Search Results - "Thomsen, Jan W"
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Collectively enhanced Ramsey readout by cavity sub- to superradiant transition
Published in Nature communications (05-02-2024)“…When an inverted ensemble of atoms is tightly packed on the scale of its emission wavelength or when the atoms are collectively strongly coupled to a single…”
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Observation of motion-dependent nonlinear dispersion with narrow-linewidth atoms in an optical cavity
Published in Physical review letters (06-03-2015)“…As an alternative to state-of-the-art laser frequency stabilization using ultrastable cavities, it has been proposed to exploit the nonlinear effects from…”
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Compact, CO2-stabilized tuneable laser at 2.05 microns
Published in Optics express (07-03-2016)“…We demonstrate a compact fibre-based laser system at 2.05 microns stabilized to a CO2 transition using frequency modulation spectroscopy of a gas-filled…”
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Cavity-immune spectral features in the pulsed superradiant crossover regime
Published in Physical review research (01-09-2021)“…Lasing in the bad cavity regime has promising applications in precision metrology due to the reduced sensitivity to cavity noise originating from cavity length…”
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Compact, CO 2 -stabilized tuneable laser at 2.05 microns
Published in Optics express (07-03-2016)“…We demonstrate a compact fibre-based laser system at 2.05 microns stabilized to a CO transition using frequency modulation spectroscopy of a gas-filled…”
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A classroom demonstration of reciprocal space
Published in American journal of physics (01-04-2013)“…An array of nanowires and a laser pointer are used for a simple visualization of two-dimensional reciprocal space. The experiment can be performed without any…”
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Metastable Magnesium fluorescence spectroscopy using a frequency-stabilized 517 nm laser
Published in Optics express (27-04-2009)“…We present a laser operating at 517 nm for our Magnesium laser-cooling and atomic clock project. A two-stage Yb-doped fiber amplifier (YDFA) system generates…”
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Resonant energy transfer in Bose–Einstein condensates
Published in Physica. D (01-10-2008)“…We consider the dynamics of a dilute, magnetically-trapped one-dimensional Bose–Einstein condensate whose scattering length is periodically modulated with a…”
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Precision measurement of fermionic collisions using an 87Sr optical lattice clock with 1 × 10-16 inaccuracy
Published in IEEE transactions on ultrasonics, ferroelectrics, and frequency control (01-03-2010)“…We describe recent progress on the JILA Sr optical frequency standard, which has a systematic uncertainty at the 10 -16 fractional frequency level. The…”
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Subnatural Linewidth Superradiant Lasing with Cold Sr 88 Atoms
Published in Physical review letters (02-06-2023)Get full text
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SAGE: A proposal for a space atomic gravity explorer
Published in The European physical journal. D, Atomic, molecular, and optical physics (01-11-2019)“…The proposed mission “Space Atomic Gravity Explorer” (SAGE) has the scientific objective to investigate gravitational waves, dark matter, and other fundamental…”
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Subnatural Linewidth Superradiant Lasing with Cold ^{88}Sr Atoms
Published in Physical review letters (02-06-2023)“…Superradiant lasers operate in the bad-cavity regime, where the phase coherence is stored in the spin state of an atomic medium rather than in the intracavity…”
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Nonlinear spectroscopy of Sr atoms in an optical cavity for laser stabilization
Published in Physical review. A, Atomic, molecular, and optical physics (06-11-2015)Get full text
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Precision measurement of fermionic collisions using an super(87)Sr optical lattice clock with 1 10 super(-16) inaccuracy
Published in IEEE transactions on ultrasonics, ferroelectrics, and frequency control (01-03-2010)“…We describe recent progress on the JILA Sr optical frequency standard, which has a systematic uncertainty at the 10 super([iquest]16) fractional frequency…”
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Sub-Natural Linewidth Superradiant Lasing with Cold $^{88}$Sr Atoms
Published 17-02-2023“…Superradiant lasers operate in the bad-cavity regime, where the phase coherence is stored in the spin state of an atomic medium rather than in the intracavity…”
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Collectively enhanced Ramsey readout by cavity sub- to superradiant transition
Published 21-06-2023“…When an inverted ensemble of atoms is tightly packed on the scale of its emission wavelength or when the atoms are collectively strongly coupled to a single…”
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Cavity-immune features in the spectra of superradiant crossover laser pulses
Published 19-05-2021“…Phys. Rev. Research 3, 033258 (2021) Lasing in the bad cavity regime has promising applications in precision metrology due to the reduced sensitivity to cavity…”
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Precision measurement of fermionic collisions using an 87Sr optical lattice clock with 1 x 10(-16) inaccuracy
Published in IEEE transactions on ultrasonics, ferroelectrics, and frequency control (01-03-2010)“…We describe recent progress on the JILA Sr optical frequency standard, which has a systematic uncertainty at the 10(¿16) fractional frequency level. The…”
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