Highlights of Laser Science (DLS) Talks @ APS 2020 March Meeting
American Physics Society (APS) March meeting is one of the largest physics meetings in the world. In 2020, the meeting was canceled due to concerns over the rapid spread of COVID-19.
To help the community quickly catch up on the work to be presented in this meeting, Paper Digest Team processed all talk abstracts, and generated one highlight sentence (typically the main topic) for each. Readers are encouraged to read these machine generated highlights / summaries to quickly get the main idea of each talk. This article is on the talks related to Laser Science (DLS).
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TABLE : Laser Science (DLS)
| Title | Authors | Highlight | Session | |
|---|---|---|---|---|
| 1 | Coherent Nonlinear Optical Microscopy with Mid-infrared Radiation | Knez, Dave; Prince, Richard; Hanninen, Adam; Potma, Eric | We will discuss several coherent nonlinear optical approaches that enable rapid laser-scanning microscopy in the MIR with high, three-dimensional resolution. | Session 1: Coherent Nonlinear Optical Microscopy |
| 2 | Multidimensional spectroscopy on the microscale: Development of a multimodal imaging system incorporating 2D white-light spectroscopy, broadband transient absorption, and atomic force microscopy. | Jones, Andrew; Kearns, Nicholas; Bohlmann Kunz, Miriam; Flach, Jessica; Zanni, Martin | We present a combined coherent multidimensional spectroscopy and microscopy system using visible white-light supercontinuum pulses as a broadband light source. | Session 1: Coherent Nonlinear Optical Microscopy |
| 3 | Image Formation in Coherent Nonlinear Optical Microscopy | Ramunno, Lora | I will discuss the origin of these strage effects, and review our work and others in this area over the last several years. | Session 1: Coherent Nonlinear Optical Microscopy |
| 4 | Strong-field-driven dynamics and high-harmonic generation in interacting 1D systems | Sols, Fernando; de Vega, Sandra; Cox, Joel; de Abajo, Javier Garcia | We explore the role of electronic band structure and Coulomb interactions in solid-state HHG by studying the optical response of linear atomic chains and carbon nanotubes to intense ultrashort pulses. | Session 1: Coherent Nonlinear Optical Microscopy |
| 5 | Broadband Coherent Anti-Stokes Raman Scattering (BCARS) MicroSpectroscopy | Camp, Charles | In this seminar, I will present an introduction to BCARS microscopy from a theoretical and practical perspective. | Session 1: Coherent Nonlinear Optical Microscopy |
| 6 | Studying the photodynamics of FRET paired fluorescent molecules near gold nanogratings | Steele, Jennifer; Ramnarace, Chae; Farner, WIlliam | In this talk, ongoing work on the optimizing the increase in efficiencies will be discussed. | Session 1: Coherent Nonlinear Optical Microscopy |
| 7 | Geophotonics: Multimodal Nonlinear Optical Microscopy in Geology | Pegoraro, Adrian | Nonetheless, we show that these techniques, such as second harmonic generation, coherent Raman microscopy, and pump-probe microscopy, provide complementary contrast mechanisms for a host of geological systems. | Session 1: Coherent Nonlinear Optical Microscopy |
| 8 | Nonlinear Pump-Probe Microscopy Improves Early Detection of Metastatic Melanoma | Warren, Warren; Grass, David; Fischer, Martin; jia, xiaomeng | In this talk we focus on our efforts of translating pump-probe microscopy into clinics and our current status on detection of metastatic disease of melanoma. | Session 1: Coherent Nonlinear Optical Microscopy |
| 9 | Visualizing molecular structure and function in soft matter using coherent Raman imaging | Parekh, Sapun | In this talk, I will present an overview of our recent work using nonlinear vibrational spectroscopic imaging to reveal unique structural-function relationships in polymeric soft matter systems. | Session 1: Coherent Nonlinear Optical Microscopy |
| 10 | Correlating Multiphoton-Absorption-Induced Luminescence (MAIL) with Morphology in Noble-Metal Nanostructures | Grafov, Anna; Lin, Xiaoying; Dawood, Farah; Fourkas, John | We examine how the morphologies of noble-metal nanostructures correlate with their MAIL signals. | Session 1: Coherent Nonlinear Optical Microscopy |
