Enhancement of the performance of a fiber-based frequency comb by referencing to an acetylene-stabilized fiber laser.

Autor: Talvard T, Westergaard PG, DePalatis MV, Mortensen NF, Drewsen M, Gøth B, Hald J

Publikováno v: Optics express [Opt Express] 2017 Feb 06; Vol. 25 (3), pp. 2259-2269.

Compact, CO 2 -stabilized tuneable laser at 2.05 microns.

Autor: Westergaard PG, Thomsen JW, Henriksen MR, Michieletto M, Triches M, Lyngsø JK, Hald J

Publikováno v: Optics express [Opt Express] 2016 Mar 07; Vol. 24 (5), pp. 4872-4880.

Observation of motion-dependent nonlinear dispersion with narrow-linewidth atoms in an optical cavity.

Autor: Westergaard PG; Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, 2100 Copenhagen, Denmark.; Danish Fundamental Metrology, Matematiktorvet 307, 1 sal, 2800 Kongens Lyngby, Denmark., Christensen BT; Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, 2100 Copenhagen, Denmark., Tieri D; JILA, National Institute of Standards and Technology and University of Colorado, Boulder, Colorado 80309-0440, USA., Matin R; Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, 2100 Copenhagen, Denmark., Cooper J; JILA, National Institute of Standards and Technology and University of Colorado, Boulder, Colorado 80309-0440, USA., Holland M; JILA, National Institute of Standards and Technology and University of Colorado, Boulder, Colorado 80309-0440, USA., Ye J; JILA, National Institute of Standards and Technology and University of Colorado, Boulder, Colorado 80309-0440, USA., Thomsen JW; Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, 2100 Copenhagen, Denmark.

Publikováno v: Physical review letters [Phys Rev Lett] 2015 Mar 06; Vol. 114 (9), pp. 093002. Date of Electronic Publication: 2015 Mar 04.

Experimental determination of the ²⁴Mg I (3s3p)³P₂ lifetime.

Autor: Jensen BB; The Niels Bohr Institute, Universitetsparken 5, 2100 Copenhagen, Denmark., Ming H, Westergaard PG, Gunnarsson K, Madsen MH, Brusch A, Hald J, Thomsen JW

Publikováno v: Physical review letters [Phys Rev Lett] 2011 Sep 09; Vol. 107 (11), pp. 113001. Date of Electronic Publication: 2011 Sep 07.

Accuracy evaluation of an optical lattice clock with bosonic atoms.

Autor: Baillard X; LNE-SYRTE, Observatoire de Paris, 61, avenue de l'Observatoire, 75014 Paris, France. xavier.baillard@obspm.fr, Fouché M, Le Targat R, Westergaard PG, Lecallier A, Le Coq Y, Rovera GD, Bize S, Lemonde P

Publikováno v: Optics letters [Opt Lett] 2007 Jul 01; Vol. 32 (13), pp. 1812-4.