228 citations · 472 across the 18 of their papers we have counts for
18 papers
Occupation Dynamics of Floquet-Volkov States and Spectral Sum Rule
Xuanxi Cai, Changhua Bao, Benshu Fan +9
Time-periodic light fields can dress electronic states in quantum materials, forming Floquet states whose dynamic occupation determines transient material properties. Here by using…
Observation of Floquet-induced gap in graphene
Fei Wang, Xuanxi Cai, Xiao Tang +8
Floquet engineering provides a powerful pathway for creating non-equilibrium phases of matter with tailored electronic structures and properties through time-periodic driving. As t…
Floquet engineering enabled by charge density wave transition
Fei Wang, Xuanxi Cai, Teng Xiao +10
Floquet engineering has emerged as a powerful approach for dynamically tailoring the electronic structures of quantum materials through time-periodic light fields generated by ultr…
High harmonic generation light source with polarization selectivity and sub-100-m beam size for time- and angle-resolved photoemission spectroscopy
Haoyuan Zhong, Xuanxi Cai, Changhua Bao +9
High-quality ultrafast light sources are critical for developing advanced time- and angle-resolved photoemission spectroscopy (TrARPES). While the application of high harmonic gene…
Light-field dressing of transient photo-excited states above
Fei Wang, Wanying Chen, Changhua Bao +4
Time-periodic light-field provides an emerging pathway for dynamically engineering quantum materials by forming hybrid states between photons and Bloch electrons. So far, experimen…
Floquet-Volkov interference in a semiconductor
Changhua Bao, Haoyuan Zhong, Benshu Fan +9
Intense light-field can dress both Bloch electrons inside crystals and photo-emitted free electrons in the vacuum, dubbed as Floquet and Volkov states respectively. These quantum s…
Light-induced ultrafast glide-mirror symmetry breaking in black phosphorus
Changhua Bao, Fei Wang, Haoyuan Zhong +6
Symmetry breaking plays an important role in fields of physics, ranging from particle physics to condensed matter physics. In solid-state materials, phase transitions are deeply li…
Manipulating the symmetry of photon-dressed electronic states
Changhua Bao, Michael Schüler, Teng Xiao +11
Strong light-matter interaction provides opportunities for tailoring the physical properties of quantum materials on the ultrafast timescale by forming photon-dressed electronic st…
Ultrafast Carrier Relaxation Dynamics in a Nodal-Line Semimetal PtSn
Tianyun Lin, Yongkang Ju, Haoyuan Zhong +7
Topological Dirac nodal-line semimetals host topologically nontrivial electronic structure with nodal-line crossings around the Fermi level, which could affect the photocarrier dyn…
Hidden charge density wave induced shadow bands and ultrafast dynamics of CuTe investigated using time-resolved ARPES
Haoyuan Zhong, Changhua Bao, Tianyun Lin +4
Revealing the fine electronic structure is critical for understanding the underlying physics of low-dimensional materials. Angle-resolved photoemission spectroscopy (ARPES) is a po…
Floquet engineering of black phosphorus upon below-gap pumping
Shaohua Zhou, Changhua Bao, Benshu Fan +6
Time-periodic light field can dress the electronic states and lead to light-induced emergent properties in quantum materials. While below-gap pumping is regarded favorable for Floq…
Revealing the two-dimensional electronic structure and anisotropic superconductivity in a natural van der Waals superlattice (PbSe)NbSe
Haoyuan Zhong, Hongyun Zhang, Haoxiong Zhang +12
Van der Waals superlattices are important for tailoring the electronic structures and properties of layered materials. Here we report the superconducting properties and electronic…
Distinguishing and controlling Mottness in 1T-TaS by ultrafast light
Changhua Bao, Haoyuan Zhong, Fei Wang +5
Distinguishing and controlling the extent of Mottness is important for materials where the energy scales of the onsite Coulomb repulsion U and the bandwidth W are comparable. Here…
Pseudospin-selective Floquet band engineering in black phosphorus
Shaohua Zhou, Changhua Bao, Benshu Fan +10
Time-periodic light field has emerged as a control knob for manipulating quantum states in solid-state materials, cold atoms and photonic systems via hybridization with photon-dres…
A newly-designed femtosecond KBeBOF device with pulse duration down to 55 fs for time- and angle-resolved photoemission spectroscopy
Haoyuan Zhong, Changhua Bao, Tianyun Lin +2
Developing a widely tunable vacuum ultraviolet (VUV) source with sub-100 femtoseconds (fs) pulse duration is critical for ultrafast pump-probe techniques such as time- and angle-re…
Population inversion and Dirac fermion cooling in 3D Dirac semimetal CdAs
Changhua Bao, Qian Li, Sheng Xu +8
Revealing the ultrafast dynamics of three-dimensional (3D) Dirac fermions upon photoexcitation is critical for both fundamental science and device applications. So far, how the coo…
Ultrafast time- and angle-resolved photoemission spectroscopy with widely tunable probe photon energy of 5.3-7.0 eV for investigating dynamics of three-dimensional materials
Changhua Bao, Haoyuan Zhong, Shaohua Zhou +3
Time- and angle-resolved photoemission spectroscopy (TrARPES) is a powerful technique for capturing the ultrafast dynamics of charge carriers and revealing photo-induced phase tran…
Light-Tunable Surface State and Hybridization Gap in Magnetic Topological Insulator MnBiTe
Haoyuan Zhong, Changhua Bao, Huan Wang +6
MnBiTe is an intrinsic ferromagnetic (FM) topological insulator with different complex surface terminations. Resolving the electronic structures of different termination…