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Thomas Legero

0000-0003-0277-3907
physics.opticsphysics.atom-phastro-ph.IMphysics.ins-detquant-phastro-ph.COastro-ph.EPastro-ph.SRhep-phOptical Fibers

On Valency

published · living versions
W_m8dyztp2·v1 · currentpublished
Optical clock network tracks tidal variations of the gravity potential
with Kilian Stahl, Ingo Nosske, Chetan Vishwakarma, Tim Lücke +39
1 version

Preprints & journals

42 papers in the corpus · 2000–2026
Laser with 7×10−187\times10^{-18} stability2610.30532v1 · Ben Lewis, Zoey Z. Hu, Dahyeon Lee et al.2026 · 0 citationsarXiv
The Calibration System of the iLocater Spectrograph2607.27330v1 · Sai Vidyud Senthil Nathan, Jonathan Crass, Julia E. Brady et al.2026 · 0 citationsarXiv
Commissioning and on-sky performance verification of iLocater2607.27332v1 · Marshall C. Johnson, Marcelo Tala Pinto, Jonathan Crass et al.2026 · 0 citationsarXiv
Laboratory characterization of iLocater2607.27356v1 · Marcelo Tala Pinto, Marshall C. Johnson, Julia Brady et al.2026 · 0 citationsarXiv
Photo-birefringent effects in crystalline AlGaAs mirror coatings.42596145 · Ma, Chun Yu, Yu, Jialiang, Legero, Thomas et al.2026 · 1 citationOptics express. 2026;34(14):25456-25468
Laser stabilized to a room temperature cavity with AlGaAs coatings reaching 4.2×10−174.2 \times 10^{-17} fractional frequency instability2607.01406v1 · Chun Yu Ma, Jialiang Yu, Steffen Sauer et al.2026 · 0 citationsarXiv
Cordierite-based optical resonators with extremely low thermal expansion2603.24247v2 · Nico Wagner, Thomas Legero, Stefanie Kroker2026 · 0 citationsarXiv
Frequency stability of 2.5×10−172.5\times10^{-17} in a Si cavity with AlGaAs crystalline mirrors2509.13503v1 · Dahyeon Lee, Zoey Z. Hu, Ben Lewis et al.2025 · 1 citationarXiv
Coordinated international comparisons between optical clocks connected via fiber and satellite links2505.06763v1 · Thomas Lindvall, Marco Pizzocaro, Rachel M. Godun et al.2025 · 17 citationsOptica 12, 843 (2025)
Guidelines for designs for ultrastable laser with 10−17\mathbf{10^{-17}} fractional frequency instability2504.06213v1 · Joannes Barbarat, Erik Benkler, Marcin Bober et al.2025 · 3 citationsarXiv
Towards a sub-kelvin cryogenic Fabry-Perot silicon cavity2406.08256v1 · Joannes Barbarat, Jonathan Gillot, Jacques Millo et al.2024 · 3 citationsarXiv
Ultrastable lasers: investigations of crystalline mirrors and closed cycle cooling at 124 K2404.02647v2 · C. Y. Ma, J. Yu, T. Legero et al.2024 · 7 citationsJ. Phys.: Conf. Ser. 2889, 012055 (2024)
Substrate-transferred GaAs/AlGaAs crystalline coatings for gravitational-wave detectors: A review of the state of the art2301.02687v1 · G. D. Cole, S. Ballmer, G. Billingsley et al.2023 · 25 citationsarXiv
Frequency stability of cryogenic silicon cavities with semiconductor crystalline coatings2210.14881v1 · Dhruv Kedar, Jialiang Yu, Eric Oelker et al.2022 · 62 citationsarXiv
Excess noise and photo-induced effects in highly reflective crystalline mirror coatings2210.15671v2 · Jialiang Yu, Dhruv Kedar, Sebastian Hafner et al.2022 · 39 citationsarXiv
Rubidium transitions as wavelength reference for astronomical Doppler spectrographs2003.08205v1 · Dmytro Rogozin, Tobias Feger, Christian Schwab et al.2020 · 0 citationsarXiv
Demonstration of a Timescale Based on a Stable Optical Carrier.31702265 · Milner, William R, Robinson, John M, Kennedy, Colin J et al.2019 · 82 citationsPhysical review letters. 2019;123(17):173201
Search for transient variations of the fine structure constant and dark matter using fiber-linked optical atomic clocks1907.02661v2 · B. M. Roberts, P. Delva, A. Al-Masoudi et al.2019 · 113 citationsNew J. Phys. 22, 093010 (2020)
Guidelines for developing optical clocks with 10−1810^{-18} fractional frequency uncertainty1906.11495v2 · Moustafa Abdel-Hafiz, Piotr Ablewski, Ali Al-Masoudi et al.2019 · 14 citationsarXiv
Optical clock intercomparison with 6×10−196\times 10^{-19} precision in one hour1902.02741v1 · E. Oelker, R. B. Hutson, C. J. Kennedy et al.2019 · 473 citationsNature Photonics 13, 714-719 (2019)
Crystalline optical cavity at 4 K with thermal noise limited instability and ultralow drift1812.03842v1 · John M. Robinson, Eric Oelker, William R. Milner et al.2018 · 174 citationsarXiv
