Mesoscopic non-classical atomic states for quantum information and metrology,
J. Appel, J. Renema, D. Oblak, A. Louchet-Chauvet, N. Kjærgaard & E. Polzik,
Optics InfoBase Conference Papers (2010)
[SCOPUS]
Entanglement-assisted atomic clock beyond the projection noise limit,
A. Louchet-Chauvet, J. Appel, J. J. Renema, D. Oblak, N. Kjærgaard & E. S. Polzik,
New Journal of Physics 12, 065032 (2010)
[JOURNAL (Open Access)]
Mesoscopic atomic entanglement for precision measurements beyond the standard quantum limit,
J. Appel, P. J. Windpassinger, D. Oblak, U. B. Hoff, N. Kjærgaard & E. S. Polzik,
Proceedings of the National Academy of Sciences of the United States of America 106, 10960-10965 (2009)
[JOURNAL (Open Access) ]
Ultra low-noise differential ac-coupled photodetector for sensitive pulse detection applications,
P. J. Windpassinger, M. Kubasik, M. Koschorreck, A. Boisen, N. Kjærgaard, E.S. Polzik & J. H. Müller,
Measurement Science and Technology 20, 055301 (2009)
[JOURNAL]
Squeezing of atomic quantum projection noise,
P. J. Windpassinger, D. Oblak, U. B. Hoff, A. Louchet, J. Appel, N. Kjærgaard & E. S. Polzik,
Journal of Modern Optics 56, 1993-1998 (2009)
[JOURNAL]
Quantum interface between light and atomic ensembles,
H. Krauter, J. F. Sherson, K. Jensen, T. Fernholz, J. S. Neergaard-Nielsen, B. M. Nielsen, D. Oblak, P. Windpassinger, N. Kjærgaard, A. J. Hilliard, C. Olausson, J. H. Müller & E. S. Polzik,
Proceedings of the 18th International Conference on Laser Spectroscopy, ICOLS 2007 113-124 (2008)
[SCOPUS]
Echo spectroscopy of atomic dynamics in a Gaussian trap via phase imprints,
D. Oblak, J. Appel, P. J. Windpassinger, U. Hoff, N. Kjærgaard & E. S. Polzik,
European Physical Journal D 50, 67-73 (2008)
[JOURNAL]
Inhomogeneous light shift effects on atomic quantum state evolution in non-destructive measurements,
P. J. Windpassinger, D. Oblak, U. B. Hoff, J. Appel, N. Kjærgaard & E. S. Polzik,
New Journal of Physics 10, 053032 (2008)
[JOURNAL (Open Access)]
Nondestructive probing of rabi oscillations on the cesium clock transition near the standard quantum limit,
P. J. Windpassinger, D. Oblak, P. G. Petrov, M. Kubasik, M. Saffman, C. G. Alzar, J. Appel, J. H. Müller, N. Kjærgaard & E. S. Polzik,
Physical Review Letters 100, 103601 (2008)
[JOURNAL]
Nondestructive interferometric characterization of an optical dipole trap,
P. G. Petrov, D. Oblak, C. G. Alzar, N. Kjærgaard & E. S. Polzik,
Physical Review A 75, 033803 (2007)
[JOURNAL]
Design and construction of a linear Paul trap for the study of crystalline beams,
N. Kjærgaard, K. Mølhave & M. Drewsen,
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 540, 209-214 (2005)
[JOURNAL]
An external-cavity laser diode at 635 nm for laser display applications,
E. Samsøe, N. Kjærgaard, H. Lausen, P. E. Andersen & P. M. Petersen,
Optics Communications 245, 333-339 (2005)
[JOURNAL ]
Dynamically excited single-component ion Coulomb crystals in linear Paul traps,
M. Drewsen, A. Mortensen, J. Lindballe, K. Mølhave & N. Kjærgaard,
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 532, 237-240 (2004)
[JOURNAL]
Non-stationary Coulomb crystals in linear Paul traps,
M. Drewsen, I. S. Jensen, N. Kjærgaard, J. Lindballe, A. Mortensen, K. Mølhave & D. Voigt,
Journal of Physics B: Atomic, Molecular and Optical Physics 36, 525-532 (2003)
[JOURNAL]
Observation of a Structural Transition for Coulomb Crystals in a Linear Paul Trap,
N. Kjærgaard & M. Drewsen,
Physical Review Letters 91, 950021-950024 (2003)
[JOURNAL]
Stability of Coulomb crystals in a linear Paul trap with storage-ring-like confinement,
N. Kjærgaard, K. Mølhave & M. Drewsen,
Physical Review E 66, 015401 (2002)
[JOURNAL]
Structural properties of two-component Coulomb crystals in linear Paul traps,
L. Hornekær, N. Kjærgaard, A. Thommesen & M. Drewsen,
Physical Review Letters 86, 1994-1997 (2001)
JOURNAL
Crystalline beam emulations in a pulse-excited linear Paul trap,
N. Kjærgaard & M. Drewsen,
Physics of Plasmas 8, 1371-1375 (2001)
JOURNAL]
Recent results from laser cooling experiments in ASTRID – real-time imaging of ion beams,
N. Kjærgaard, S. Aggerholm, P. Bowe, L. Hornekær, N. Madsen, J. Nielsen, J. Schiffer, L. Siegfried & J. Hangst,
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 441, 196-202 (2000)
[JOURNAL]
Isotope selective loading of an ion trap using resonance-enhanced two-photon ionization,
N. Kjærgaard, L. Hornekær, A. M. Thommesen, Z. Videsen & M. Drewsen,
Applied Physics B: Lasers and Optics 71, 207-210 (2000)
[JOURNAL]
Density distribution in laser-cooled bunched beams,
N. Madsen, P. Bowe, M. Drewsen, L. H. Hornekær, N. Kjærgaard, A. Labrador, J. S. Nielsen, J. P. Schiffer, P. Shi & J. S. Hangst,
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 441, 203-208 (2000)
[JOURNAL]
Measurements on photo-ionization of 3s3p 1P1 magnesium atoms,
D. Madsen, S. Balslev, M. Drewsen, N. Kjærgaard, Z. Videsen & J. Thomsen,
Journal of Physics B: Atomic, Molecular and Optical Physics 33, 4981-4988 (2000)
[JOURNAL]
Tapered laser cooling of stored coasting ion beams,
N. Kjærgaard & M. Drewsen,
Physics Letters A 260, 507-511 (1999)
[JOURNAL]
Density Limitations in a Stored Laser-Cooled Ion Beam,
N. Madsen, P. Bowe, M. Drewsen, L. H. Hornekær, N. Kjærgaard, A. Labrador, J. S. Nielsen, J. P. Schiffer, P. Shi & J. S. Hangst,
Physical Review Letters 83, 4301-4304 (1999)
[JOURNAL]