| 11 | Stimulated Raman scattering spectroscopic optical coherence tomography | Robles, Francisco | Here we will present a theoretical framework for SRS-SOCT, discuss its advantages and limitations, and show experimental results from excised tissues. | Session 1: Coherent Nonlinear Optical Microscopy |
| 12 | Spectroscopic Fourier-Transform Coherent Raman Microscopy | Cicerone, Marcus; Audier, Xavier; Chen, Wei-Wen; Sharon-Frilling, Ronit | I will briefly introduce spectroscopic CRI, specifically broadband coherent anti-Stokes Raman scattering (BCARS) , discussing key features required to make these methods practical, current impedements to improvements in speed and sensitivity, and new approachs we are taking to overcome these impedements. | Session 1: Coherent Nonlinear Optical Microscopy |
| 13 | Ultrafast THz Probe of Phonon-Assisted Processes in Photoexcited bulk GaAs | Cinquanta, Eugenio; Gatto, Lorenzo; Crippa, Gabriele; Vozzi, Caterina; Stagira, Salvatore | Independently from the excitation wavelength, we observed a rich transient THz response where a broad Drude-Lorentz complex conductivity is dressed with several sharp Lorentzian features in the 0.5-2.5 THz spectral range. | Session 2: Optical Tools, Techniques, Methods, and Theory |
| 14 | Observations of Group Velocity Dispersion, Raman Scattering, Stimulated Raman, and Spectral Broadening for O-waves and E-waves from a Calcite Crystal Using Femtosecond Laser Pulses | Mazhar, Shah Faisal; Meyer, Henry; Alfano, Robert | Observations of Group Velocity Dispersion, Raman Scattering, Stimulated Raman, and Spectral Broadening for O-waves and E-waves from a Calcite Crystal Using Femtosecond Laser Pulses | Session 2: Optical Tools, Techniques, Methods, and Theory |
| 15 | Multiphoton photoemission spectroscopy of TiO2 and Au/TiO2 surfaces | James, Namitha; Petek, Hrvoje | By probing the rutile TiO 2(110) and Au/TiO 2 interface using multiphoton photoemission (mPP) with a tunable ultrashort (~20 fs) laser pulse, we investigate the dynamics of electrons excited in its conduction band. | Session 2: Optical Tools, Techniques, Methods, and Theory |
| 16 | Exact Theory for Two-Color Laser-Induced Photoemission from a Biased Metal Surface | Zhang, Peng; Luo, Yi; Zhou, Yang | Our study suggests a practical way to maintain a strong modulation to high current photoemission. | Session 2: Optical Tools, Techniques, Methods, and Theory |
| 17 | Generation and applications of intense terahertz fields produced by multi-color laser pulses interacting with gas plasmas | BERGE, Luc | We report new features obtained in the framework of the French project ALTESSE, the main objective of which consisted in testing the efficiency of a laser-based terahertz time-domain spectroscopy of various materials, using the air-biased coherent detection (ABCD) method. | Session 2: Optical Tools, Techniques, Methods, and Theory |
| 18 | Periodic Lensing from a One-Component Plasma Imaged by Ultrafast Transmission Electron Microscopy | Zandi, Omid; Sykes, Allan; Cornelius, Ryan; Alcorn, Francis; Reed, Bryan; van der Veen, Renske | We analytically described the dynamics of OCEP and its time-dependent focal length to extract the number of electrons and their velocity spread. | Session 2: Optical Tools, Techniques, Methods, and Theory |
| 19 | Attosecond Pulses with Time-Varying Orbital Angular Momentum: The Self-Torque of Light | Nguyen, Quynh; Dorney, Kevin; Rego, Laura; Brooks, Nathan; Liao, Chen-Ting; Roman, Julio; Couch, David; Liu, Allison; Pisanty, Emilio; Lewenstein, Maciej; Plaja, Luis; Kapteyn, Henry; Hernandez-Garcia, Carlos; Murnane, Margaret | We exploit the highly non-linear and non-perturbative process of high-harmonic generation to imprint time-dependent OAM onto extreme ultraviolet (EUV) beams. | Session 2: Optical Tools, Techniques, Methods, and Theory |
| 20 | Direct in-situ single-shot measurements of the absolute carrier-envelope phases of ultrashort pulses | Debrah, Duke; Basnayake, Gihan; Li, Wen | Here, we demonstrate a novel in-situ technique based on angular streaking that can achieve such a goal without complicated calibration procedures. | Session 2: Optical Tools, Techniques, Methods, and Theory |
