Highlights of Laser Science (DLS) Talks @ APS 2024 March Meeting
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TABLE 1: Highlights of Laser Science (DLS) Talks @ APS 2024 March Meeting
| Paper | Author(s) | |
|---|---|---|
| 1 | Novel Excited States in 2D Van Der Waals Structures and Moiré Superlattices Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: The nature of many of these phenomena remains to be fully understood. Here, we present results on the photophysics of these systems based on an ab initio interacting Green’s function approach. |
Steven Louie; |
| 2 | Division of Laser Science Invited Symposium: New Development in Understanding and Controlling Excited States in Quantum MaterialsKeshav DaniExcitons in Momentum Space Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will discuss the application of time-resolved photoemission techniques to access the momentum coordinate of excitons in 2D semiconductors, thereby providing us with the formation pathways of momentum-forbidden dark excitons [1], an image of the electron around the hole in the exciton [2], the observation of the long-predicted anomalous dispersion of the exciton-bound electron [2], the momentum distribution of the exciton-bound hole [3], the confinement of the interlayer exciton in a moiré cell [3], the impact of excitons in the dense limit [4], and the dynamics of the spin-dark excitons [5]. |
Keshav Dani; |
| 3 | Controlling Quantum Materials with Time-periodic Drive Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will present our recent experimental progress on the Floquet engineering of two-dimensional materials using time- and angle-resolved photoemission spectroscopy (TrARPES). |
Shuyun Zhou; |
| 4 | Terahertz Field Induced Metastable Magnetization in A Van Der Waals Antiferromagnet Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we use intense terahertz pulses to induce a metastable magnetization with a remarkably long lifetime of over 2.5 milliseconds in a van der Waals antiferromagnet, FePS 3. |
Nuh Gedik ; Batyr Ilyas ; Alexander von Hoegen ; Angel Rubio ; Tianchuang Luo ; Emil Vinas Boström ; Zhuquan Zhang ; Keith Nelson ; Jaena Park ; Junghyun Kim ; Je-Geun Park; |
| 5 | Lightwave Electronics in Quantum Materials – from Floquet Band Engineering to Attoclocking Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: By clocking electron-hole recollisions with attosecond precision, we can proceed beyond the single-particle picture and directly capture how many-body correlations affect the motion of Bloch electrons. |
Rupert Huber ; Mackillo Kira ; Ulrich Hofer; |
| 6 | Ultrafast Dynamics in Quantum Magnets Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this talk, I will discuss a few non-thermal mechanisms for photoinduced coherent magnon dynamics motivated by recent experiments. |
Mengxing Ye; |
| 7 | Pump Induced New Polaritons in Ultrafast Experiments Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We show that after the phonon is intensely excited, the collective mode spectra of the material is qualitatively changed due to the phenomenon of parametric resonance. |
Tsan Huang ; Zhiyuan Sun; |
| 8 | Direct Investigation of Ultrafast Charge Density Wave (CDW) Dynamics in Kagome Metal, Through Time-resolved X-ray Scattering Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Conventionally, Peierls distortion model with nested Fermi surface and soften phonon mode provides a fundamental picture to describe the CDW phase transition with the structural instability driven by strong electron-phonon coupling. |
Seung-Phil Heo ; Heemin Lee ; EUNYOUNG PARK ; Sung Yun Lee ; JUNHA HWANG ; BYUNGJUNE LEE ; Choongjae Won ; Hoyoung Jang ; Dong-bin Shin ; Jae-Hoon Park ; CHANGYONG SONG; |
