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  • Journal article
    Kim MS, Agarwal GS, 1998,

    Cavity-induced two-photon absorption in unidentical atoms

    , Physical Review A, Vol: 57, Pages: 3059-3064, ISSN: 1050-2947
  • Journal article
    Jacobs K, Knight PL, 1998,

    Linear quantum trajectories: Applications to continuous projection measurements

    , PHYSICAL REVIEW A, Vol: 57, Pages: 2301-2310, ISSN: 1050-2947
  • Conference paper
    Ritsataki A, New GHC, Mellish R, Hyde SCW, French PMW, Taylor JRet al., 1998,

    Theoretical modeling of gain-guiding effects in experimental all-solid-state KLM lasers

    , Meeting on Ultrafast Optics, Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, Pages: 185-192, ISSN: 1077-260X
  • Journal article
    Horvath GZK, Hernandez-Pozos JL, Dholakia K, Rink J, Segal DM, Thompson RCet al., 1998,

    Ion dynamics in perturbed quadrupole ion traps

    , PHYSICAL REVIEW A, Vol: 57, Pages: 1944-1956, ISSN: 1050-2947
  • Journal article
    Marangos JP, 1998,

    Topical review electromagnetically induced transparency

    , JOURNAL OF MODERN OPTICS, Vol: 45, Pages: 471-503, ISSN: 0950-0340
  • Journal article
    Paspalakis E, Patel A, Protopapas M, Knight PLet al., 1998,

    Phase control of a two-channel ionization system

    , JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, Vol: 31, Pages: 761-774, ISSN: 0953-4075
  • Journal article
    Paspalakis E, Protopapas M, Knight PL, 1998,

    Time-dependent pulse and frequency effects in population trapping via the continuum

    , JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, Vol: 31, Pages: 775-794, ISSN: 0953-4075
  • Journal article
    Burnett K, Watson JB, Sanpera A, Knight PLet al., 1998,

    Multielectron response to intense laser fields

    , PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, Vol: 356, Pages: 317-328, ISSN: 1364-503X
  • Journal article
    Hutchinson MHR, Ditmire T, Springate E, Tisch JWG, Shao YL, Mason MB, Hay N, Marangos JPet al., 1998,

    High-intensity lasers: interactions with atoms, molecules and clusters

    , PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, Vol: 356, Pages: 297-315, ISSN: 1364-503X
  • Journal article
    Keitel CH, Szymanowski C, Knight PL, Maquet Aet al., 1998,

    Radiative reaction in ultra-intense laser-atom interaction

    , JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, Vol: 31, Pages: L75-L83, ISSN: 0953-4075
  • Journal article
    Tisch JWG, Meyerhofer DD, Ditmire T, Hay N, Mason MB, Hutchinson MHRet al., 1998,

    Measurement of the spatiotemporal evolution of high-order harmonic radiation using chirped laser pulse spectroscopy

    , PHYSICAL REVIEW LETTERS, Vol: 80, Pages: 1204-1207, ISSN: 0031-9007
  • Journal article
    Averbukh V, Moiseyev N, 1998,

    Classical versus quantum harmonic-generation spectrum of a driven anharmonic oscillator in the high-frequency regime

    , PHYSICAL REVIEW A, Vol: 57, Pages: 1345-1354, ISSN: 1050-2947
  • Journal article
    Bose S, Vedral V, Knight PL, 1998,

    Multiparticle generalization of entanglement swapping

    , PHYSICAL REVIEW A, Vol: 57, Pages: 822-829, ISSN: 1050-2947
  • Journal article
    Hinds EA, Boshier MG, Hughes IG, 1998,

    A Magnetic Waveguide for Trapping Cold Atom Gases in 2D

    , Physical Review Letters, ISSN: 0031-9007
  • Journal article
    Plenio MB, Knight PL, 1998,

    The quantum-jump approach to dissipative dynamics in quantum optics

    , REVIEWS OF MODERN PHYSICS, Vol: 70, Pages: 101-144, ISSN: 0034-6861
  • Journal article
    Ditmire T, Springate E, Tisch JWG, Shao YL, Mason MB, Hay N, Marangos JP, Hutchinson MHRet al., 1998,

    Explosion of atomic clusters heated by high-intensity femtosecond laser pulses

    , PHYSICAL REVIEW A, Vol: 57, Pages: 369-382, ISSN: 1050-2947
  • Journal article
    RUDOLPH T, FICEK Z, 1998,

    Interference pattern with a dark center from two atoms driven by a coherent laser field

    , Vol: 58, Pages: 748-751
  • Conference paper
    Miyake Y, Shimomura K, Mills AP, Marangos JP, Nagamine Ket al., 1998,

    Ultra-sensitive detection of hydrogen isotopes by the Lyman-α RIS

    , 9th International Symposium on Resonance Ionization Spectroscopy (RIS-98), Publisher: AMER INST PHYSICS, Pages: 47-52, ISSN: 0094-243X
  • Journal article
    Marangos JP, 1998,

    Measurement of the ground state lamb shift via the two-photon 1'S-2'S transition

    , Physical Review Letters, Vol: 80, Pages: 3475-34IN
  • Conference paper
    Ditmire T, Tisch JWG, Springate E, Mason MB, Hay N, Marangos JP, Hutchinson MHRet al., 1998,

    Explosion of atomic clusters heated by high intensity, femtosecond laser pulses

    , New York, 7th optical-society-of-america conference on applications of high fields and short wavelength sources MAR 20-22, 1997 SANTA FE, NEW MEXICO, Publisher: Plenum Press Div Plenum Publishing Corp, Pages: 123-130
  • Book chapter
    Ivanov MY, Krainov VP, 1998,

