Search Results - "OKAI, K"

Coherent Two-Dimensional Terahertz Magnetic Resonance Spectroscopy of Collective Spin Waves by Lu, Jian, Li, Xian, Hwang, Harold Y, Ofori-Okai, Benjamin K, Kurihara, Takayuki, Suemoto, Tohru, Nelson, Keith A

“…We report a demonstration of two-dimensional (2D) terahertz (THz) magnetic resonance spectroscopy using the magnetic fields of two time-delayed THz pulses. We…”
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Femtosecond Compression Dynamics and Timing Jitter Suppression in a THz-driven Electron Bunch Compressor by Snively, E C, Othman, M A K, Kozina, M, Ofori-Okai, B K, Weathersby, S P, Park, S, Shen, X, Wang, X J, Hoffmann, M C, Li, R K, Nanni, E A

“…We present the first demonstration of THz driven bunch compression and timing stabilization of a relativistic electron beam. Quasi-single-cycle strong field…”
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Super Subwavelength Guiding and Rejecting of Terahertz Spoof SPPs Enabled by Planar Plasmonic Waveguides and Notch Filters Based on Spiral-Shaped Units by Ye, Longfang, Zhang, Wei, Ofori-Okai, Benjamin K., Li, Weiwen, Zhuo, Jianliang, Cai, Guoxiong, Liu, Qing Huo

“…We numerically simulate novel planar plasmonic waveguides and notch filters with excellent guiding and rejection of terahertz (THz) waves with super…”
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Lattice constants and magnetism of L10-ordered FePt under high pressure by Sawada, S., Okai, K., Fukui, H., Takahashi, R., Ishimatsu, N., Maruyama, H., Kawamura, N., Kawaguchi, S., Hirao, N., Seki, T., Takanashi, K., Ohmura, S., Wadati, H.

“…We studied the relationship between the lattice constant and magnetism of L10-ordered FePt under high pressure by means of first-principles calculations and…”
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Dynamics of a Persistent Insulator-to-Metal Transition in Strained Manganite Films by Teitelbaum, Samuel W, Ofori-Okai, B K, Cheng, Yu-Hsiang, Zhang, Jingdi, Jin, Feng, Wu, Wenbin, Averitt, Richard D, Nelson, Keith A

“…Transition metal oxides possess complex free-energy surfaces with competing degrees of freedom. Photoexcitation allows shaping of such rich energy landscapes…”
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Ultrafast visualization of incipient plasticity in dynamically compressed matter by Mo, Mianzhen, Tang, Minxue, Chen, Zhijiang, Peterson, J. Ryan, Shen, Xiaozhe, Baldwin, John Kevin, Frost, Mungo, Kozina, Mike, Reid, Alexander, Wang, Yongqiang, E, Juncheng, Descamps, Adrien, Ofori-Okai, Benjamin K., Li, Renkai, Luo, Sheng-Nian, Wang, Xijie, Glenzer, Siegfried

“…Plasticity is ubiquitous and plays a critical role in material deformation and damage; it inherently involves the atomistic length scale and picosecond time…”
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Terahertz-based subfemtosecond metrology of relativistic electron beams by Li, R. K., Hoffmann, M. C., Nanni, E. A., Glenzer, S. H., Kozina, M. E., Lindenberg, A. M., Ofori-Okai, B. K., Reid, A. H., Shen, X., Weathersby, S. P., Yang, J., Zajac, M., Wang, X. J.

“…We demonstrate single-shot temporal characterization of relativistic electron bunches using single-cycle terahertz (THz) field streaking. A transverse…”
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Intermolecular Vibrations in Hydrophobic Amino Acid Crystals: Experiments and Calculations by Williams, Michael R. C, Aschaffenburg, Daniel J, Ofori-Okai, Benjamin K, Schmuttenmaer, Charles A

“…Intermolecular vibrations of amino acid crystals occur in the THz, or far-infrared, region of the electromagnetic spectrum. We have measured the THz and Raman…”
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Ultrafast multi-cycle terahertz measurements of the electrical conductivity in strongly excited solids by Chen, Z., Curry, C. B., Zhang, R., Treffert, F., Stojanovic, N., Toleikis, S., Pan, R., Gauthier, M., Zapolnova, E., Seipp, L. E., Weinmann, A., Mo, M. Z., Kim, J. B., Witte, B. B. L., Bajt, S., Usenko, S., Soufli, R., Pardini, T., Hau-Riege, S., Burcklen, C., Schein, J., Redmer, R., Tsui, Y. Y., Ofori-Okai, B. K., Glenzer, S. H.