| 9 | Direct Observation of Photoinduced Ultrafast Melting of Metallic Glass Nanoparticles Using XFEL Single-pulse Imaging Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We present the nanoscale imaging results that visualize ultrafast melting in metallic glasses, which promote in-depth understanding of structural deformation accompanied during the melting (glass) transition. |
Sinwoo Kim ; EUNYOUNG PARK ; JUNHA HWANG ; Sung Yun Lee ; JAEYONG SHIN ; Heemin Lee ; Seung-Phil Heo ; Daewoong Nam ; Sangsoo Kim ; Min Seok Kim ; Intae Eom ; Do Young Noh ; CHANGYONG SONG; |
| 10 | Ultrafast Dynamics of A Photo-doped Narrow-gap Semiconductor of 3D Kane Fermion Characteristics Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we focus on investigating the 3D Kane fermions in the narrow-gap semiconductor Hg 1-xCd xTe. |
Yi Chan ; Fu Deng ; Xiaoyue ZHOU ; Lujun Huang ; Wei Bai ; Jingdi Zhang; |
| 11 | Optically Controlled Fluorescence of Floquet Moiré Materials Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this work, we study the drive-controlled optical emission spectrum of TBG driven by a continuous-wave, UV-visible frequency laser. |
Christopher Yang ; Iliya Esin ; Cyprian Lewandowski ; Gil Refael; |
| 12 | Ultrafast Terahertz Dynamics of The Photo-induced Structural Change in A Type-II Weyl Semimetal Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we present findings from ultrafast terahertz dynamic study of a Td-WTe2 thin film, driven into the transient state by intense near-IR laser pulses. |
Xiaoyue ZHOU ; Fu Deng ; Yi Chan ; Shulei Li ; Jingdi Zhang; |
| 13 | Ultrafast Deflection of The Electron Beam and Light-induced Acoustic Waves in Ferroelectric NbOI2 Investigated with Ultrafast Electron Diffraction Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, the NbOI 2 samples were excited with a femtosecond UV pulse, and then the transient non-thermal states of the samples were probed by a femtosecond electron pulse in an ultrafast transmission electron diffraction geometry. |
Yibo Wang ; Md Sazzad Hossain ; Tianlin Li ; Yanwei Xiong ; Shireen Adenwalla ; Alexander Sinitskii ; Xia Hong ; Martin Centurion; |
| 14 | Addressing Artifacts in X-ray Photon Correlation Spectroscopy (XPCS) Data Analysis Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: These artifacts manifest in the dynamics as shoulders, inflated values, and unphysical upturns in calculated intensity-intensity autocorrelation functions. Our work utilizes XPCS data from LESCO at BNL’s CHX beamline as a case study, where we have developed a methodology to identify and eliminate these artifacts. |
Aidan Israelski ; Joshua Turner ; Ryan Tumbleson ; Alexander Petsch ; Alexander Petsch ; Sugata Chowdhury ; Cheng Peng ; Alana Okullo ; Lingjia Shen; |
| 15 | Giant Generation of Polarization-Entangled Photons in Metal Organic Frameworks Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: On the other hand, metal organic-frameworks (MOFs) crystals have been highlighted as possible candidates for nonlinear optics, due to their high nonlinear response values and covalent coordination bonds [2]. To analyze this crsytals we use a multi-scale methodology to study spontaneous parametric down-conversion (SPDC) of visible light using MOFs[1]. |
Simón Paiva ; Rubén Fritz ; Sanoj Raj ; Yamil Colón ; Felipe Herrera; |
| 16 | HHG from The Instantaneous Electronic Response of The Kerr Media on Its Pathway to Create Attoseconds and Zeptosecond Pulses and on The Road to 10 Nm XUV Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: A fundamental electromagnetic (EM) theoretical model is introduced as an alternative to the time-dependent Schrodinger equation with a semi-classical approach. |
