Search Results - "BARTSCHAT, K"

Coherent control with a short-wavelength free-electron laser by Prince, K. C., Allaria, E., Callegari, C., Cucini, R., De Ninno, G., Di Mitri, S., Diviacco, B., Ferrari, E., Finetti, P., Gauthier, D., Giannessi, L., Mahne, N., Penco, G., Plekan, O., Raimondi, L., Rebernik, P., Roussel, E., Svetina, C., Trovò, M., Zangrando, M., Negro, M., Carpeggiani, P., Reduzzi, M., Sansone, G., Grum-Grzhimailo, A. N., Gryzlova, E. V., Strakhova, S. I., Bartschat, K., Douguet, N., Venzke, J., Iablonskyi, D., Kumagai, Y., Takanashi, T., Ueda, K., Fischer, A., Coreno, M., Stienkemeier, F., Ovcharenko, Y., Mazza, T., Meyer, M.

“…Researchers demonstrate correlation of two colours (63.0 and 31.5 nm wavelengths) in a free-electron laser and control photoelectron angular distribution by…”
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Using Circular Dichroism to Control Energy Transfer in Multiphoton Ionization by De Silva, A H N C, Atri-Schuller, D, Dubey, S, Acharya, B P, Romans, K L, Foster, K, Russ, O, Compton, K, Rischbieter, C, Douguet, N, Bartschat, K, Fischer, D

“…Chirality causes symmetry breaks in a large variety of natural phenomena ranging from particle physics to biochemistry. We investigate one of the simplest…”
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R-matrix with time-dependence calculations for three-sideband RABBITT in helium by Bondy, A. T., del Valle, J. C., Saha, S., Hamilton, K. R., Bharti, D., Harth, A., Bartschat, K.

“…Following up on a recent paper (Bharti et al. in Phys Rev A 109:023110, 2024), we compare the predictions from several R -matrix with time-dependence…”
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Carrier-Envelope Phase-Dependent Strong-Field Excitation by Chetty, D, Glover, R D, Tong, X M, deHarak, B A, Xu, H, Haram, N, Bartschat, K, Palmer, A J, Luiten, A N, Light, P S, Litvinyuk, I V, Sang, R T

“…We present a joint experimental-theoretical study on the effect of the carrier-envelope phase (CEP) of a few-cycle pulse on the atomic excitation process. We…”
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Circular Dichroism in Multiphoton Ionization of Resonantly Excited He^{+} Ions by Ilchen, M, Douguet, N, Mazza, T, Rafipoor, A J, Callegari, C, Finetti, P, Plekan, O, Prince, K C, Demidovich, A, Grazioli, C, Avaldi, L, Bolognesi, P, Coreno, M, Di Fraia, M, Devetta, M, Ovcharenko, Y, Düsterer, S, Ueda, K, Bartschat, K, Grum-Grzhimailo, A N, Bozhevolnov, A V, Kazansky, A K, Kabachnik, N M, Meyer, M

“…Intense, circularly polarized extreme-ultraviolet and near-infrared (NIR) laser pulses are combined to double ionize atomic helium via the oriented…”
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Precise and Accurate Measurements of Strong-Field Photoionization and a Transferable Laser Intensity Calibration Standard by Wallace, W C, Ghafur, O, Khurmi, C, Sainadh U, Satya, Calvert, J E, Laban, D E, Pullen, M G, Bartschat, K, Grum-Grzhimailo, A N, Wells, D, Quiney, H M, Tong, X M, Litvinyuk, I V, Sang, R T, Kielpinski, D

“…Ionization of atoms and molecules in strong laser fields is a fundamental process in many fields of research, especially in the emerging field of attosecond…”
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Electron-impact excitation of the 52S1/2→52P1/2 and 52P3/2 transitions in rubidium by 40 eV electrons: theory and experiment by Hamilton, K. R., Zatsarinny, O., Bartschat, K., Predojević, B., Šević, D., Marinković, B. P., Brunger, M. J.

“…We report on a series of detailed Breit-Pauli and Dirac B-spline R-matrix (DBSR) differential cross section (DCS) calculations for excitation of the 5 2 S 1 /…”
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Threshold alignment reversal and circularly polarized fluorescence in rotationally resolved H2 by Maseberg, J W, Bartschat, K, Gay, T J

“…Using H2 and D2 targets, we have measured the polarization of Fulcher-band fluorescence resulting from spin-polarized electron-impact excitation of…”
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Recommended electron-impact excitation and ionization cross sections for Be I by Dipti, Das, T., Bartschat, K., Bray, I., Fursa, D.V., Zatsarinny, O., Ballance, C., Chung, H.-K., Ralchenko, Yu

“…Analytic fits to the recommended electron-impact excitation and ionization cross sections for Be I are presented. The lowest 19 terms of configurations 2snl…”
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Electron-impact ionization and excitation of helium to the n=1-4 ionic states by Bellm, S, Lower, J, Bartschat, K

“…We present high-precision (e,2e) measurements and calculations for the e-He four-body Coulomb breakup problem. Cross-section ratios for ionization and…”
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Carrier-envelope phase effects in above-threshold ionization of atomic hydrogen by Wallace, W C, Pullen, M G, Laban, D E, Ghafur, O, Xu, Han, Palmer, A J, Hanne, G F, Bartschat, K, Grum-Grzhimailo, A N, Quiney, H M, Litvinyuk, I V, Sang, R T, Kielpinski, D

“…Recent experiments in ultrafast physics have established the importance of above-threshold ionization (ATI) experiments in measuring and controlling the…”
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Anomalously large low-energy elastic cross sections for electron scattering from the CF3 radical by Brunton, J.R., Hargreaves, L.R., Buckman, S.J., García, G., Blanco, F., Zatsarinny, O., Bartschat, K., Brunger, M.J.

“…[Display omitted] •First experimental cross sections for elastic electron-CF3 scattering.•First IAM-SCAR theory cross sections for this system.•Identification…”
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ALTDSE: An Arnoldi–Lanczos program to solve the time-dependent Schrödinger equation by Guan, Xiaoxu, Noble, C.J., Zatsarinny, O., Bartschat, K., Schneider, B.I.

“…We describe a general ab initio and non-perturbative method to solve the time-dependent Schrödinger equation (TDSE) for the interaction of a strong attosecond…”
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Influence of an atomic resonance on the coherent control of the photoionization process by Gryzlova, E. V., Carpeggiani, P., Popova, M. M., Kiselev, M. D., Douguet, N., Reduzzi, M., Negro, M., Comby, A., Ahmadi, H., Wanie, V., Castrovilli, M. C., Fischer, A., Eng-Johnsson, P., Meyer, M., Bartschat, K., Burkov, S. M., Csizmadia, T., Dumergue, M., Kühn, S., Harshitha, N. G., Fule, M., Aeenehvand, F., Stienkemeier, F., Iablonskyi, D., Ueda, K., Finetti, P., Zangrando, M., Mahne, N., Ishikawa, K. L., Plekan, O., Prince, K. C., Allaria, E., Giannessi, L., Callegari, C., Grum-Grzhimailo, A. N., Sansone, G.

“…In coherent control schemes, pathways connecting an initial and a final state can be independently controlled by manipulating the complex amplitudes of their…”
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The interaction of excited atoms and few-cycle laser pulses by Calvert, J. E., Xu, Han, Palmer, A. J., Glover, R. D., Laban, D. E., Tong, X. M., Kheifets, A. S., Bartschat, K., Litvinyuk, I. V., Kielpinski, D., Sang, R. T.

“…This work describes the first observations of the ionisation of neon in a metastable atomic state utilising a strong-field, few-cycle light pulse. We compare…”
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Out-of-plane (e, 2e) experiments on helium L=0, 1, 2 autoionizing levels by deHarak, B A, Bartschat, K, Martin, N L S

“…Out-of-plane (e, 2e) measurements are reported for the helium autoionizing levels (2s2)1S, (2p2)1D, (2s2p)1P, and for direct ionization. While the recoil peak…”
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Triple coincidence (e, γ2e) experiment for simultaneous electron impact ionization excitation of helium by SAKHELASHVILI, G, DOM, A, HÖHR, C, ULLRICH, J, KHEIFETS, A. S, LOWER, J, BARTSCHAT, K

“…Simultaneous ionization and excitation of helium atoms by 500 eV electron impact is observed by a triple coincidence of an ionized slow electron, the recoiling…”
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Dynamics of two-photon double ionization of helium in short intense xuv laser pulses by Guan, Xiaoxu, Bartschat, K., Schneider, B. I.

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Calculated cross sections for the electron-impact ionization of excited argon atoms using the DM formalism by Deutsch, H., Becker, K., Grum-Grzhimailo, A.N., Bartschat, K., Summers, H., Probst, M., Matt-Leubner, S., Märk, T.D.

“…The semiclassical Deutsch-Märk (DM) formalism was used to calculate absolute cross sections for the electron-impact ionization of excited argon atoms from…”
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An experimental and theoretical study of transient negative ions in Mg, Zn, Cd and Hg by Sullivan, J P, Burrow, P D, Newman, D S, Bartschat, K, Michejda, J A, Panajotovic, R, Moghbelalhossein, M, McEachran, R P, Buckman, S J

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