| 21 | Photoninduced quantum entanglement between remote electron-phonon systems | Ishida, Kunio; Matsueda, Hiroaki | In this paper we discuss the dynamics of entanglement creation in remote electron-phonon systems which is mediated by irradiation of quantized light. | Session 2: Optical Tools, Techniques, Methods, and Theory |
| 22 | Characterization of an ultrastable sapphire optical cavity operated at 10 K | Valencia, Jose; Clements, Ethan; Kim, May; Hume, David; Leibrandt, David | We present an optical reference cavity with a calculated thermal noise limit near Δf/f = 3×10 -18, which is compatible with reaching the ultimate stability limit due to quantum projection noise for clocks based on the 1S 0- 3P 0 transition in 27Al + (8 mHz natural linewidth at 267 nm) [2]. | Session 2: Optical Tools, Techniques, Methods, and Theory |
| 23 | Optical manipulation system for Steady State Microbunching in storage ring. | Wu, Pohsun; Luo, Hao-Wen; Chao, Alexander; Pan, Ci-Ling; Tang, Chuanxiang | We have studied the effect on microbunch formation and maintenance of turn by turn phase with arbitrary phase jitter with noise spectrum from a commercially available relatively high-power continuous wave laser with a MW level enhancement cavity. | Session 2: Optical Tools, Techniques, Methods, and Theory |
| 24 | Investigating High Harmonic Generation Beam Dynamics with Ptychographic Lensless Imaging | Schmidt, David; Ramlet, Logan; Wilhelm, Alex; Goldberger, David; Adams, Daniel; Durfee, Charles | In this work, we shift the emphasis in computational imaging from reconstructing the specimen to understanding the details of the EUV light generated through HHG. | Session 2: Optical Tools, Techniques, Methods, and Theory |
| 25 | Terahertz through X-ray Control and Measurement of Quantum Material Dynamics | Nelson, Keith | Terahertz through X-ray Control and Measurement of Quantum Material Dynamics | Session 3: Ultrafast Dynamics and Control of Quantum Materials |
| 26 | Magnetic symmetry breaking driven by photoinduced piezomagnetism | Disa, Ankit; Fechner, Michael; Liu, Biaolong; Nova, Tobia; Foerst, Michael; Radaelli, Paolo G.; Cavalleri, Andrea | Here, we demonstrate magnetic symmetry breaking by light leading to an induced ferrimagnetic phase in the classical antiferromagnet CoF 2. | Session 3: Ultrafast Dynamics and Control of Quantum Materials |
| 27 | Distinguishing Intrinsic from Extrinsic Effects in Time-resolved Photoemission | Kirchmann, Patrick; Pfau, Heike; Sobota, Jonathan; Soifer, Hadas; Gauthier, Nicolas; Xu, Kejun; Xiong, Hongyu; Tang, Shujie; Rotundu, Costel; Shen, Zhixun | I will discuss how electron dynamics that are intrinsic to the sample can be distinguished from generic electron dynamics that are extrinsic. | Session 3: Ultrafast Dynamics and Control of Quantum Materials |
| 28 | Tuning time and energy resolutions in time- and angle-resolved photoemission spectroscopy | Gauthier, Alexandre; Sobota, Jonathan; Gauthier, Nicolas; Xu, Kejun; Pfau, Heike; Rotundu, Costel; Shen, Zhixun; Kirchmann, Patrick | We demonstrate tunable time and energy resolutions by adjusting the thickness of nonlinear BaB 2O 4 crystals commonly used to generate 6 eV pulses from a 1.5 eV fundamental. | Session 3: Ultrafast Dynamics and Control of Quantum Materials |
| 29 | Time-resolved ARPES study on Ta2NiSe5 | Suzuki, Takeshi; Shinohara, Yasushi; Lu, Yangfan; Watanabe, Mari; Xu, Jiadi; Ishikawa, Kenichi; Takagi, Hide; Nohara, Minoru; Katayama, Naoyuki; Sawa, Hiroshi; Fujisawa, Masami; Kanai, Teruto; Ishii, Nobuhisa; Itatani, Jiro; Mizokawa, Takashi; Shin, Shik; Okazaki, Kozo | In this work, we have used time-resolved ARPES (TARPES) to investigate the photo-excited non-equilibrium phases in Ta 2NiSe 5. | Session 3: Ultrafast Dynamics and Control of Quantum Materials |