Shah Faisal Mazhar ; Robert Alfano; |
| 17 | Revealing Surface Soft Phonons in Incipient Ferroelectrics Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Understanding surface dynamics in quantum materials is crucial for advancing quantum technology. However, the detection of surface vibrational modes at meV energies remains … |
Zhaodong Chu ; Junyi Yang ; Yan Li ; Kyle Hwangbo ; Qi Zhang ; Stephan Hruszkewycz ; Dillon Fong ; Xiaodong Xu ; Michael Norman ; Anand Battacharya ; Haidan Wen; |
| 18 | Polarized Raman Study of The Phonon Dynamics and Structural Transition of Kagome Lattice Semiconductor Nb3Cl8* Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we present an investigation of Nb 8Cl 8’s phonon modes in bulk and few layers at high and low temperatures via polarized Raman spectroscopy. |
Dylan Jeff ; Favian Gonzalez ; Kamal Harrison ; Yuzhou Zhao ; Tharindu Warnakulasooriya Fernando ; Sabin Regmi ; Zhaoyu Liu ; Humberto Gutierrez ; Madhab Neupane ; Jihui Yang ; Jiun-Haw Chu ; Ting Cao ; Xiaodong Xu ; Saiful Khondaker; |
| 19 | Sub-wavelength, Phase-sensitive Microscopy of Third-order Nonlinearity in Terahertz Frequencies Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report phase-sensitive heterodyne TEFISH microscopy offering simultaneous temporal, spectral, and spatial resolution in the frequency range between 5 — 15 THz, which is the phonon bands of most quantum materials. |
Tong Lin ; Rui Xu ; Xiaotong Chen ; Yuxuan Guan ; Mingxing Yao ; Junhao Zhang ; Xinwei Li ; Hanyu Zhu; |
| 20 | Coherent Manipulation of The Electronic Structure Via Controlling The Electron-phonon Coupling in BaF2 Crystal Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, using the time-resolved High harmonic generation (tr-HHG) spectroscopy technique, we demonstrate the coherent manipulation of electronic structure in BaF 2 crystal through precise control of EPC by ultrashort light pulses, specifically by changing the relative polarization orientation, ellipticity, and strength of the pump light field. |
Jicai Zhang ; Tran Trung Luu ; Ziwen Wang ; Tien Dat Tran ; Wenhao Yu ; Chong Zhang ; Wenqi Xu ; Qianyu Zhang; |
| 21 | Revealing Distinct Photoexcitation Mechanisms of A Coherent Magnon in The Van Der Waals Antiferromagnet NiPS3 Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In our research, we utilize ultrafast optical pump-THz emission spectroscopy to investigate the coupling of high-energy electronic degrees of freedom ( d- d transitions around 1 eV) to a low-energy (~5 meV), zone-center magnon mode in the van der Waals AFM NiPS 3. |
Clifford Allington ; Carina Belvin ; Edoardo Baldini ; Urban Seifert ; Mengxing Ye ; Tommy Tai ; Junghyun Kim ; Jaena Park ; Suhan Son ; Je-Geun Park ; Leon Balents ; Nuh Gedik; |
| 22 | Terahertz Magnon Polaritons in A Cavity Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Using terahertz time-domain spectroscopy in magnetic fields up to 25 T, we observe cavity magnon-polaritons at frequencies greater than one terahertz in an antiferromagnetic slab of NiO forming a Fabry–Pérot cavity. |
T. Elijah Kritzell ; Andrey Baydin ; Fuyang Tay ; Rodolfo Rodriguez ; Hiroyuki Nojiri ; Henry Everitt ; Igor Barsukov ; Junichiro Kono; |
| 23 | Terahertz Parametric Amplification of A Coherent Magnon Mode Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: In this study, we use a pair of intense terahertz (THz) pulses to sequentially excite two distinct coherent magnon modes in an antiferromagnet and find that the lower frequency magnon mode is amplified by driving the higher frequency mode. |
Zhuquan Zhang ; Yu-Che Chien ; Edoardo Baldini ; Keith Nelson; |
