Shunsuke A. Sato

What's New

• November 5, 2024:
  Our article, "Initial electron thermalization in metals measured by attosecond transient absorption spectroscopy" has been published from Physical Review B:
  https://doi.org/10.1103/PhysRevB.110.174301
  


• July 6, 2024:
  Our new article, "Core-level signature of long-range charge-density-wave order and short-range excitonic correlations probed by attosecond broadband spectroscopy" has been uploaded on arXiv:
  arXiv:2407.00772 [cond-mat.str-el]
  


• July 6, 2024:
  Our article, "Hot electron effect in high-order harmonic generation from graphene driven by elliptically polarized light" has been published from APL Photonics.:
  https://doi.org/10.1063/5.0212022
  


• July 6, 2024:
  Our article, "Nonlinear Current Injection in Hexagonal Boron Nitride using Linearly Polarized Light in a Deeply Off-Resonant Regime" has been published from Adv. Optical Mater.:
  https://doi.org/10.1002/adom.202400651
  


• June 10, 2024:
  Our new article, "Initial electron thermalization in metals measured by attosecond transient absorption spectroscopy" has been uploaded on arXiv:
  arXiv:2406.03567 [cond-mat.mtrl-sci]
  


• May 23, 2024:
  Our article, "Limitations of mean-field approximations in describing shift-current and injection-current in materials" has been published from Physical Review B:
  https://doi.org/10.1103/PhysRevB.109.195205
  


• Febrary 20, 2024:
  Our article, "High-Order Harmonic Generation in Solids: The Role of Intraband Transitions in Extreme Nonlinear Optics" has been published from The Journal of Physical Chemistry Letters:
  https://doi.org/10.1021/acs.jpclett.3c03415
  


• January 26, 2024:
  Our article, "Revealing ultrafast phonon mediated inter-valley scattering through transient absorption and high harmonic spectroscopies" has been published from Physical Review Research:
  https://doi.org/10.1103/PhysRevResearch.6.013069
  


• January 18, 2024:
  Our article, "Enhancement of high-order harmonic generation in graphene by mid-infrared and terahertz fields" has been published from Physical Review B:
  https://doi.org/10.1103/PhysRevB.109.045421
  


• November 15, 2023:
  Our article, "Enhancing high harmonic generation in GaAs by elliptically polarized light excitation" has been published from Physical Review B:
  https://doi.org/10.1103/PhysRevB.108.205201
  


• October 16, 2023:
  Our new article, "Limitations of mean-field approximations in describing shift-current and injection-current in materials" has been uploaded on arXiv:
  arXiv:2310.08875 [cond-mat.mtrl-sci]
  


• August 22, 2023:
  Our article, "Frequency-resolved Microscopic Current Density Analysis of Linear and Nonlinear Optical Phenomena in Solids" has been published from Journal of the Physical Society of Japan:
  https://doi.org/10.7566/JPSJ.92.094401
  


• July 26, 2023:
  Our article, "Optimizing Floquet engineering for non-equilibrium steady states with gradient-based methods" has been published from SciPost Physics:
  https://scipost.org/SciPostPhys.15.1.029
  


• July 3, 2023:
  Our new article, "Enhancement of high-order harmonic generation in graphene by mid-infrared and terahertz fields" has been uploaded on arXiv:
  arXiv:2306.17346 [cond-mat.mtrl-sci]
  


• July 3, 2023:
  Our new article, "Revealing Ultrafast Phonon Mediated Inter-Valley Scattering through Transient Absorption and High Harmonic Spectroscopies" has been uploaded on arXiv:
  arXiv:2306.16010 [cond-mat.mtrl-sci]
  


• June 21, 2023:
  Our article, "Gapless detection of broadband terahertz pulses using a metal surface in air based on field-induced second-harmonic generation" has been published from Applied Physics Letters:
  https://doi.org/10.1063/5.0153667
  


• May 11, 2023:
  Our article, "Floquet-Bloch resonances in near-petahertz electroabsorption spectroscopy of SiO₂" has been published from Physical Review B:
  https://doi.org/10.1103/PhysRevB.107.184304
  


