Search Results - "FORTIER, T"
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1
Hyperpolarizability and Operational Magic Wavelength in an Optical Lattice Clock
Published in Physical review letters (19-12-2017)“…Optical clocks benefit from tight atomic confinement enabling extended interrogation times as well as Doppler- and recoil-free operation. However, these…”
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2
Frequency Ratio of Al⁺ and Hg⁺ Single-Ion Optical Clocks; Metrology at the 17th Decimal Place
Published in Science (American Association for the Advancement of Science) (28-03-2008)“…Time has always had a special status in physics because of its fundamental role in specifying the regularities of nature and because of the extraordinary…”
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3
Frequency-comb spectroscopy on pure quantum states of a single molecular ion
Published in Science (American Association for the Advancement of Science) (27-03-2020)“…Spectroscopy is a powerful tool for studying molecules and is commonly performed on large thermal molecular ensembles that are perturbed by motional shifts and…”
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4
Spin-1/2 optical lattice clock
Published in Physical review letters (07-08-2009)“…We experimentally investigate an optical clock based on ;{171}Yb (I = 1/2) atoms confined in an optical lattice. We have evaluated all known frequency shifts…”
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5
Optical lattice induced light shifts in an yb atomic clock
Published in Physical review letters (14-03-2008)“…We present an experimental study of the lattice-induced light shifts on the (1)S(0) --> (3)P(0) optical clock transition (nu(clock) approximately 518 THz) in…”
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6
Optimizing the linearity in high-speed photodiodes
Published in Optics express (12-11-2018)“…Analog photonic links require high-fidelity, high-speed optical-to-electrical conversion for applications such as radio-over-fiber, synchronization at…”
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7
Sr lattice clock at 1 x 10(-16) fractional uncertainty by remote optical evaluation with a Ca clock
Published in Science (American Association for the Advancement of Science) (28-03-2008)“…Optical atomic clocks promise timekeeping at the highest precision and accuracy, owing to their high operating frequencies. Rigorous evaluations of these…”
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8
Improved signal-to-noise ratio of 10 GHz microwave signals generated with a mode-filtered femtosecond laser frequency comb
Published in Optics express (02-03-2009)“…We use a Fabry-Perot cavity to optically filter the output of a Ti:sapphire frequency comb to integer multiples of the original 1 GHz mode spacing. This…”
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9
Optically referenced broadband electronic synthesizer with 15 digits of resolution
Published in Laser & photonics reviews (01-09-2016)“…Fundamental science, as well as all communications and navigation systems, are heavily reliant on the phase, timing, and synchronization provided by low‐noise…”
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10
Precision atomic spectroscopy for improved limits on variation of the fine structure constant and local position invariance
Published in Physical review letters (16-02-2007)“…We report tests of local position invariance and the variation of fundamental constants from measurements of the frequency ratio of the 282-nm 199Hg+ optical…”
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11
Probing Interactions Between Ultracold Fermions
Published in Science (American Association for the Advancement of Science) (17-04-2009)“…At ultracold temperatures, the Pauli exclusion principle suppresses collisions between identical fermions. This has motivated the development of atomic clocks…”
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12
Single-atom optical clock with high accuracy
Published in Physical review letters (14-07-2006)“…For the past 50 years, atomic standards based on the frequency of the cesium ground-state hyperfine transition have been the most accurate time pieces in the…”
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13
Generation of ultrastable microwaves via optical frequency division
Published in Nature photonics (01-07-2011)“…There has been increased interest in the use and manipulation of optical fields to address the challenging problems that have traditionally been approached…”
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14
Towards the optical second: verifying optical clocks at the SI limit
Published in Optica (20-04-2019)Get full text
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15
Kilohertz-resolution spectroscopy of cold atoms with an optical frequency comb
Published in Physical review letters (20-10-2006)“…We have performed sub-Doppler spectroscopy on the narrow intercombination line of cold calcium atoms using the amplified output of a femtosecond laser…”
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16
10 GHz generation with ultra-low phase noise via the transfer oscillator technique
Published in APL photonics (01-02-2022)“…Coherent frequency division of high-stability optical sources permits the extraction of microwave signals with ultra-low phase noise, enabling their…”
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17
Carrier-envelope phase-controlled quantum interference of injected photocurrents in semiconductors
Published in Physical review letters (09-04-2004)“…We demonstrate quantum interference control of injected photocurrents in a semiconductor using the phase stabilized pulse train from a mode-locked Ti:sapphire…”
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18
Multiple bonding geometries and binding state conversion of benzene/Si(100)
Published in Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films (01-05-1998)“…Scanning tunneling microscopy (STM), Fourier-transform infrared spectroscopy and semiempirical quantum cluster calculations have been used to investigate the…”
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19
A low-threshold self-referenced Ti:Sapphire optical frequency comb
Published in Optics express (02-10-2006)“…We demonstrate an octave-spanning, self-referenced optical frequency comb produced with a high-repetition-rate (frep=585 MHz) femtosecond Ti:Sapphire laser…”
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20
Carrier-Envelope Phase-Controlled Quantum Interference of Injected Photocurrents in Semiconductors
Published in Physical review letters (09-04-2004)Get full text
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