| 24 | Combining THz Pump and Photoemission Probe Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We report progress in combining THz frequency pump with angle-resolved photoemission spectroscopy probe at 100kHz repetition rate for the study of quantum materials out of equilibrium. |
Noah Meyer ; Jonathan Sobota ; Patrick Kirchmann ; Matthias Hoffmann ; Zhi-Xun Shen; |
| 25 | Exciton Stark Shift Induced By A Twisted HBN Substrate Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: Here, we report the observation of exciton Stark shift in a MoSe 2 monolayer placed on top of the t-hBN substrate due to polarization field from charge redistribution at the interface of t-hBN. |
Dong Seob Kim ; Chengxin Xiao ; Roy Dominguez ; Kyungpyo Lee ; Rigo Mayorga-Luna ; Hyunsue Kim ; Zhida Liu ; Kenji Watanabe ; Takashi Taniguchi ; Chih-Kang Shih ; Yoichi Miyahara ; Wang Yao ; Xiaoqin Elaine Li; |
| 26 | Quantum Dynamics of Charge Transfer Trions in A MoSe2 Moir ́e Superlattice Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We investigate new many-electron excited states in twisted MoSe2 homobilayers in which optical resonances evolve with twist angle and doping. |
Xiaohui Liu ; Yue Ni ; Zhida Liu ; Haonan Wang ; Dong Seob Kim ; Li Yang ; Xiaoqin Elaine Li; |
| 27 | Disentangling Many-body Effects in The Coherent Optical Response of A 2D Semiconductor Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Monolayer transition metal dichalcogenides (1L-TMDs) have received increasing attention because of their strongly bound excitons[1]. Transient absorption spectroscopy has been … |
Chiara Trovatello ; Florian Katsch ; Qiuyang Li ; Xiaoyang Zhu ; Andreas Knorr ; Giulio Cerullo ; Stefano Dal Conte; |
| 28 | Excitonic Second Harmonic Generation from Chirality in Aligned and Enantiomer Enriched Carbon Nanotubes Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: We verified that the SHG emission originates from the intrinsic structural chirality instead of surface or defects by the tilting-angle and polarization dependence of SHG. |
Rui Xu ; Yuan Tian ; Jacques Doumani ; Weiran Tu ; Yohei Yomogida ; Nina Hong ; Fuyang Tay ; Elizabeth Blackert ; Jiaming Luo ; Jun Lou ; Kazuhiro Yanagi ; Riichiro Saito ; Vasili Perebeinos ; Andrey Baydin ; Junichiro Kono ; Hanyu Zhu; |
| 29 | The Role of Avalanche Ionization in Optical Breakdown of Monolayer Two-dimensional Materials Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: However, even the fundamental question on the relative role of multiphoton and avalanche ionizations is still not clear in these materials. In this report, we investigate this question by studying the optical breakdown threshold of monolayer MoSe 2, MoS 2, WS 2, and hBN by a single 800-nm 150-fs laser pulse. |
Tsinng-Hua Her ; Sabeeh Ahmad ; Wen-Hao Chang ; Hsin-Yu Yao; |
| 30 | Spectrally and Time-Resolved Ultrafast Exciton Dynamics in GaAs Thin Film Using Non-Degenerate Four-Wave Mixing Related Papers Related Patents Related Grants Related Venues Related Experts View Highlight: This work contributes to a deeper understanding of the exciton dynamics in bulk semiconductors. |
Samia Alyami ; Matthew Larson ; Heidrun Schmitzer ; Hark Hoe Tan ; Chennupati Jagadish ; Tuomas Haggren ; Hans Peter Wagner; |
| 31 | Coherence and Lifetime of Excitons in Core-Shell GaAs/AlGaAs Nanowires Related Papers Related Patents Related Grants Related Venues Related Experts View Abstract: Three-beam heterodyne four-wave mixing (HFWM) measurements of the ultrafast coherent and lifetime dynamics of excitons in Au catalyzed MOVPE grown GaAs/AlGaAs/GaAs core-shell-cap … |
Matthew Larson ; Samia Alyami ; Carsten Ullrich ; Naiyin Wang ; Hark Hoe Tan ; Chennupati Jagadish ; Hans-Peter Wagner; |