Udem, T.; Holzwarth, R.; Hänsch, T. W.: Femtosecond optical frequency combs. European Physical Journal - Special Topics 172, pp. 69 - 79 (2009)

Kolachevsky, N.; Matveev, A.; Alnis, J.; Parthey, C. G.; Karshenboim, S. G.; Hänsch, T. W.: Measurement of the 2S Hyperfine Interval in Atomic Hydrogen. Physical Review Letters 102 (21), 213002 (2009)

Peters, E.; Diddams, S. A.; Fendel, P.; Reinhardt, S.; Hänsch, T. W.; Udem, T.: A deep-UV optical frequency comb at 205 nm. Optics Express 17 (11), pp. 9183 - 9190 (2009)

Herrmann, M.; Haas, M.; Jentschura, U. D.; Kottmann, F.; Leibfried, D.; Saathoff, G.; Gohle, C.; Ozawa, A.; Batteiger, V.; Knünz, S. et al.; Kolachevsky, N.; Schüssler, H. A.; Hänsch, T. W.; Udem, T.: Feasibility of coherent xuv spectroscopy on the 1S-2S transition in singly ionized helium. Physical Review A 79 (5), 052505 (2009)

Labzowsky, L.; Schedrin, G.; Solovyev, D.; Chernovskaya, E.; Plunien, G.; Karshenboim, S.: Nonresonant corrections for the optical resonance frequency measurements in the hydrogen atom. Physical Review A 79 (5), 052506 (2009)

Wittmann, T.; Horváth, B.; Helml, W.; Schätzel, M. G.; Gu, X.; Cavalieri, A. L.; Paulus, G. G.; Kienberger, R.: Single-shot carrier-envelope phase measurement of few-cycle laser pulses. Nature Physics 5 (5), pp. 357 - 362 (2009)

Paulus, G. G.; Stania, G.: Attosecond Quantum Stroboscope. ChemPhysChem 10 (6), pp. 875 - 877 (2009)

Hommelhoff, P.; Kealhofer, C.; Kasevich, M.A.: Reaching the resolved tunnel regime for a femtosecond oscillator driven field emission electron source. Laser Physics 19, pp. 736 - 738 (2009)

Hommelhoff, P.; Kealhofer, C.; Aghajani-Talesh, A.; Sortais, Y. R. P.; Foreman, S. M.; Kasevich, M. A.: Extreme localization of electrons in space and time. Ultramicroscopy 109 (5), pp. 423 - 429 (2009)

Li, Y.; Treutlein, P.; Reichel, J.; Sinatra, A.: Spin squeezing in a bimodal condensate: spatial dynamics and particle losses. European Physical Journal B 68 (3), pp. 365 - 381 (2009)

Schmid, C.; Kiesel, N.; Weber, U. K.; Ursin, R.; Zeilinger, A.; Weinfurter, H.: Quantum teleportation and entanglement swapping with linear optics logic gates. New Journal of Physics 11, 033008 (2009)

Ivanov, V. G.; Karshenboim, S. G.: Recoil correction to the decay rate of 2p states in hydrogenlike atoms. Physical Review A 79 (3), 032518 (2009)

Miaja-Avila, L.; Yin, J.; Backus, S.; Saathoff, G.; Aeschlimann, M.; Murnane, M. M.; Kapteyn, H. C.: Ultrafast studies of electronic processes at surfaces using the laser-assisted photoelectric effect with long-wavelength dressing light. Physical Review A 79 (3), 030901 (2009)

Bastin, T.; Thiel, C.; v. Zanthier, J.; Lamata, L.; Solano, E.; Agarwal, G. S.: Operational Determination of Multiqubit Entanglement Classes via Tuning of Local Operations. Physical Review Letters 102 (5), 053601 (2009)

Hundertmark, H.; Rammler, S.; Wilken, T.; Holzwarth, R.; Hänsch, T. W.; Russell, P. S. J.: Octave-spanning supercontinuum generated in SF6-glass PCF by a 1060 nm mode-locked fibre laser delivering 20 pJ per pulse. Optics Express 17 (3), pp. 1919 - 1924 (2009)

Wieczorek, W.; Kiesel, N.; Schmid, C.; Weinfurter, H.: Multiqubit entanglement engineering via projective measurements. Physical Review A 79 (2), 022311 (2009)

Flitney, A. P.; Schlosshauer, M.; Schmid, C.; Laskowski, W.; Hollenberg, L. C. L.: Equivalence between Bell inequalities and quantum minority games. Physics Letters A 373 (5), pp. 521 - 524 (2009)

van Buuren, L. D.; Sommer, C.; Motsch, M.; Pohle, S.; Schenk, M.; Bayerl, J.; Pinkse, P. W. H.; Rempe, G.: Electrostatic Extraction of Cold Molecules from a Cryogenic Reservoir. Physical Review Letters 102 (3), 033001 (2009)

Voigt, A. C.; Taglieber, M.; Costa, L.; Aoki, T.; Wieser, W.; Hänsch, T. W.; Dieckmann, K.: Ultracold Heteronuclear Fermi-Fermi Molecules. Physical Review Letters 102 (2), 020405 (2009)

Herrmann, M.; Batteiger, V.; Knünz, S.; Saathoff, G.; Udem, T.; Hänsch, T. W.: Frequency Metrology on Single Trapped Ions in the Weak Binding Limit: The 3s_1/2-3p_3/2 Transition in ²⁴Mg⁺. Physical Review Letters 102 (1), 013006 (2009)