“…Key insights in materials at extreme temperatures and pressures can be gained by accurate measurements that determine the electrical conductivity…”
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Analysis of terahertz generation by beamlet superposition by Ravi, Koustuban, Ofori-Okai, B. K., Nelson, Keith A., Kärtner, Franz X.

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Towards performing high‐resolution inelastic X‐ray scattering measurements at hard X‐ray free‐electron lasers coupled with energetic laser drivers by Descamps, A., Ofori-Okai, B. K., Baldwin, J. K., Chen, Z., Fletcher, L. B., Glenzer, S. H., Hartley, N. J., Hasting, J. B., Khaghani, D., Mo, M., Nagler, B., Recoules, V., Redmer, R., Schörner, M., Sun, P., Wang, Y. Q., White, T. G., McBride, E. E.

“…High‐resolution inelastic X‐ray scattering is an established technique in the synchrotron community, used to investigate collective low‐frequency responses of…”
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X-ray diffraction of metastable structures from supercooled liquid hydrogen by Fletcher, Luke B., Levitan, Abraham L., McBride, Emma E., Kim, Jongjin B., Alves, Eduardo P., Aquila, Andrew, Frost, Mungo, Goede, Sebastian, King, Grace, Lane, Thomas J., Liang, Mengning, MacDonald, Michael J., Ofori-Okai, Benjamin K., Schönwälder, Christopher, Sun, Peihao, Hastings, Jerome B., Boutet, Sebastien, Glenzer, Siegfried H.

“…We report time resolved observations of the crystallization from liquid hydrogen, supercooled to temperatures below the melting point, using 11.2 keV X-ray…”
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Energy response of X-rays under high flux conditions using a thin APD for the energy range of 6–33 keV by Masuda, T., Hiraki, T., Kaino, H., Kishimoto, S., Miyamoto, Y., Okai, K., Okubo, S., Ozaki, R., Sasao, N., Suzuki, K., Uetake, S., Yoshimi, A., Yoshimura, K.

“…This paper reports on the demonstration of a high-rate energy measurement technique using a thin depletion layer silicon avalanche photodiode (Si-APD). A…”
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Simple Resistance Exercise helps Patients with Non-alcoholic Fatty Liver Disease by Takahashi, A, Abe, K, Usami, K, Imaizumi, H, Hayashi, M, Okai, K, Kanno, Y, Tanji, N, Watanabe, H, Ohira, H

“…To date, only limited evidence has supported the notion that resistance exercise positively impacts non-alcoholic fatty liver disease. We evaluated the effects…”
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Expected motor function change following decompressive surgery for spinal metastatic disease by Okai, Bernard K., Lipinski, Lindsay J., Ghannam, Moleca M., Fabiano, Andrew J.

“…Motor function in patients with spinal metastatic disease (SMD) directly impacts a patient's ability to receive systemic therapy and overall survival. Spine…”
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Two-Dimensional Spectroscopy at Terahertz Frequencies by Lu, Jian, Li, Xian, Zhang, Yaqing, Hwang, Harold Y., Ofori-Okai, Benjamin K., Nelson, Keith A.

“…Multidimensional spectroscopy in the visible and infrared spectral ranges has become a powerful technique to retrieve dynamic correlations and couplings in…”
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Direct experimental visualization of waves and band structure in 2D photonic crystal slabs by Ofori-Okai, Benjamin K, Sivarajah, Prasahnt, Werley, Christopher A, Teo, Stephanie M, Nelson, Keith A

“…We demonstrate for the first time the ability to perform time resolved imaging of terahertz (THz) waves propagating within a photonic crystal (PhC) slab. For…”
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Spin properties of very shallow nitrogen vacancy defects in diamond by Ofori-Okai, B. K., Pezzagna, S., Chang, K., Loretz, M., Schirhagl, R., Tao, Y., Moores, B. A., Groot-Berning, K., Meijer, J., Degen, C. L.

“…We investigate spin and optical properties of individual nitrogen vacancy centers located within 1-10 nm from the diamond surface. We observe stable defects…”
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P811 SLEEP DISORDERS IN PATIENTS WITH NON-ALCOHOLIC FATTY LIVER DISEASE by Imaizumi, H, Takahashi, A, Hayashi, M, Okai, K, Kanno, Y, Abe, K, Sato, Y, Anzai, Y, Tanji, N, Ohira, H

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Nonlinear two-dimensional terahertz photon echo and rotational spectroscopy in the gas phase by Lu, Jian, Zhang, Yaqing, Hwang, Harold Y., Ofori-Okai, Benjamin K., Fleischer, Sharly, Nelson, Keith A.

“…Ultrafast 2D spectroscopy uses correlated multiple light−matter interactions for retrieving dynamic features that may otherwise be hidden under the linear…”
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