Ultrastable Silicon Cavity in a Continuously Operating Closed-Cycle Cryostat at 4 K.29286721 · Zhang, W, Robinson, J M, Sonderhouse, L et al.2018 · 131 citationsPhysical review letters. 2017;119(24):243601
1.5  μm Lasers with Sub-10 mHz Linewidth.28707932 · Matei, D G, Legero, T, Häfner, S et al.2018 · 584 citationsPhysical review letters. 2017;118(26):263202
A clock network for geodesy and fundamental science.27503795 · Lisdat, C, Grosche, G, Quintin, N et al.2018 · 463 citationsNature communications. 2016;7:12443
8  ×  10⁻¹⁷ fractional laser frequency instability with a long room-temperature cavity.25927798 · Häfner, Sebastian, Falke, Stephan, Grebing, Christian et al.2016 · 286 citationsOptics letters. 2015;40(9):2112-5
A compact, robust, and transportable ultra-stable laser with a fractional frequency instability of 1 × 10(-15.).25430098 · Chen, Qun-Feng, Nevsky, Alexander, Cardace, Marco et al.2015 · 69 citationsThe Review of scientific instruments. 2014;85(11):113107
Ultrastable laser with average fractional frequency drift rate below 5 × 10⁻¹⁹/s.25166084 · Hagemann, Christian, Grebing, Christian, Lisdat, Christian et al.2015 · 78 citationsOptics letters. 2014;39(17):5102-5
Reduction of residual amplitude modulation to 1 × 10⁻⁶ for frequency modulation and laser stabilization.24686654 · Zhang, W, Martin, M J, Benko, C et al.2014 · 183 citationsOptics letters. 2014;39(7):1980-3
Precision measurement of the hydrogen 1S-2S frequency via a 920-km fiber link.25167479 · Matveev, Arthur, Parthey, Christian G, Predehl, Katharina et al.2015 · 228 citationsPhysical review letters. 2013;110(23):230801
A 920-kilometer optical fiber link for frequency metrology at the 19th decimal place.22539714 · Predehl, K, Grosche, G, Raupach, S M F et al.2012 · 544 citationsScience (New York, N.Y.). 2012;336(6080):441-4
Thermal noise in optical cavities revisited1111.4950v1 · Thomas Kessler, Thomas Legero, Uwe Sterr2011 · 130 citationsJOSA B, Vol. 29, Issue 1, pp. 178-184 (2012)
Demonstration of a Transportable 1 Hz-Linewidth Laser1010.2685v2 · Stefan Vogt, Christian Lisdat, Thomas Legero et al.2010 · 61 citationsarXiv
Long-distance remote comparison of ultrastable optical frequencies with 10(-15) instability in fractions of a second.20941043 · Pape, A, Terra, O, Friebe, J et al.2011 · 27 citationsOptics express. 2010;18(20):21477-83
Tuning the Thermal Expansion Properties of Optical Reference Cavities with Fused Silica Mirrors1002.2070v1 · Thomas Legero, Thomas Kessler, Uwe Sterr2010 · 147 citationsJOSA B, Vol. 27, Issue 5, pp. 914-919 (2010)
Phase-coherent frequency comparison of optical clocks using a telecommunication fiber link.20040443 · Schnatz, Harald, Terra, Osama, Predehl, Katharina et al.2010 · 19 citationsIEEE transactions on ultrasonics, ferroelectrics, and frequency control. 2010;57(1):175-81
Phase- coherent comparison of two optical frequency standards over 146 km using a telecommunication fiber link0906.3476v1 · Osama Terra, Gesine Grosche, Katharina Predehl et al.2009 · 61 citationsarXiv
Interrogation laser for a strontium lattice clock0809.5140v1 · T. Legero, Ch. Lisdat, J. S. R. Vellore Winfred et al.2008 · 19 citationsarXiv
Characterization of single photons using two-photon interferencequant-ph/0512023v1 · T. Legero, T. Wilk, A. Kuhn et al.2005 · 57 citationsAdv. At. Mol. Opt. Phys., 53:253, 2006
Time-resolved and state-selective detection of single freely falling atomsquant-ph/0512006v2 · Torsten Bondo, Markus Hennrich, Thomas Legero et al.2005 · 16 citationsOptics Communications 264 (2006) 271-277
Quantum beat of two single photons.15324220 · Legero, Thomas, Wilk, Tatjana, Hennrich, Markus et al.2004 · 289 citationsPhysical review letters. 2004;93(7):070503
Counter-Intuitive Vacuum-Stimulated Raman Scatteringquant-ph/0208188v1 · Markus Hennrich, Thomas Legero, Axel Kuhn et al.2002 · 9 citationsJ. Mod. Opt. 50, 936-942 (2003)
Vacuum-stimulated raman scattering based on adiabatic passage in a high-finesse optical cavity11102139 · Hennrich, Legero, Kuhn et al.2019 · 248 citationsPhysical review letters. 2000;85(23):4872-5
Career total: 114 works. 42 are in this corpus.

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