Search Results - "Sterr, U"

A sub-40-mHz-linewidth laser based on a silicon single-crystal optical cavity by Kessler, T., Hagemann, C., Grebing, C., Legero, T., Sterr, U., Riehle, F., Martin, M. J., Chen, L., Ye, J.

“…State-of-the-art laser frequency stabilization by high-finesse optical cavities is limited fundamentally by thermal noise-induced cavity length fluctuations…”
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1.5  μm Lasers with Sub-10 mHz Linewidth by Matei, D G, Legero, T, Häfner, S, Grebing, C, Weyrich, R, Zhang, W, Sonderhouse, L, Robinson, J M, Ye, J, Riehle, F, Sterr, U

“…We report on two ultrastable lasers each stabilized to independent silicon Fabry-Pérot cavities operated at 124 K. The fractional frequency instability of each…”
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A clock network for geodesy and fundamental science by Lisdat, C., Grosche, G., Quintin, N., Shi, C., Raupach, S.M.F., Grebing, C., Nicolodi, D., Stefani, F., Al-Masoudi, A., Dörscher, S., Häfner, S., Robyr, J.-L., Chiodo, N., Bilicki, S., Bookjans, E., Koczwara, A., Koke, S., Kuhl, A., Wiotte, F., Meynadier, F., Camisard, E., Abgrall, M., Lours, M., Legero, T., Schnatz, H., Sterr, U., Denker, H., Chardonnet, C., Le Coq, Y., Santarelli, G., Amy-Klein, A., Le Targat, R., Lodewyck, J., Lopez, O, Pottie, P.-E.

“…Leveraging the unrivalled performance of optical clocks as key tools for geo-science, for astronomy and for fundamental physics beyond the standard model…”
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Ultrastable Silicon Cavity in a Continuously Operating Closed-Cycle Cryostat at 4 K by Zhang, W, Robinson, J M, Sonderhouse, L, Oelker, E, Benko, C, Hall, J L, Legero, T, Matei, D G, Riehle, F, Sterr, U, Ye, J

“…We report on a laser locked to a silicon cavity operating continuously at 4 K with 1×10^{-16} instability and a median linewidth of 17 mHz at 1542 nm. This is…”
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Test of Special Relativity Using a Fiber Network of Optical Clocks by Delva, P, Lodewyck, J, Bilicki, S, Bookjans, E, Vallet, G, Le Targat, R, Pottie, P-E, Guerlin, C, Meynadier, F, Le Poncin-Lafitte, C, Lopez, O, Amy-Klein, A, Lee, W-K, Quintin, N, Lisdat, C, Al-Masoudi, A, Dörscher, S, Grebing, C, Grosche, G, Kuhl, A, Raupach, S, Sterr, U, Hill, I R, Hobson, R, Bowden, W, Kronjäger, J, Marra, G, Rolland, A, Baynes, F N, Margolis, H S, Gill, P

“…Phase compensated optical fiber links enable high accuracy atomic clocks separated by thousands of kilometers to be compared with unprecedented statistical…”
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A transportable strontium optical lattice clock by Poli, N., Schioppo, M., Vogt, S., Falke, St, Sterr, U., Lisdat, Ch, Tino, G. M.

“…We report on a transportable optical clock, based on laser-cooled strontium atoms trapped in an optical lattice. The experimental apparatus is composed of a…”
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Substrate-transferred GaAs/AlGaAs crystalline coatings for gravitational-wave detectors by Cole, G. D., Ballmer, S. W., Billingsley, G., Cataño-Lopez, S. B., Fejer, M., Fritschel, P., Gretarsson, A. M., Harry, G. M., Kedar, D., Legero, T., Makarem, C., Penn, S. D., Reitze, D. H., Steinlechner, J., Sterr, U., Tanioka, S., Truong, G.-W., Ye, J., Yu, J.

“…In this Perspective, we summarize the status of technological development for large-area and low-noise substrate-transferred GaAs/AlGaAs (AlGaAs) crystalline…”
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Blackbody radiation shift in strontium lattice clocks revisited by Lisdat, Ch, Dörscher, S., Nosske, I., Sterr, U.