| 30 | Light-driven ultrafast phonomagnetism | Afanasiev, Dmytro; Hortensius, Jorrit; Ivanov, Boris; Sasani, Alireza; Bousquet, Eric; Blanter, Yaroslav; Mikhaylovskiy, Rostislav; Kimel, Alexey; Caviglia, Andrea | [1] In this work we control the magnetic state by resonantly pumping optical phonons, low-energy elementary vibrations of the crystalline lattice. | Session 3: Ultrafast Dynamics and Control of Quantum Materials |
| 31 | Absence of amplitude mode softening of intermediate states in the charge density wave material 1T-TaSe2 | You, Wenjing; Shi, Xun; Zhang, Yingchao; Zhong, Yigui; Tao, Zhensheng; Bauer, Michael; Rossnagel, Kai; Kapteyn, Henry; Murnane, Margaret | Absence of amplitude mode softening of intermediate states in the charge density wave material 1T-TaSe2 | Session 3: Ultrafast Dynamics and Control of Quantum Materials |
| 32 | Universal dynamics of order parameter fluctuations in pump-probe experiments | Dolgirev, Pavel; Michael, Marios; Zong, Alfred; Gedik, Nuh; Demler, Eugene | Motivated by this recurrent phenomenology, we develop a simple non-perturbative effective model of dynamics of collective bosonic excitations in pump-probe experiments. | Session 3: Ultrafast Dynamics and Control of Quantum Materials |
| 33 | Ultrafast nonlinear excitation of collective modes in iron pnictides by intense terahertz pulses | Vaswani, Chirag; Mudiyanselage, Din; Kang, Jong-Hoon; Mootz, Martin; Yang, Xu; Perakis, Ilias; Eom, Chang-Beom; Wang, Jigang | Here we report the observation of collective modes in iron pnictides excited by intense THz pulses. | Session 3: Ultrafast Dynamics and Control of Quantum Materials |
| 34 | Experimental observation of phonon- and band-specific electron-phonon coupling in a topological semi-metal | Gauthier, Nicolas; Soifer, Hadas; Gauthier, Alexandre; Sie, Edbert Jarvis; Lindenberg, Aaron; Kirchmann, Patrick; Shen, Zhixun | In this context we studied the electron dynamics of WTe 2 using time- and angle-resolved photoemission spectroscopy. | Session 3: Ultrafast Dynamics and Control of Quantum Materials |
| 35 | Light-induced coherent modulation of the electrons and lattice in a charge density wave material | Shi, Xun; You, Wenjing; Zhang, Yingchao; Tao, Zhensheng; Zhong, Yigui; Wu, Xianxin; Thomale, Ronny; Cheenicode Kabeer, Fairoja; Maldonado, Pablo; Oppeneer, Peter; Bauer, Michael; Rossnagel, Kai; Kapteyn, Henry; Murnane, Margaret | In this work, we use time- and angle-resolved photoemission spectroscopy to show that a femtosecond laser pulse can coherently modulate the electrons and lattice in the charge density wave (CDW) material 1 T-TaSe 2 [1, 2]. | Session 3: Ultrafast Dynamics and Control of Quantum Materials |
| 36 | Towards a Many Body Theory for Fourier Transform Inelastic X-Ray Scattering Experiments in Correlated Materials | Nesselrodt, Ryan; Freericks, James | With this in mind we seek to develop a fully quantum mechanical, many-body theory for ultrafast pump-probe scattering experiments that accounts for electron-phonon coupling and electronic correlations that can inform and inspire experiments. | Session 3: Ultrafast Dynamics and Control of Quantum Materials |
| 37 | Ultrafast Nonlinear Optical Spectroscopy of the Charge Density Wave in 1T-TaS2 | Luo, Xiangpeng; Jin, Wencan; Cheong, Sang-Wook; Zhao, Liuyan | Here, we report using temperature-dependent and time-resolved nonlinear optical techniques to study the 1T polytype of TaS 2, an intensively-studied prototypical system hosting the charge density wave (CDW) order. | Session 3: Ultrafast Dynamics and Control of Quantum Materials |
| 38 | Multiexciton quantum interference in semiconductor nanocrystal quantum dots | Tahara, Hirokazu; Sakamoto, Masanori; Teranishi, Toshiharu; Kanemitsu, Yoshihiko | Here, we studied ultrafast multiexciton dynamics immediately after photoexcitation using quantum interference measurements [1]. | Session 4: Ultrafast Dynamics in Novel Structures and Materials |
| 39 | Ultrafast molecular dynamics of strongly adsorbed species on oxide surface | Pathan, Md Afjal Khan; Gupta, Aakash; Vaida, Mihai | In this contribution, the ultrafast dynamics of molecules strongly attached to oxide surfaces are studied using the femtosecond pump-probe mass spectrometry technique. | Session 4: Ultrafast Dynamics in Novel Structures and Materials |