• April 11, 2023:
  Our article, "Floquet band engineering in action" has been published from Science Bulletin:
  https://doi.org/10.1016/j.scib.2023.03.046
  


• April 7, 2023:
  Our article, "Floquet engineering with quantum optimal control theory" has been published from New J. Phys.:
  https://doi.org/10.1088/1367-2630/accb05
  


• April 5, 2023:
  Our article, "Ultrafast electron localization and screening in a transition metal dichalcogenide" has been published from PNAS:
  https://doi.org/10.1073/pnas.2221725120
  


• February 14, 2023:
  Our new article, "Frequency-resolved microscopic current density analysis of linear and nonlinear optical phenomena in solids" has been uploaded on arXiv:
  arXiv:2302.05859 [cond-mat.mtrl-sci]
  


• January 7, 2023:
  Our new article, "Floquet engineering non-equilibrium steady states" has been uploaded on arXiv:
  arXiv:2301.02004 [cond-mat.mtrl-sci]
  


• December 2, 2022:
  Our article, "Second harmonic Hall responses of insulators as a probe of Berry curvature dipole" has been published from Communications Physics:
  https://doi.org/10.1038/s42005-022-01086-9
  


• November 21, 2022:
  Our article, "Controlling Floquet states on ultrashort time scales" has been published from Nature Communications:
  https://doi.org/10.1038/s41467-022-34973-4
  


• October 12, 2022:
  Our new article, "Ultrafast electron localization and screening in a transition metal dichalcogenide" has been uploaded on arXiv:
  arXiv:2210.05465 [cond-mat.mtrl-sci]
  


• October 12, 2022:
  Our article, "Simulating Terahertz Field-Induced Ferroelectricity in Quantum Paraelectric SrTiO₃" has been published from Physical Review Letters:
  https://doi.org/10.1103/PhysRevLett.129.167401
  


• September 26, 2022:
  Our article, "Charge transfer in ultrafast isomerization of acetylene ions" has been published from Physical Review A:
  https://doi.org/10.1103/PhysRevA.106.033111
  


• September 20, 2022:
  Our article, "Floquet engineering the band structure of materials with optimal control theory" has been published from Physical Review Research:
  https://doi.org/10.1103/PhysRevResearch.4.033213
  


• August 6, 2022:
  Our article, "Time- and angle-resolved photoelectron spectroscopy of strong-field light-dressed solids: Prevalence of the adiabatic band picture" has been published from Physical Review Research:
  https://doi.org/10.1103/PhysRevResearch.4.033101
  


• August 1, 2022:
  Our article, "Terahertz-induced high-order harmonic generation and nonlinear charge transport in graphene" has been published from Physical Review B:
  https://doi.org/10.1103/PhysRevB.106.024313
  


• June 24, 2022:
  Our article, "Size-controlled quantum dots reveal the impact of intraband transitions on high-order harmonic generation in solids" has been published from Nature Physics:
  https://doi.org/10.1038/s41567-022-01639-3
  


• May 26, 2022:
  Our article, "Few-Femtosecond Dynamics of Free-Free Opacity in Optically Heated Metals" has been published from Physical Review X:
  https://doi.org/10.1103/PhysRevX.12.021045
  


• May 6, 2022:
  Our new article, "Controlling Floquet states on ultrashort time scales" has been uploaded on arXiv:
  arXiv:2205.00788 [physics.optics]
  


• May 6, 2022:
  Our new article, "Time- and angle-resolved photoelectron spectroscopy of strong-field light-dressed solids: prevalence of the adiabatic band picture" has been uploaded on arXiv:
  arXiv:2204.14157 [cond-mat.mtrl-sci]
  


• March 30, 2022:
  Our article, "Reconstruction of ultrafast exciton dynamics with a phase-retrieval algorithm" has been published from Optics Express:
  https://doi.org/10.1364/OE.451759
  


