele Di Fraia
- Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy
| | - Oksana Plekan
- Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy
| | - Carlo Callegari
- Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy
| | - Kevin C Prince
- Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy
- Centre for Translational Atomaterials, Swinburne University of Technology, Melbourne 3122, Australia
| | - Luca Giannessi
- Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy
- INFN-Laboratori Nazionali di Frascati, 00044 Frascati, Rome, Italy
| | - Enrico Allaria
- Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy
| | - Laura Badano
- Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy
| | - Giovanni De Ninno
- Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy
- Laboratory of Quantum Optics, University of Nova Gorica, 5001 Nova Gorica, Slovenia
| | - Mauro Trovò
- Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy
| | - Bruno Diviacco
- Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy
| | - David Gauthier
- Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy
| | - Najmeh Mirian
- Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy
| | - Giuseppe Penco
- Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy
| | | | - Simone Spampinati
- Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy
| | - Carlo Spezzani
- Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy
| | - Giulio Gaio
- Elettra-Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy
| | - Yuki Orimo
- Department of Nuclear Engineering and Management, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Oyunbileg Tugs
- Department of Nuclear Engineering and Management, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Takeshi Sato
- Department of Nuclear Engineering and Management, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Photon Science Center, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Research Institute for Photon Science and Laser Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 Japan
| | - Kenichi L Ishikawa
- Department of Nuclear Engineering and Management, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Photon Science Center, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Research Institute for Photon Science and Laser Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 Japan
| | | | | | - Miklós Füle
- ELI-ALPS, ELI-HU Non-Profit Ltd., H-6720 Szeged, Hungary
| | - Giuseppe Sansone
- Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, 79106 Freiburg, Germany
| | - Praveen Kumar Maroju
- Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, 79106 Freiburg, Germany
| | - Alessandro D'Elia
- University of Trieste, Department of Physics, 34127 Trieste, Italy
- IOM-CNR, Laboratorio Nazionale TASC, 34149 Basovizza, Trieste, Italy
| | | | | | - Elena V Gryzlova
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Alexei N Grum-Grzhimailo
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Daehyun You
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
| | - Kiyoshi Ueda
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
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Khokhlova MA, Cooper B, Ueda K, Prince KC, Kolorenč P, Ivanov MY, Averbukh V. Molecular Auger Interferometry. PHYSICAL REVIEW LETTERS 2019; 122:233001. [PMID: 31298870 DOI: 10.1103/physrevlett.122.233001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Indexed: 06/10/2023]
Abstract
We introduce and present a theory of interferometric measurement of a normal Auger decay lifetime in molecules. Molecular Auger interferometry is based on the coherent phase control of Auger dynamics in a two-color (ω/2ω) laser field. We show that, in contrast to atoms, in oriented molecules of certain point groups the relative ω/2ω phase modulates the total ionization yield. A simple analytical formula is derived for the extraction of the lifetimes of Auger-active states from a molecular Auger interferogram, circumventing the need in either high-resolution or attosecond spectroscopy. We demonstrate the principle of the interferometric Auger lifetime measurement using inner-valence decay in CH_{3}F.
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Affiliation(s)
- M A Khokhlova
- Blackett Laboratory, Imperial College London, London SW7 2AZ, United Kingdom
| | - B Cooper
- Department of Physics and Astronomy, University College London, London WC1E 6BT, United Kingdom
| | - K Ueda
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - K C Prince
- Elettra-Sincrotrone Trieste SCpA, 34149 Basovizza-Trieste, Italy
- Molecular Model Discovery Laboratory, Swinburne University of Technology, 3122 Hawthorn, Australia
| | - P Kolorenč
- Charles University, Institute of Theoretical Physics, V Holešovičkách 2, 180 00 Prague, Czech Republic
| | - M Yu Ivanov
- Blackett Laboratory, Imperial College London, London SW7 2AZ, United Kingdom
- Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, Max-Born-Strasse 2A, Berlin D-12489, Germany
| | - V Averbukh
- Blackett Laboratory, Imperial College London, London SW7 2AZ, United Kingdom
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