| 40 | Phase-resolved 2D coherent spectra of exciton-polaritons and biexcitons in a semiconductor microcavity | Paul, Jagannath; Wahlstrand, Jared; Bristow, Alan | Analysis of both the polariton and biexciton modes is reported. | Session 4: Ultrafast Dynamics in Novel Structures and Materials |
| 41 | Ultrafast thermal response of bismuth and indium nanoparticles near their melting points | Xiong, Hui; Zhang, Yueli; Elsayed-Ali, Hani | Ultrafast thermal response of bismuth and indium nanoparticles near their melting points | Session 4: Ultrafast Dynamics in Novel Structures and Materials |
| 42 | PT-Symmetry in Colloidal Quantum Dot Microdisk Lasers with Engineered Notches | Zeng, Qingji; Lafalce, Evan; Lin, Zhiqun; Tsukruk, Vladimir; Vardeny, Valy | We have studied laser mode behavior when a notch is engineered into the boundary of circular microdisk resonator based on colloidal quantum dots. | Session 4: Ultrafast Dynamics in Novel Structures and Materials |
| 43 | Photogeneration and recombination dynamics of trions and biexcitons in CsPbX3 nanocrystals revealed by double-pump transient-absorption spectroscopy | Kobiyama, Etsuki; Nakahara, Satoshi; Tahara, Hirokazu; Kawawaki, Tokuhisa; Saruyama, Masaki; Sato, Ryota; Teranishi, Toshiharu; Kanemitsu, Yoshihiko | Here, we investigate the photogeneration and recombination dynamics of trions and biexcitons in all-inorganic perovskite CsPbX 3 (X = Cl, Br, I) NCs by conducting double-pump transient-absorption spectroscopy. | Session 4: Ultrafast Dynamics in Novel Structures and Materials |
| 44 | Observation and control of a photoinduced terahertz plasmonic mode in InAs mushroom arrays | Haque, Sheikh Rubaiat Ul; Zhao, Xiaoguang; Zhang, Jingdi; March, Stephen; Bank, Seth; Zhang, Xin; Averitt, Richard | We report the observation and control of a plasmonc resonance via photoexcitation in InAs mushroom metamaterial arrays. | Session 4: Ultrafast Dynamics in Novel Structures and Materials |
| 45 | Mapping out transient topological states in graphene by dichroic time-resolved photoemission | Schueler, Michael; De Giovannini, Umberto; Huebener, Hannes; Rubio, Angel; Sentef, Michael; Werner, Philipp; Devereaux, Thomas | We study the build-up of the Floquet-Chern insulator state in graphene and its implications in time- and angle-resolved photoemission (ARPES). | Session 4: Ultrafast Dynamics in Novel Structures and Materials |
| 46 | Time Resolved Investigation of Coherent Surface Phonon Polaritons | Mante, Pierre-Adrien | [3] Here, we propose and demonstrate an experimental approach using femtosecond pump-probe spectroscopy allowing the time-domain study of surface phonon polaritons. | Session 4: Ultrafast Dynamics in Novel Structures and Materials |
| 47 | Superconducting Higgs Mode Metamaterials | Hammock, Ian; Kaj, Kelson; Haque, Sheikh Rubaiat Ul; Chen, Chunxu; Zhao, Xiaoguang; Cremin, Kevin; Zhang, Gufeng; Schalch, Jacob; Zhang, Jingdi; Zhang, Xin; Averitt, Richard | In this work, we investigate the possibility of using metamaterials to couple to the Higgs amplitude mode in an optimally doped thin film cuprate superconductor, YBa 2Cu 3O 7- d (YBCO). | Session 4: Ultrafast Dynamics in Novel Structures and Materials |
| 48 | Plasmonic nano-focused spectroscopy and imaging: from few-fs dynamics to a new regime of nonlinear nano-optics | Cai, Yijian; Jiang, Tao; Kravtsov, Vasily; Raschke, Markus | We will discuss how spatial nano-confinement and near-field momenta provide new pathways for enhancing nonlinear frequency conversion where, e.g., plasmonic gradient-field effects amplify dipole-forbidden nonlinear responses. | Session 4: Ultrafast Dynamics in Novel Structures and Materials |
| 49 | Terahertz Quasiparticle Dynamics and Control in Ca3Ru2O7 | Kaj, Kelson; Cremin, Kevin; Wang, Yu; Hammock, Ian; Ali, Mustafa; Haque, Rubaiat; Zhang, Gufeng; Kissin, Peter; Yuan, Yakun; Puggioni, Danilo; Gopalan, Venkatraman; Mao, Zhiqiang; Rondinelli, James; Averitt, Richard | In the present study, we have investigated near-IR changes in the THz reflectivity following near-infrared excitation. | Session 4: Ultrafast Dynamics in Novel Structures and Materials |
