Search Results - (Author, Cooperation:T. Pfeifer)

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  1. 1
    Staff View
    Publication Date:
    2018-09-18
    Publisher:
    American Physical Society (APS)
    Print ISSN:
    1050-2947
    Electronic ISSN:
    1094-1622
    Topics:
    Physics
    Keywords:
    Atomic and molecular processes in external fields, including interactions with strong fields and short pulses
    Published by:
    http://www.aps.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    C. Ott ; A. Kaldun ; P. Raith ; K. Meyer ; M. Laux ; J. Evers ; C. H. Keitel ; C. H. Greene ; T. Pfeifer
    American Association for the Advancement of Science (AAAS)
    Published 2013
    Staff View
    Publication Date:
    2013-05-11
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Staff View
    Publication Date:
    2018-12-20
    Publisher:
    American Physical Society (APS)
    Print ISSN:
    1050-2947
    Electronic ISSN:
    1094-1622
    Topics:
    Physics
    Keywords:
    Atomic and molecular structure and dynamics ; high-precision measurements
    Published by:
    http://www.aps.org/

    Latest Papers from Table of Contents or Articles in Press
  4. 4
    Staff View
    Publication Date:
    2018-10-27
    Publisher:
    American Physical Society (APS)
    Print ISSN:
    0031-9007
    Electronic ISSN:
    1079-7114
    Topics:
    Physics
    Keywords:
    Atomic, Molecular, and Optical Physics
    Published by:
    http://www.aps.org/

    Latest Papers from Table of Contents or Articles in Press
  5. 5
    C. Ott ; A. Kaldun ; L. Argenti ; P. Raith ; K. Meyer ; M. Laux ; Y. Zhang ; A. Blattermann ; S. Hagstotz ; T. Ding ; R. Heck ; J. Madronero ; F. Martin ; T. Pfeifer
    Nature Publishing Group (NPG)
    Published 2014
    Staff View
    Publication Date:
    2014-12-19
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  6. 6
    Pfeifer, T. ; Heiliger, H.–M. ; Stein von Kamienski, E. ; Roskos, H. G. ; Kurz, H.

    Woodbury, NY : American Institute of Physics (AIP)
    Published 1995
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Microwave attenuation of coplanar waveguides fabricated on high–resistivity silicon substrates with SiO2 insulation layer is investigated from 10 GHz up to 600 GHz by optoelectronic time–domain measurements. They are performed directly on the wafer employing a freely positionable photoconductive switch for picosecond–electric–pulse injection and an electro–optic crystal for pulse detection. The attenuation is significantly altered over the whole frequency range by free–carrier absorption resulting from inversion and accumulation effects at the Si/SiO2 interface. © 1995 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.114316

    Articles: DFG German National Licenses
  7. 7
    Ohlhoff, C. ; Meyer, C. ; Lüpke, G. ; Löffler, T. ; Pfeifer, T. ; Roskos, H. G. ; Kurz, H.

    Woodbury, NY : American Institute of Physics (AIP)
    Published 1996
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Electric field-induced second-harmonic generation (EFISHG) is shown to be a very powerful method for contactless sampling of high-speed electrical signals on silicon millimeter-wave devices. We present picosecond resolution EFISHG measurements of 2 GHz sinusoidal signals on a photoconductive silicon-on-sapphire antenna. We further demonstrate the application of the EFISHG technique for spatial mapping of free-running microwave signals in silicon. © 1996 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.115910

    Articles: DFG German National Licenses
  8. 8
    SCHÜTTLER, K. ; WANG, S. Y. ; PFEIFER, T. ; MEYER, R.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1991
    Staff View
    ISSN:
    1749-6632
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Natural Sciences in General
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1111/j.1749-6632.1991.tb17339.x

    Articles: DFG German National Licenses
  9. 9
    Pfeifer, T. ; Eikelmann, E.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0924-4247
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Electrical Engineering, Measurement and Control Technology
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0924-4247(91)87060-G

    Articles: DFG German National Licenses
  10. 10
    Pfeifer, T. ; Dekorsy, T. ; Kütt, W. ; Kurz, H.
    Springer
    Published 1992
    Staff View
    ISSN:
    1432-0630
    Keywords:
    78.47.+p ; 42.65.Re ; 63.20.−e
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Physics
    Notes:
    Abstract We report on details of coherent LO phonon generation in surface-space-charge regions of III-V-compounds by optical injection of free carriers with laser pulses of 50 fs duration at 2 eV. Both the dynamics of the transient surface field, as well as the coherent lattice vibration, are measured via electro-optic sampling techniques under different experimental conditions. The driving force for the coherent phonon vibration is the sudden depolarization of the crystal lattice due to ultrafast screening of the intrinsic electrical surface field by photoexcited free carriers.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00348337

    Articles: DFG German National Licenses
  11. 11
    Pfeifer, T. ; Park, H. S. ; Thrum, H.
    Springer
    Published 1997
    Staff View
    ISSN:
    1432-1858
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Electrical Engineering, Measurement and Control Technology
    Technology
    Notes:
    Abstract  This paper deals with the integration of different types of standardised and available fieldbus and sensor/actuator bus systems into control systems and applications. The concept for integration and the first steps of realisation considering the bus systems PROFIBUS, CAN and INTERBUS are presented here. This includes a simple but unified application programming interface (API) on all underlying interfaces including standardised fieldbus systems and other improvements for the adaptation to different fieldbus systems. A main feature of these improvements is that there is no recompilation necessary in case of exchanging field bus systems, making the integration of different fieldbus systems much easier. The remaining work for the system integrator is to modify a few configuration tables which are written in ASCII text and easy to handle. The presented concept is realised using VME bus systems with Motorola CPU board, real time operating system OS-9 and hard- and software modules for the interfaces to PROFIBUS, CAN and INTERBUS.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/s005420050079

    Articles: DFG German National Licenses
  12. 12
    Staff View
    ISSN:
    1434-6079
    Keywords:
    PACS. 42.65.Ky Harmonic generation, frequency conversion – 32.80.Wr Other multiphoton processes
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract: High harmonic generation is compared in the dependence on the ellipticity of the fundamental laser radiation for an atomic and a molecular system. In particular argon and nitrogen are compared employing molecular beams and intense ( 3×1014 W/cm2) and ultrashort (80 fs) 800 nm laser pulses. It turns out that for all the harmonics under investigation (H5, H13 and H21) the harmonic yield decreases slower with the ellipticity for the molecule than for the atom. This indicates differences in atomic and molecular high harmonic generation.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1140/epjd/e2002-00174-3

    Articles: DFG German National Licenses