• March 16, 2022:
  Our new article, "THz-induced high-order harmonic generation and nonlinear charge transport in graphene" has been uploaded on arXiv:
  arXiv:2203.07649 [cond-mat.mes-hall]
  


• March 8, 2022:
  Our new article, "Floquet engineering the band structure of materials with optimal control theory" has been uploaded on arXiv:
  arXiv:2203.03387 [cond-mat.mes-hall]
  


• February 9, 2022:
  Our article, "First-principles calculations for transient absorption of laser-excited magnetic materials" has been published from Electronic Structure:
  https://doi.org/10.1088/2516-1075/ac52df
  


• December 22, 2021:
  Our article, "First-principles modelling for time-resolved ARPES under different pump-probe conditions" has been published from Journal of Electron Spectroscopy and Related Phenomena:
  https://doi.org/10.1016/j.elspec.2021.147152
  


• December 13, 2021:
  Our new article, "Tracing out the Berry curvature dipole and multipoles in second harmonic Hall responses of time-reversal symmetric insulators" has been uploaded on arXiv:
  arXiv:2112.05524 [cond-mat.mes-hall]
  


• December 2, 2021:
  Our article, "Two-step Brillouin zone sampling for efficient computation of electron dynamics in solids" has been published from Journal of Physics: Condensed Matter:
  https://doi.org/10.1088/1361-648X/ac3f00
  


• November 11, 2021:
  Our article, "Conditional Wave Function Theory: A Unified Treatment of Molecular Structure and Nonadiabatic Dynamics" has been published from Journal of Chemical Theory and Computation:
  https://doi.org/10.1021/acs.jctc.1c00772
  


• Augst 16, 2021:
  Our article, "Quantum paraelectric phase of SrTiO₃ from first principles" has been published from Physical Review B:
  https://doi.org/10.1103/PhysRevB.104.L060103
  


• July 28, 2021:
  Our article, "The ferroelectric photo ground state of SrTiO₃: Cavity materials engineering" has been published from PNAS:
  https://doi.org/10.1073/pnas.2105618118
  


• July 20, 2021:
  Our new article, "Reconstruction of ultrafast exciton dynamics with a phase-retrieval algorithm" has been uploaded on arXiv:
  arXiv:2107.08202 [physics.optics]
  


• July 5, 2021:
  Our new article, "Conditional wavefunction theory: a unified treatment of molecular structure and nonadiabatic dynamics" has been uploaded on arXiv:
  arXiv:2107.01094 [physics.chem-ph]
  


• June 17, 2021:
  Our article, "Nonlinear electric conductivity and THz-induced charge transport in graphene" has been published from New Journal of Physics:
  https://doi.org/10.1088/1367-2630/ac03d0
  


• June 9, 2021:
  Our new article, "Simulating terahertz field-induced transient ferroeletricity in quantum paraelectric SrTiO₃" has been uploaded on arXiv:
  arXiv:2106.03957 [cond-mat.mtrl-sci]
  


• June 4, 2021:
  Our article, "Survival of Floquet–Bloch States in the Presence of Scattering" has been published from Nano Letters:
  https://doi.org/10.1021/acs.nanolett.1c00801
  


• April 6, 2021:
  Our article, "Simulating Vibronic Spectra without Born-Oppenheimer Surfaces" has been published from Journal of Physical Chemistry Letters:
  https://doi.org/10.1021/acs.jpclett.1c00073
  


• March 30, 2021:
  Our article, "First-principles calculations for attosecond electron dynamics in solids" has been published from Computational Materials Science:
  https://doi.org/10.1016/j.commatsci.2020.110274
  


• March 23, 2021:
  Our new article, "Nonlinear electric conductivity and light-induced charge transport in graphene" has been uploaded on arXiv:
  arXiv:2103.11969 [cond-mat.mes-hall]
  


• March 13, 2021:
  Our article, "Single and double charge transfer in the Ne²⁺+He collision within time-dependent density-functional theory" has been published from Physical Review A:
  https://doi.org/10.1103/PhysRevA.103.032816
  


• February 26, 2021:
  Our new article, "On the survival of Floquet-Bloch states in the presence of scattering" has been uploaded on arXiv:
  arXiv:2102.12798 [cond-mat.mtrl-sci]
  


• February 15, 2021:
  Our article, "Unravelling the intertwined atomic and bulk nature of localised excitons by attosecond spectroscopy" has been published from Nature Communications:
  https://doi.org/10.1038/s41467-021-21345-7
  Please, also have a look at our press release!


