Strong-field ionization of N2: length and velocity gauge strong-field approximation and tunnelling theory TK Kjeldsen, LB Madsen Journal of Physics B: Atomic, Molecular and Optical Physics 37 (10), 2033, 2004 | 161 | 2004 |

Strong-field ionization of diatomic molecules and companion atoms: Strong-field approximation and tunneling theory including nuclear motion TK Kjeldsen, LB Madsen Physical Review A 71 (2), 023411, 2005 | 122 | 2005 |

Multiphoton electron angular distributions from laser-aligned CS 2 molecules V Kumarappan, L Holmegaard, C Martiny, CB Madsen, TK Kjeldsen, ... Physical review letters 100 (9), 093006, 2008 | 113 | 2008 |

Influence of molecular symmetry on strong-field ionization: Studies on ethylene, benzene, fluorobenzene, and chlorofluorobenzene TK Kjeldsen, CZ Bisgaard, LB Madsen, H Stapelfeldt Physical Review A 71 (1), 013418, 2005 | 102 | 2005 |

Extracting continuum information from in time-dependent wave-packet calculations LB Madsen, LAA Nikolopoulos, TK Kjeldsen, J Fernández Physical Review A 76 (6), 063407, 2007 | 90 | 2007 |

Role of symmetry in strong-field ionization of molecules TK Kjeldsen, CZ Bisgaard, LB Madsen, H Stapelfeldt Physical Review A 68 (6), 063407, 2003 | 75 | 2003 |

Solving the -mixing problem for the three-dimensional time-dependent Schrödinger equation by rotations: Application to strong-field ionization of TK Kjeldsen, LAA Nikolopoulos, LB Madsen Physical Review A 75 (6), 063427, 2007 | 71 | 2007 |

*Ab initio* studies of strong-field ionization of arbitrarily oriented moleculesTK Kjeldsen, LB Madsen, JP Hansen Physical Review A 74 (3), 035402, 2006 | 58 | 2006 |

Directional dipole model for subsurface scattering JR Frisvad, T Hachisuka, TK Kjeldsen ACM Transactions on Graphics (TOG) 34 (1), 1-12, 2014 | 54 | 2014 |

Vibrational excitation of diatomic molecular ions in strong field ionization of diatomic molecules TK Kjeldsen, LB Madsen Physical review letters 95 (7), 073004, 2005 | 54 | 2005 |

Quantitative neuroimaging software for clinical assessment of hippocampal volumes on MR imaging J Ahdidan, CA Raji, EA DeYoe, J Mathis, KØ Noe, J Rimestad, ... Journal of Alzheimer's Disease 49 (3), 723-732, 2016 | 41 | 2016 |

Effects of orientation and alignment in high-order harmonic generation and above-threshold ionization CB Madsen, AS Mouritzen, TK Kjeldsen, LB Madsen Physical Review A 76 (3), 035401, 2007 | 32 | 2007 |

Three-dimensional time-dependent Hartree-Fock approach for arbitrarily oriented molecular hydrogen in strong electromagnetic fields LAA Nikolopoulos, TK Kjeldsen, LB Madsen Physical Review A 76 (3), 033402, 2007 | 29 | 2007 |

Comment on “Strong-field ionization of laser-irradiated light homonuclear diatomic molecules: A generalized strong-field approximation–combination of atomic orbitals model” TK Kjeldsen, LB Madsen Physical Review A 73 (4), 047401, 2006 | 27 | 2006 |

Spectral and partial-wave decomposition of time-dependent wave functions on a grid: Photoelectron spectra of H and in electromagnetic fields LAA Nikolopoulos, TK Kjeldsen, LB Madsen Physical Review A 75 (6), 063426, 2007 | 26 | 2007 |

Molecules in intense xuv pulses: Beyond the dipole approximation in linearly and circularly polarized fields M Førre, S Selstø, JP Hansen, TK Kjeldsen, LB Madsen Physical Review A 76 (3), 033415, 2007 | 25 | 2007 |

Strong-field ionization of atoms and molecules: The two-term saddle-point method TK Kjeldsen, LB Madsen Physical Review A 74 (2), 023407, 2006 | 22 | 2006 |

Implementation of synthetic aperture imaging on a hand-held device MC Hemmsen, T Kjeldsen, L Lassen, C Kjær, B Tomov, J Mosegaard, ... 2014 IEEE International Ultrasonics Symposium, 2177-2180, 2014 | 17 | 2014 |

Wave packet dynamics studied by ab initio methods TK Kjeldsen PhD thesis, University of Aarhus, 2007 | 16 | 2007 |

A vector flow imaging method for portable ultrasound using synthetic aperture sequential beamforming T Di Ianni, CAV Hoyos, C Ewertsen, TK Kjeldsen, J Mosegaard, ... IEEE transactions on ultrasonics, ferroelectrics, and frequency control 64 …, 2017 | 13 | 2017 |