Publications of Thomas Udem

Amit, O.; Taray, D.; Wirthl, V.; Weis , V.; Syed , M. W.; Ozawa, A.; Weitenberg, J.; Karshenboim, S. G.; Walraven, J. T. M.; Maisenbacher, L. et al.; Pohl, R.; Burkley, Z.; Schmid, F.; Hänsch, T. W.; Yost, D. C.; Udem, T.: Towards trapping of hydrogen atoms for computable optical clock applications. Physical Review A 112, 033101 (2025)

Wissenberg, S. H.; Weitenberg, J.; Moreno, J.; Hartung, H.; Möslein, M.; Burkhardt, T.; Teschler, T.; Schmid, F.; Udem, T.; Hoffmann, H.-D. et al.; Thirolf, P. G.; Hänsch, T. W.; Ozawa, A.; Haefner, C. L.: Noncollinear enhancement resonator with intrinsic pulse synchronization and alignment employing wedge mirrors. Physical Review Research 7, 023071 (2025)

Bieringer , M.; Weitenberg, J.; Udem, T.; Ozawa, A.: Astigmatic thermal lensing due to surface bulging in Yb:KYW laser crystals. Optical Materials Express 14, pp. 2527 - 2541 (2024)

Grotti, J.; Nosske, I.; Koller, S. B.; Herbers, S.; Denker, H.; Timmen, L.; Vishnyakova, G.; Waterholter, T.; Kuhl, A.; Koke, S. et al.; Benkler, E.; Grosche, G.; Giunta, M.; Maisenbacher, L.; Dörscher, S.; Schwarz, R.; Al-Masoudi, A.; Hänsch, T. W.; Matveev, A. N.; Udem, T.; Holzwarth, R.; Lisdat, C.: Long-distance chronometric leveling with a portable optical clock. Physical Review Applied 21 (6), L061001 (2024)

Schmid, F.; Moreno, J.; Weitenberg, J.; Russbüldt, P.; Hänsch, T. W.; Udem, T.; Ozawa, A.: An ultra-stable high-power optical frequency comb. APL Photonics 9, 026105 (2024)

Canella , F.; Weitenberg, J.; Thariq, M.; Schmid, F.; Dwivedi , P.; Galzerano, G.; Hänsch, T. W.; Udem, T.; Ozawa, A.: Low-repetition-rate optical frequency comb. Optica 11, pp. 1 - 9 (2024)

Moreno, J.; Schmid, F.; Weitenberg, J.; Karshenboim, S. G.; Hänsch, T. W.; Udem, T.; Ozawa, A.: Toward XUV frequency comb spectroscopy of the 1 S-2 S transition in He⁺. European Physical Journal D: Atomic, Molecular, Optical and Plasma Physics 77, 67 (2023)

Schmid, F.; Weitenberg, J.; Moreno , J.; Hänsch, T. W.; Udem, T.; Ozawa, A.: Number-resolved detection of dark ions in Coulomb crystals. Physical Review A 106 (4), L041101 (2022)

Ozawa, A.; Udem, T.: Very large bandwidth lasers. Nature Photonics 15, pp. 247 - 249 (2021)

Wirthl, V.; Maisenbacher, L.; Weitenberg, J.; Hertlein, A.; Grinin, A.; Matveev, A. N.; Pohl, R.; Hänsch, T. W.; Udem, T.: Improved active fiber-based retroreflector with intensity stabilization and a polarization monitor for the near UV. Optics Express 29 (5), pp. 7024 - 7048 (2021)

Zhao, F.; Lo Curto, G.; Pasquini, L.; Gonzalez Hernandez I, J.; De Medeiros, J. R.; Canto Martins, B. L.; Leao, I. C.; Rebolo, R.; Suarez Mascareno, A.; Esposito, M. et al.; Manescau, A.; Steinmetz, T.; Udem, T.; Probst, R.; Holzwarth, R.; Zhao, G.: Measuring and characterizing the line profile of HARPS with a laser frequency comb. Astrophysics & Astronomy 645, A23 (2021)

Grinin, A.; Matveev, A. N.; Yost, D. C.; Maisenbacher, L.; Wirthl , V.; Pohl, R.; Hänsch, T. W.; Udem, T.: Two-photon frequency comb spectroscopy of atomic hydrogen. Science 370 (6520), pp. 1061 - 1066 (2020)

Hernández, J. I. G.; Rebolo, R.; Pasquini, L.; Curto, G. L.; Molaro, P.; Caffau, E.; Ludwig, H.-G.; Steffen, M.; Esposito, M.; Mascareño, A. S. et al.; Toledo-Padrón, B.; Probst, R. A.; Hänsch, T. W.; Holzwarth, R.; Manescau, A.; Steinmetz, T.; Udem, T.; Wilken, T.: The Solar Gravitational Redshift from HARPS-LFC Moon Spectra A Test of the General Theory of Realitivity*^,**. Astronomy and Astrophysics 643, A146 (2020)

Diddams, S. A.; Vahala, K.; Udem, T.: Optical frequency combs: Coherently uniting the electromagnetic spectrum. Science 369 (6501), p. 267 - 267 (2020)

Probst, R. A.; Milakovic, D.; Toledo-Padron, B.; Lo Curto, G.; Avila, G.; Brucalassi, A.; Canto Martins, B. L.; Leao, I. d. C.; Esposito, M.; Gonzalez Hernandez I, J. et al.; Grupp, F.; Hänsch, T. W.; Kellermann, H.; Kerber, F.; Mandel, O.; Manescau, A.; Pozna, E.; Rebolo, R.; de Medeiros, J. R.; Steinmetz, T.; Suarez Mascareno, A.; Udem, T.; Urrutia, J.; Wu , Y.; Pasquini, L.; Holzwarth, R.: A crucial test for astronomical spectrograph calibration with frequency combs. Nature astronomy 4, pp. 603 - 608 (2020)

Giunta, M.; Hänsel, W.; Fischer, M.; Lezius, M.; Udem, T.; Holzwarth, R.: Real-time phase tracking for wide-band optical frequency measurements at the 20th decimal place. Nature Photonics; Nature Publ. Group , London [u.a.] 14 (1), pp. 44 - 49 (2020)

Schmid, F.; Weitenberg, J.; Hänsch, T. W.; Udem, T.; Ozawa, A.: Simple phase noise measurement scheme for cavity-stabilized laser systems. Optics Letters 44 (11), pp. 2709 - 2712 (2019)

Udem, T.; Maisenbacher, L.; Matveev, A. N.; Andreev, V.; Grinin, A.; Beyer, A.; Kolachevsky, N.; Pohl, R.; Yost, D. C.; Hänsch, T. W.: Quantum Interference Line Shifts of Broad Dipole-Allowed Transitions. Annalen der Physik 531 (5), 1900044 (2019)

Ann , B.-M.; Schmid, F.; Krause, J.; Hänsch, T. W.; Udem, T.; Ozawa, A.: Motional resonances of three-dimensional dual-species Coulomb crystals. Journal of Physics B: Atomic, Molecular and Optical Physics 52 (3), 035002 (2019)

Ozawa, A.; Davila-Rodriguez, J.; Hänsch, T. W.; Udem, T.: Quantum Zeno Effect assisted Spectroscopy of a single trapped Ion. Scientific Reports 8, 10643 (2018)