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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 2020 (2020)

Giunta, M.; Fischer, M.; Hänsel, W.; Steinmetz, T.; Lessing, M.; Holzberger, S.; Cleff, C.; Hänsch, T. W.; Mei, M.; Holzwarth, R.: 20 Years and 20 Decimal Digits: A Journey With Optical Frequency Combs. IEEE Photonics Technology Letters 31 (23), pp. 1898 - 1901 (2019)

Gebhardt , C.; Förg, M.; Yamaguchi, H.; Bilgin, I.; Mohite, A. D.; Gies, C.; Florian, M.; Hartmann, M.; Hänsch, T. W.; Högele, A. et al.; Hunger, D.: Polariton hyperspectral imaging of two-dimensional semiconductor crystals. Scientific Reports 9, 13756 (2019)

Picqué, N.; Hänsch, T. W.: Mid-IR Spectroscopic Sensing. Optics and Photonics News 30 (6), pp. 26 - 33 (2019)

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)

Picqué, N.; Hänsch, T. W.: Frequency comb spectroscopy. Nature Photonics 13 (3), pp. 146 - 157 (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)

Chen, Z.; Hänsch, T. W.; Picqué, N.: Mid-infrared feed-forward dual-comb spectroscopy. Proceedings of the National Academy of Sciences of the United States of America 116 (9), pp. 3454 - 3459 (2019)

Casabone, B.; Benedikter , J.; Hümmer, T.; Oehl, F.; de Lima, K. O.; Hänsch, T. W.; Ferrier, A.; Goldner, P.; de Riedmatten, H.; Hunger, D.: Cavity-enhanced spectroscopy of a few-ion ensemble in Eu³⁺:Y₂O₃. New Journal of Physics 20, 095006 (2018)

Chen, Z.; Yan, M.; Hänsch, T. W.; Picqué, N.: A phase-stable dual-comb interferometer. Nature Communications 9, 3035 (2018)

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)

Monteiro, C. M. B.; Amaro, F. D.; Sousa, M. S.; Abdou-Ahmed, M.; Amaro, P.; Biraben, F.; Chen, T.; Covita, D. S.; Dax, A. J.; Diepold, M. et al.; Fernandes, L. M. P.; Franke, B.; Galtier, S.; Gouvea, A. L.; Götzfried, J.; Graf, T.; Hänsch, T. W.; Hildebrandt, M.; Indelicato, P.; Julien, L.; Kirch, K.; Knecht, A.; Kottmann, F.; Krauth, J. J.; Liu, Y.; Machado, J.; Mulhauser, F.; Naar, B.; Nebel, T.; Nez, F.; Pohl, R.; Santos, J. P.; dos Santos, J. M. F.; Schuhmann, K.; Szabo, C. I.; Taqqu, D.; Veloso, J. F. C. A.; Antognini, A.: On the double peak structure of avalanche photodiode response to monoenergetic x-rays at various temperatures and bias voltages. Journal of Instrumentation 13, C01033 (2018)

Meek , S. A.; Hipke, A.; Guelachvili, G.; Hänsch, T. W.; Picqué, N.: Doppler-free Fourier transform spectroscopy. Optics Letters 43 (1), pp. 162 - 165 (2018)

Yan, M.; Luo, P.-L.; Iwakuni, K.; Millot, G.; Hänsch, T. W.; Picqué, N.: Mid-infrared dual-comb spectroscopy with electro-optic modulators. Light: Science & Applications 6, e17076 (2017)

Beyer, A.; Maisenbacher, L.; Matveev, A. N.; Pohl, R.; Khabarova, K.; Grinin, A.; Lamour, T.; Yost, D. C.; Hänsch, T. W.; Kolachevsky, N. et al.; Udem, T.: The Rydberg constant and proton size from atomic hydrogen. Science 358 (6359), pp. 79 - 85 (2017)

Weitenberg, J.; Vernaleken, A.; Schulte, J.; Ozawa, A.; Sartorius, T.; Pervak, V.; Hoffmann, H.-D.; Udem, T.; Russbüldt, P.; Hänsch, T. W.: Multi-pass-cell-based nonlinear pulse compression to 115 fs at 7.5 µJ pulse energy and 300 W average power. Optics Express 25 (17), pp. 20502 - 20510 (2017)

Maurer, P.; Prat-Camps, J.; Cirac, J. I.; Hänsch, T. W.; Romero-Isart, O.: Ultrafocused Electromagnetic Field Pulses with a Hollow Cylindrical Waveguide. Physical Review Letters 119 (4), 043904 (2017)

Ozawa, A.; Davila-Rodriguez, J.; Bounds, J. R.; Schüssler, H. A.; Hänsch, T. W.; Udem, T.: Single ion fluorescence excited with a single mode of an UV frequency comb. Nature Communications 8, 44 (2017)

Pohl, R.; Nez, F.; Udem, T.; Antognini, A.; Beyer, A.; Fleurbaey, H.; Grinin, A.; Hänsch, T. W.; Julien, L.; Kottmann, F. et al.; Krauth, J. J.; Maisenbacher, L.; Matveev, A.; Biraben, F.: Deuteron charge radius and Rydberg constant from spectroscopy data in atomic deuterium. Metrologia 54 (2), pp. L1 - L10 (2017)