    Theory of quantum defect for Rydberg states of alkali atoms

    , Spectroscopy of Autoionizing States of Atoms and Ions, Editors: Safronova
  • Journal article
    Ditmire T, Smith RA, Gumbrell ET, Tisch JWG, Hutchinson MHRet al., 1998,

    Energy deposition and transport dynamics in plasmas produced by intense, short pulse irradiation of atomic clusters

    , Superstrong Fields in Plasmas - First International Conference, Pages: 354-359, ISSN: 0094-243X
  • Conference paper
    Tisch JWG, Ditmire T, Meyerhofer DD, Hay N, Mason MB, Hutchinson MHRet al., 1998,

    Time-resolved imaging of high harmonic radiation using chirped laser pulses

    , 1st International Conference on Superstrong Fields in Plasmas, Publisher: AMER INST PHYSICS, Pages: 366-371, ISSN: 0094-243X
  • Conference paper
    Knight PL, 1998,

    The construction and detection of non-classical states in quantum optics

    , Singapore, 5th wigner symposium AUG 25-29, 1997 VIENNA, AUSTRIA, Publisher: World Scientific Publ Co Pte Ltd, Pages: 409-409
  • Journal article
    Buzek V, Hillery M, Knight PL, 1998,

    Flocks of quantum clones: Multiple copying of qubits

    , FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS, Vol: 46, Pages: 521-533, ISSN: 0015-8208
  • Journal article
    Ivanov MY, Tikhonova OV, Fedorov MV, 1998,

    Semiclassical dynamics of strongly driven systems

    , PHYSICAL REVIEW A, Vol: 58, Pages: R793-R796, ISSN: 1050-2947

    A nonperturbative analytical semiclassical approach describing the interaction of a quantum system with strong oscillating fields is presented, including the limit where the external high-frequency field destroys the classical trajectories of a field-free system. Applied to ionization of a Rydberg atom, our approach allows us to describe the so-called “interference” and “adiabatic” mechanisms of laser-induced stabilization of atomic Rydberg states in a unified way. [S1050-2947(98)50208-9].
  • Journal article
    Matusek DR, Ivanov MY, Wright JS, 1998,

    Selectivity in intense field dissociation

    , CHEMICAL PHYSICS LETTERS, Vol: 284, Pages: 247-253, ISSN: 0009-2614

    Strong laser fields exert forces comparable to, or exceeding, the forces which bind atoms to molecules. We exploit this physics to achieve selectivity in the dissociation of triatomic cations, using a simple, intuitive approach. We propose a class of molecules for which a strong bond can be preferentially dissociated over a weak bond using a strong infrared pulse with very simple pulse parameters. Selectivity is demonstrated for a model system of the type ABC(+). (C) 1998 Elsevier Science B.V.
  • Journal article
    Sakai H, Stapelfeldt H, Constant E, Ivanov MY, Matusek DR, Wright JS, Corkum PBet al., 1998,

    Metastable triply charged diatomic molecules produced with femtosecond pulses

    , PHYSICAL REVIEW LETTERS, Vol: 81, Pages: 2217-2220, ISSN: 0031-9007

    We show that ultrashort pulse strong field multiphoton ionization efficiently produces metastable highly charged molecules such as metastable diatomic trications I-2(3+), Br-2(3+), and Cl-2(3+). The efficiency of stable trication production decreases rapidly with increasing pulse duration. Weak pre- or post-pulse irradiation also prevents efficient production or survival of trications, We propose strong-field femtosecond Raman spectroscopy to determine trication vibrational frequencies.
  • Journal article
    Thachuk M, Ivanov MY, Wardlaw DM, 1998,

    A semiclassical approach to intense-field above-threshold dissociation in the long wavelength limit. II. Conservation principles and coherence in surface hopping

    , JOURNAL OF CHEMICAL PHYSICS, Vol: 109, Pages: 5747-5760, ISSN: 0021-9606

    This paper is a companion to our recently published semiclassical formalism for treating time-dependent Hamiltonians [J. Chem. Phys, 105, 4094 (1996)], which was applied to study the dissociation of diatomic ions in intense laser fields. Here two fundamental issues concerning this formalism are discussed in depth: conservation principles and coherence. For time-dependent Hamiltonians, the conservation principle to apply during a trajectory hop depends upon the physical origin of the electronic transition, with total energy conservation and nuclear momentum conservation representing the two limiting cases. It is shown that a]applying an inappropriate scheme leads to unphysical features in the kinetic energy of the dissociation products. A method is introduced that smoothly bridges the two limiting cases and applies the physically justified conservation scheme at all times. It is also shown that the semiclassical formalism can predict erroneous results if the electronic amplitudes for well-separated hops are added coherently. This is a fundamental problem with the formalism which leads to unphysical results if left unattended. Alternative schemes are introduced for dealing with this problem and their accuracies are assessed. Generalization of the well-known Landau-Zener formula to the time-dependent Hamiltonian case is derived, which allows one to significantly decrease the computational overhead involved with the numerical implementation of the semiclassical method. Finally, we show that in strong-field molecular dissociation a trajectory can ”surf“ a moving avoided crossing. In this case the hopping probability is a sensitive function of the interference between two closely spaced avoided crossing regions. (C) 1998 American Institute of Physics.
  • Journal article
    RUDOLPH T, FREEDHOFF H, FICEK Z, 1998,

    Shift of the subharmonic resonances and suppression of fluorescence in a two-level atom driven by a bichromatic field

    , Vol: 15, Pages: 2325-2330

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