• January 29, 2021:
  Our article, "High-order harmonic generation in graphene: Nonlinear coupling of intraband and interband transitions" has been published from Physical Review B:
  https://doi.org/10.1103/PhysRevB.103.L041408
  


• January 28, 2021:
  Our new article, "The Ferroelectric Photo-Groundstate of SrTiO₃: Cavity Materials Engineering" has been uploaded on arXiv:
  arXiv:2101.11313 [cond-mat.mtrl-sci]
  


• January 11, 2021:
  Our new article, "Simulating Vibronic Spectra without Born-Oppenheimer Surfaces" has been uploaded on arXiv:
  arXiv:2101.03007 [physics.chem-ph]
  


• January 8, 2021:
  Our new article, "The quantum paraelectric phase of SrTiO₃ from first principles" has been uploaded on arXiv:
  arXiv:2101.02291 [cond-mat.mtrl-sci]
  


• December 23, 2020:
  Our article, "Floquet dynamics in light-driven solids" has been published from Phys. Rev. Research:
  https://doi.org/10.1103/PhysRevResearch.2.043408
  


• December 1, 2020:
  Our article, "Dynamical amplification of electric polarization through nonlinear phononics in 2D SnTe" has been published from npj Computational Materials:
  https://doi.org/10.1038/s41524-020-00449-6
  


• November 25, 2020:
  I have received "University of Tsukuba Young Faculty Award"
  [Link (Japanese)].


• November 4, 2020:
  Our new article, "First-principles calculations for attosecond electron dynamics in solids" has been uploaded on arXiv:
  arXiv:2011.01677 [cond-mat.mtrl-sci]
  


• October 27, 2020:
  Our new article, "Nonlinear phononics in 2D SnTe: a ferroelectric material with phonon dynamical amplification of electric polarization" has been uploaded on arXiv:
  arXiv:2010.13646 [cond-mat.mtrl-sci]
  


• October 22, 2020:
  Our article, "Floquet states in dissipative open quantum systems" has been published from Journal of Physics B: Atomic, Molecular and Optical Physics:
  https://doi.org/10.1088/1361-6455/abb127
  


• October 14, 2020:
  Our new article, "High-order harmonic generation in graphene: nonlinear coupling of intra and interband transitions" has been uploaded on arXiv:
  arXiv:2010.06275 [cond-mat.mtrl-sci]
  


• September 22, 2020:
  Our article, "Direct measurement of electron-phonon coupling with time-resolved ARPES" has been published from Physical Revew Letters:
  https://doi.org/10.1103/PhysRevLett.125.136401
  


• August 31, 2020:
  Our article, "Role of electron scattering on the high-order harmonic generation from solids" has been published from Phys. Rev. Research:
  https://doi.org/10.1103/PhysRevResearch.2.033333
  


• July 31, 2020:
  Our article, "Role of virtual band population for high harmonic generation in solids" has been published from Physical Review B:
  https://doi.org/10.1103/PhysRevB.102.041125
  


• June 30, 2020:
  Our new article, "Unravelling the intertwined atomic and bulk nature of localised excitons by attosecond spectroscopy" has been uploaded on arXiv:
  arXiv:2006.16008 [physics.optics]
  


• June 14, 2020:
  Our new article, "Room Temperature Terahertz Electroabsorption Modulation by Excitons in Monolayer Transition Metal Dichalcogenides" has been uploaded on arXiv:
  arXiv:2006.04786 [cond-mat.mes-hall]
  


• June 14, 2020:
  Our new article, "Floquet dynamics in light-driven solids" has been uploaded on arXiv:
  arXiv:2005.10824 [cond-mat.mes-hall]
  


• April 24, 2020:
  Our new article, "Direct measurement of electron-phonon coupling with time-resolved ARPES" has been uploaded on arXiv:
  arXiv:2004.11082 [cond-mat.mtrl-sci]
  


• April 21, 2020:
  Our new article, "Role of electron scattering on the high-order harmonic generation from solids" has been uploaded on arXiv:
  arXiv:2004.09049 [physics.optics]
  


• April 5, 2020:
  Our article, "Octopus, a computational framework for exploring light-driven phenomena and quantum dynamics in extended and finite systems" has been published from J. Chem. Phys.:
  https://doi.org/10.1063/1.5142502
  


• January 29, 2020:
  Our article, "Attosecond timing of the dynamical Franz-Keldysh effect" has been published from J. Phys. Photonics:
  https://doi.org/10.1088/2515-7647/ab70cb
  


• January 15, 2020:
  Our article, "Exact exchange-correlation potential of effectively interacting Kohn-Sham systems" has been published from Physical Review A:
  https://doi.org/10.1103/PhysRevA.101.012510
  


• December 22, 2019:
  Our new article, "Octopus, a computational framework for exploring light-driven phenomena and quantum dynamics in extended and finite systems" has been uploaded on arXiv:
  arXiv:1912.07921 [physics.comp-ph]
  


• December 9, 2019:
  Our new article, "Floquet states in dissipative open quantum systems" has been uploaded on arXiv:
  arXiv:1912.03176 [cond-mat.mes-hall]
  


• November 11, 2019:
  I have been selected as a winner of "Young Scientist Award of the Physical Society of Japan, 2020" [Link].
  I'll give an award lecture at the Annual Meeting of the Physical Society of Japan, Nagoya University, March 2020.


• October 11, 2019:
  Our article, "Photovoltaic Effect from the Viewpoint of Time-reversal Symmetry" has been published from Journal of the Physical Society of Japan:
  https://doi.org/10.7566/JPSJ.88.115003
  


• August 16, 2019:
  Our new article, "Photovoltaic effect from the viewpoint of time-reversal symmetry" has been uploaded on arXiv:
  arXiv:1908.05492 [cond-mat.mes-hall]
  


• August 14, 2019:
  Our article, "Light-induced anomalous Hall effect in massless Dirac fermion systems and topological insulators with dissipation" has been published from New Journal of Physics:
  https://doi.org/10.1088/1367-2630/ab3acf
  


• August 5, 2019:
  Our article, "Attosecond screening dynamics mediated by electron localization in transition metals" has been published from Nature Physics:
  https://doi.org/10.1038/s41567-019-0602-9
  Please, also have a look at our press release!


• July 19, 2019:
  Our article, "Charge Density Wave Melting in One-Dimensional Wires with Femtosecond Subgap Excitation" has been published from Physical Revew Letters:
  https://doi.org/10.1103/PhysRevLett.123.036405


• July 2, 2019:
  Our new article, "Exact exchange-correlation potential of effectively interacting Kohn-Sham systems" has been uploaded on arXiv:
  arXiv:1907.00183 [physics.chem-ph]


• June 10, 2019:
  Our article, "Microscopic theory for the light-induced anomalous Hall effect in graphene" has been published from Physical Revew B:
  https://doi.org/10.1103/PhysRevB.99.214302


• May 31, 2019:
  Our new article, "Light-induced anomalous Hall effect in massless Dirac fermion systems and topological insulators with dissipation" has been uploaded on arXiv:
  arXiv:1905.12981 [cond-mat.mes-hall]


• May 16, 2019:
  I started working at Center for Computational Sciences, University of Tsukuba, Japan!


• May 14, 2019:
  Our new article, "Microscopic theory for the light-induced anomalous Hall effect in graphene" has been uploaded on arXiv:
  arXiv:1905.04508 [cond-mat.mes-hall]


• May 5, 2019:
  New website opened!