| 50 | Topological light for the control of skyrmionic textures and spin waves | Sato, Masahiro; Fujita, Hiroyuki | In the last few years, we have theoretically proposed ways of controlling magnetism with topological light [1-4]. | Session 4: Ultrafast Dynamics in Novel Structures and Materials |
| 51 | Low-Temperature Phases of Er1-xYxFeO3 Mapped Out by Terahertz Time-Domain Spectroscopy | Marquez Peraca, Nicolas; Li, Xinwei; Bamba, Motoaki; Huang, Chien-Lung; Yuan, Ning; Noe, Gary; Morosan, Emilia; Cao, Shixun; Kono, Junichiro | In the present work, we performed an extensive study of the low-temperature phases of Er 1 -xY xFeO 3 as a function of temperature, magnetic field and x through terahertz time-domain magnetospectroscopy. | Session 4: Ultrafast Dynamics in Novel Structures and Materials |
| 52 | Light induced phase transitions in charge density waves | Gedik, Nuh | To this end, we studied light induced phase transitions in two different charge density wave (CDW) systems. | Session 5: Ultrafast Laser-Based Probes of Quantum Materials |
| 53 | Quantum Beats by Lightwave Acceleration of Broken-Symmetry Supercurrents | Wang, Jigang | In this talk, I will discuss our recent progress towards applying this new tuning knob, enabled by using single- and few-cycle THz pulses, to reveal some distinguishing features of quantum systems: Anderson pseudo-spin precessions and higher harmonics forbidden by equilibrium symmetry, hidden emergent phases that are difficult to be accessed by other tuning methods, Higgs modes in unconventional superconductors. | Session 5: Ultrafast Laser-Based Probes of Quantum Materials |
| 54 | Local Symmetry Breaking and Spin Momentum Locking in Cuprates Superconductors | Lanzara, Alessandra | In this talk I will present the effect of local breaking of inversion symmetry in cuprates superconductors and show that this leads to unusual phenomena and the appearance of a non-zero spin polarization with a well-defined spin momentum locking, that is strictly linked to the Fermi surface topology. | Session 5: Ultrafast Laser-Based Probes of Quantum Materials |
| 55 | Femtosecond Covariance Spectroscopy to Control Multimode Quantum Correlations | Fausti, Daniele | As a proof of principle, we have successfully applied such approach to the study of Raman-active vibrational modes excited through Impulsive Stimulated Raman Scattering (ISRS) in crystalline quartz. | Session 5: Ultrafast Laser-Based Probes of Quantum Materials |
| 56 | Ultrafast X-ray Molecular Dynamics | Leone, Stephen | The method is used to investigate dissociating molecules, ring opening, passage through curve crossings and conical intersections, singlet-to-triplet transitions, and electronic and vibrational coherences. | Session 6: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain |
| 57 | Probing the ultrafast intermediate states of a divalent cobalt-manganese complex with femtosecond M-edge XANES | Ryland, Elizabeth; Zhang, Kaili; Vura-Weis, Josh | In this work we perform ultrafast transient M-edge XANES on divalent Cobalt-Manganese(N,N,N-tri(2-(2-pyridylamino)ethyl)amine)Cl, a heterobimetallic system with directly-interacting dual metal centers held within a non-innocent ligand scaffold. | Session 6: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain |
| 58 | Ultrafast spin cross-over dynamics in heme proteins | Chergui, Majed | Here too we establish the photocycle as a SCO event, and propose that doming is crucial for the electron transfer properties of the protein, rather than heme ruffling as previously proposed. | Session 6: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain |
| 59 | Ultrafast X-Ray Absorption Spectroscopy as a Probe of Conical Intersection-Mediated Dynamics: Theoretical Tools and Studies | Neville, Simon | In this talk, I will present recent studies using CVS-DFT/MRCI for the exploration of the sensitivity of TRXAS to conical-intersection-mediated dynamics in a range of molecules, ranging from the disentangling of competing relaxation pathways in allene to the Jahn-Teller effect-mediated dynamics in the graphene nanoflake coronene. | Session 6: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain |
| 60 | RIXS within the coupled-cluster framework reveals the hidden transitions of transient species in ionized liquid water | Nanda, Kaushik; Kjellsson, Ludvig; Rubensson, Jan-Erik; Doumy, Gilles; Southworth, Stephen; Ho, Phay; March, Anne; Al Haddad, Andre; Kumagai, Yoshiaki; Tu, Ming-Feng; Mohd Yusof, Muhammad Shafiq; Debnath, Tushar; Arnold, Caroline; Welsch, Ralph; Inhester, Ludger; Santra, Robin; Simon, Marc; Schlotter, William; Moeller, Stefan; Coslovich, Giacomo; Korelek, Jake; DePonte, Daniel; Loh, Zhi-Heng; Krylov, Anna; Young, Linda | We will present a novel electronic structure method within the equation-of-motion coupled cluster framework that facilitates converged calculations of the RIXS spectra for both closed- and open-shell species. | Session 6: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain |
| 61 | Simulating Time-resolved X-ray Spectroscopy: Progress and Challenges | Penfold, Tom | Herein I will present some recent work on intersystem crossing dynamics in transition metal complexes and discuss the potential insight that could be obtained from femtosecond X-ray studies. | Session 6: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain |
| 62 | Theory and implementation of nonlinear X-ray spectroscopies: application to time-resolved diffraction, X-ray chirality and transient grating experiments | Rouxel, Jeremy; Mukamel, Shaul | We present how X-ray experiments can make use of their element selectivity to probe matter chirality with additional structural information. | Session 7: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |
| 63 | Quantum control of high-energy harmonic generation by pulse shaping | Gui, Guan; Karl, Robert; Thurston, Jeremy; Johnsen, Peter; Bevis, Charles; Binnie, Iona; Kapteyn, Henry; Murnane, Margaret; Liao, Chen-Ting | Here we demonstrate the ability for enhancing the HHG flux and spectrum at higher photon energies around ~100eV, relevant for imaging and magnetic spectroscopies. | Session 7: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |
| 64 | Attosecond soft-X-ray spectroscopy in the gas and liquid phases | Woerner, Hans Jakob | A promising approach is offered by the element- and site-sensitivity of X-ray spectroscopy. | Session 7: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |
| 65 | Probing Photo-Physical Processes in Solid-state Organic Semiconductors Using Optical Pump – X-ray Probe Spectroscopy | Toney, Michael; Abeldsamie, Maged; Vigil, Julian; Cordones-Hahn, Amy; schneider, sebastian; Reid, Obadiah; Allen, Taylor; Rumbles, Garry; Zhang, Xiaoyi | Here, using Tr-XAS combined with transient absorption spectroscopy and transient microwave conductivity, we investigate the local structure and time evolution of photoinduced charge-separated species in thin films of molecularly dispersed octabutoxy-Zinc(II) phthalocyanine (OButx-ZnPc) in a matrix of the well-known conjugated polymer poly(3-hexylthiophene) (P3HT). | Session 7: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |
| 66 | Enhancement of X-ray image brightness through transient ionic resonances | Gorkhover, Tais | Our recent study at LCLS suggests that transient ionic resonances (TIR) above an absorption edge can enhance diffraction efficiency before significant structural damage can occur. | Session 7: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |
| 67 | Ultrafast X-ray Absorption and Time-Resolved Resonant X-ray Scattering in a Mott Insulator | Moritz, Brian; Wang, Yao; Chen, Yuan; Jia, Chunjing; Devereaux, Thomas | This work provides a theoretical foundation for existing and future tr-RIXS experiments. | Session 7: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |
| 68 | Ultrafast Dynamics and Imaging at the Nanoscale using Tabletop Coherent X-ray Sources | Kapteyn, Henry; Murnane, Margaret | Highlights include the discovery of a new regime of collective nanoscale heat transport,[5] and work highlighting our current incomplete understanding of dynamic mechanisms in magnetic materials. | Session 7: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |