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Akademický článek
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Autor:
Simpson, E. R., Labeye, M., Camp, S., Ibrakovic, N., Bengtsson, S., Olofsson, A., Schafer, K. J., Gaarde, M. B., Mauritsson, J.
Publikováno v:
Phys. Rev. A 100, 023403 (2019)
We extend the recently developed technique of opto-optical modulation (OOM) to probe state-resolved ac-Stark-induced phase variations of a coherently excited ensemble of helium atoms. In a joint experimental and theoretical study, we find that the sp
Externí odkaz:
http://arxiv.org/abs/1903.07584
Autor:
Musacchio Schafer K, Joiner T
Publikováno v:
Archives of suicide research : official journal of the International Academy for Suicide Research [Arch Suicide Res] 2024 Oct-Dec; Vol. 28 (4), pp. 1336-1349. Date of Electronic Publication: 2024 Jan 09.
Autor:
Krause K; Biomedical Informatics, Vanderbilt University Medical Center, Nashville, United States., Davis S; Biomedical Informatics, Vanderbilt University Medical Center, Nashville, United States., Yin Z; Biomedical Informatics, Vanderbilt University Medical Center, Nashville, United States., Schafer K; Biomedical Informatics, Vanderbilt University Medical Center, Nashville, United States., Rosenbloom T; Biomedical Informatics, Vanderbilt University Medical Center, Nashville, United States., Walsh C; Biomedical Informatics, Vanderbilt University Medical Center, Nashville, United States.
Publikováno v:
Applied clinical informatics [Appl Clin Inform] 2024 Sep 09. Date of Electronic Publication: 2024 Sep 09.
Autor:
Larsen, E. W., Carlstrom, S., Lorek, E., Heyl, C. M., Palecek, D., Schafer, K. J., L'Huillier, A., Zigmantas, D., Mauritsson, J.
The sub-cycle dynamics of electrons driven by strong laser fields is central to the emerging field of attosecond science. We demonstrate how the dynamics can be probed through high-order harmonic generation, where different trajectories leading to th
Externí odkaz:
http://arxiv.org/abs/1506.08660
Autor:
Schoun, S. B., Chirla, R., Wheeler, J., Roedig, C., Agostini, P., DiMauro, L. F., Schafer, K. J., Gaarde, M. B.
High harmonic generation (HHG) is used to measure the spectral phase of the recombination dipole matrix element (RDM) in argon over a broad frequency range that includes the 3p Cooper minimum (CM). The measured RDM phase agrees well with predictions
Externí odkaz:
http://arxiv.org/abs/1310.7008
Autor:
Obey MR; Washington University in St. Louis, St. Louis, Missouri., Schafer K; Washington University in St. Louis, St. Louis, Missouri., Matheny LM; School of Data Science and Analytics, Kennesaw State University, Kennesaw, Georgia., McAndrew CM; Washington University in St. Louis, St. Louis, Missouri., Gardner MJ; Stanford School of Medicine, Palo Alto, California., Ricci WM; Hospital for Special Surgery, New York City, New York., Clanton TO; Steadman Philippon Research Institute, Vail, Colorado., Backus JD; Washington University in St. Louis, St. Louis, Missouri.; School of Medicine, Washington University in St. Louis, St. Louis, Missouri.
Publikováno v:
Foot & ankle specialist [Foot Ankle Spec] 2024 Jun; Vol. 17 (3), pp. 270-276. Date of Electronic Publication: 2023 May 26.
Autor:
Farrell, J. P., Spector, L. S., McFarland, B. K., Bucksbaum, P. H., Gühr, M., Gaarde, M. B., Schafer, K. J.
Publikováno v:
Phys. Rev. A 83, 023420 (2011)
We study the influence of phase matching on interference minima in high harmonic spectra. We concentrate on structures in atoms due to interference of different angular momentum channels during recombination. We use the Cooper minimum (CM) in argon a
Externí odkaz:
http://arxiv.org/abs/1011.1297
Autor:
Swoboda, M., Fordell, T., Klünder, K., Dahlström, J. M., Miranda, M., Buth, C., Schafer, K. J., Mauritsson, J., L'Huillier, A., Gisselbrecht, M.
Publikováno v:
Physical Review Letters 2010
We study resonant two-color two-photon ionization of Helium via the 1s3p 1P1 state. The first color is the 15th harmonic of a tunable titanium sapphire laser, while the second color is the fundamental laser radiation. Our method uses phase-locked hig
Externí odkaz:
http://arxiv.org/abs/1002.2550
Autor:
Mauritsson, J., Remetter, T., Swoboda, M., Klunder, K., L'Huillier, A., Schafer, K. J., Ghafur, O., Kelkensberg, F., Siu, W., Johnsson, P., Vrakking, M. J. J., Znakovskaya, I., Uphues, T., Zherebtsov, S., Kling, M. F., Lepine, F., Benedetti, E., Ferrari, F., Sansone, G., Nisoli, M.
Publikováno v:
Phys. Rev. Lett. 105, 053001 (2010)
We present an interferometric pump-probe technique for the characterization of attosecond electron wave packets (WPs) that uses a free WP as a reference to measure a bound WP. We demonstrate our method by exciting helium atoms using an attosecond pul
Externí odkaz:
http://arxiv.org/abs/1001.1085