Articles with "direct frequency" as a keyword



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Single ion fluorescence excited with a single mode of an UV frequency comb

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Published in 2017 at "Nature Communications"

DOI: 10.1038/s41467-017-00067-9

Abstract: Optical frequency combs have revolutionized the measurement of optical frequencies and improved the precision of spectroscopic experiments. Besides their importance as a frequency-measuring ruler, the frequency combs themselves can excite target transitions (direct frequency comb… read more here.

Keywords: direct frequency; frequency; spectroscopy; frequency comb ... See more keywords
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Ultrahigh-Resolution Direct-Frequency-Comb Spectrometer

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Published in 2020 at "Physical review applied"

DOI: 10.1103/physrevapplied.14.024087

Abstract: High-resolution broadband spectroscopy is crucial for studying complex molecular structures and accurately retrieving the line shapes associated with their energy levels. These line shapes carry vital information about a molecule's thermodynamic properties such as temperature,… read more here.

Keywords: direct frequency; resolution; comb spectrometer; resolution direct ... See more keywords
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Direct frequency-domain 3D acoustic solver with intermediate data compression benchmarked against time-domain modeling for full-waveform inversion applications

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Published in 2019 at "GEOPHYSICS"

DOI: 10.1190/geo2018-0465.1

Abstract: We have developed a fast direct solver for numerical simulation of acoustic waves in 3D heterogeneous media. The Helmholtz equation is approximated by a 27-point finite-difference stencil of second-order accuracy that is optimized to reduce… read more here.

Keywords: time; direct frequency; compression; time domain ... See more keywords