“…We reevaluate the blackbody radiation (BBR) induced ac-Stark shift of the strontium clock transition (5s5p)^{3}P_{0}-(5s^{2})^{1}S_{0} at 698nm used as…”
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Comparing ultrastable lasers at 7 × 10−17 fractional frequency instability through a 2220 km optical fibre network by Schioppo, M., Kronjäger, J., Silva, A., Ilieva, R., Paterson, J. W., Baynham, C. F. A., Bowden, W., Hill, I. R., Hobson, R., Vianello, A., Dovale-Álvarez, M., Williams, R. A., Marra, G., Margolis, H. S., Amy-Klein, A., Lopez, O., Cantin, E., Álvarez-Martínez, H., Le Targat, R., Pottie, P. E., Quintin, N., Legero, T., Häfner, S., Sterr, U., Schwarz, R., Dörscher, S., Lisdat, C., Koke, S., Kuhl, A., Waterholter, T., Benkler, E., Grosche, G.

“…Ultrastable lasers are essential tools in optical frequency metrology enabling unprecedented measurement precision that impacts on fields such as atomic…”
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Vibration-insensitive reference cavity for an ultra-narrow-linewidth laser by Nazarova, T, Riehle, F, Sterr, U

“…We report a novel mounting of the reference cavity used for stabilization of the clock laser in an optical frequency standard. The cavity axis is oriented…”
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Demonstration of a transportable 1 Hz-linewidth laser by Vogt, S., Lisdat, C., Legero, T., Sterr, U., Ernsting, I., Nevsky, A., Schiller, S.

“…We present the setup and test of a transportable clock laser at 698 nm for a strontium lattice clock. A master-slave diode laser system is stabilized to a…”
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Collisional losses, decoherence, and frequency shifts in optical lattice clocks with bosons by Lisdat, Ch, Winfred, J S R Vellore, Middelmann, T, Riehle, F, Sterr, U

“…We have quantified collisional losses, decoherence and the collision shift in a one-dimensional optical lattice clock on the highly forbidden transition…”
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Demonstration of 4.8 × 10−17 stability at 1 s for two independent optical clocks by Oelker, E., Hutson, R. B., Kennedy, C. J., Sonderhouse, L., Bothwell, T., Goban, A., Kedar, D., Sanner, C., Robinson, J. M., Marti, G. E., Matei, D. G., Legero, T., Giunta, M., Holzwarth, R., Riehle, F., Sterr, U., Ye, J.

“…Optical atomic clocks require local oscillators with exceptional optical coherence owing to the challenge of performing spectroscopy on their…”
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Phase-coherent comparison of two optical frequency standards over 146 km using a telecommunication fiber link by Terra, O., Grosche, G., Predehl, K., Holzwarth, R., Legero, T., Sterr, U., Lipphardt, B., Schnatz, H.

“…We have explored the performance of two “dark fibers” of a commercial telecommunication fiber link for a remote comparison of optical clocks. The two fibers,…”
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Tackling the Blackbody Shift in a Strontium Optical Lattice Clock by Middelmann, T, Lisdat, C, Falke, S, Winfred, J S R Vellore, Riehle, F, Sterr, U

“…A major obstacle for optical clocks is the frequency shift due to blackbody radiation (BBR). We discuss how one can tackle this problem in an optical lattice…”
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Delivering pulsed and phase stable light to atoms of an optical clock by Falke, S., Misera, M., Sterr, U., Lisdat, C.

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Optical clock with ultracold neutral atoms by Wilpers, G, Binnewies, T, Degenhardt, C, Sterr, U, Helmcke, J, Riehle, F

“…We demonstrate how to realize an optical clock with neutral atoms that is competitive to the currently best single ion optical clocks in accuracy and superior…”
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Vibration-insensitive reference cavity for an ultra-narrow-linewidth laser by NAZAROVA, T, RIEHLE, F, STERR, U

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The Stability of an Optical Clock Laser Transferred to the Interrogation Oscillator for a Cs Fountain by Lipphardt, B., Grosche, G., Sterr, U., Tamm, C., Weyers, S., Schnatz, H.

“…We stabilize a microwave oscillator at 9.6 GHz to an optical clock laser at 344 THz by using a fiber-based femtosecond laser frequency comb as a transfer…”
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Doppler cooling and trapping on forbidden transitions by Binnewies, T, Wilpers, G, Sterr, U, Riehle, F, Helmcke, J, Mehlstäubler, T E, Rasel, E M, Ertmer, W

“…Ultracold atoms at temperatures close to the recoil limit have been achieved by extending Doppler cooling to forbidden transitions. A cloud of (40)Ca atoms has…”
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