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Sunday, August 9, 2020 | History

2 edition of Sub-Doppler frequency measurements on OCS at 87 THz (3.4 [micron]m) with the CO overtone laser found in the catalog.

Sub-Doppler frequency measurements on OCS at 87 THz (3.4 [micron]m) with the CO overtone laser

Sub-Doppler frequency measurements on OCS at 87 THz (3.4 [micron]m) with the CO overtone laser

considerations and details

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Published by U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, For sale by the Supt. of Docs., U.S. G.P.O. in Boulder, CO, Washington, DC .
Written in English

    Subjects:
  • Frequencies of oscillating systems -- Measurement.,
  • Carbon monoxide lasers.

  • Edition Notes

    StatementA. Dax ... [et al.].
    SeriesNIST technical note -- 1365.
    ContributionsDax, A., National Institute of Standards and Technology (U.S.)
    The Physical Object
    FormatMicroform
    Paginationiii, 25 p.
    Number of Pages25
    ID Numbers
    Open LibraryOL18073745M

    A.G. Maki: free download. Ebooks library. On-line books store on Z-Library | B–OK. Download books for free. Find books. Mar 27,  · Optical comb generators for laser frequency measurement. P Boyd M M, Ludlow A D, Blatt S, Foreman S M, Ido T, Zelevinsky T and Ye J 87 Sr lattice clock with inaccuracy Daussy C, Grain C, Lopez O, Santarelli G and Chardonnet C Absolute frequency measurement in the THz spectral region with a femtosecond laser comb and a.

    transitionwasusedfortheOCSP(27)10°l°0measurement. Polarizationspectroscopic techniques with optical heterodyne detection were used to observe thefeatures and then to. A quantum cascade distributed feedback laser operating at µm is used to obtain sub-Doppler resolution limited saturation features in a Lamb-dip experiment on the R()1/2 and R()3/2 transitions of NO. The dips appear as transmission spikes with full widths of ~ MHz. At this resolution the 73 MHz Λ-doubling of the R()3/2 line, which is normally obscured by the MHz Doppler.

    The laser frequency is stabilized in a frequency-offset locking scheme (FOL) on combination frequencies of two CO 2 laser standards. This FOL technique allows us to sweep the laser frequency in a well-defined and linear manner with very high frequency accuracy. The uncertainty is smaller than 40 kHz (corresponding to Δv/v=4· at v= THz Author: M. Mürtz, M. H. Wappelhorst, R. Martini, P. Palm, B. Frech, W. Urban. Measurement of the intermolecular vibration-rotation-tunneling spectrum of the ammonia dimer by tunable far infrared laser spectroscopy J. Chem. Phys. 94, () 7. M. Havenith, M. Schneider, W. Bohle, W. Urban Sub-Doppler Faraday LMR spectroscopy: first applications to NO and DBr+ Mol. Phys. 72, () 8. H.


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Sub-Doppler frequency measurements on OCS at 87 THz (3.4 [micron]m) with the CO overtone laser Download PDF EPUB FB2

Abstract Sub-Doppler frequency measurements have been made on three transitions of OCS in the THz region (near cm −1). The CO overtone laser was used as the saturating egypharmed2018.com by: Abstract Sub-Doppler frequency measurements have been made on three transitions of OCS in the THz region (near cm -1).

The CO overtone laser was used as the saturating laser. Get this from a library. Sub-Doppler frequency measurements on OCS at 87 THz ( [micron]m) with the CO overtone laser: considerations and details.

[A Dax; National Institute of Standards and Technology (U.S.);]. Frequencies were measured of OCS transitions in the ll'el-Ol~~ and lllfl-O1'fO bands at 87 THz ( pm). With the exception of some measurements on CO and N20, our measurements between and were all Doppler-limited. THZ MEASUREMENTS ON OCS 99 for the cm- ' region, these measurements also can be used to provide frequencies for the 1 I1-OOoO band near cm-'.That band, however, may be too weak for practical use as a source of calibration.

We present sub-Doppler heterodyne frequency measurements on 10 rovibrational transitions of carbonyl sulfide (OCS) between and cm−1. The mea Cited by: 6. Heterodyne frequency measurements have been extended to 87 THz by using the CO overtone laser as a transfer oscillator.

Measurements were made on the 11 1 1 0 band of OCS at cm −1. Frequency differences were measured between a tunable diode laser (TDL) which was locked to OCS absorption lines and a stabilized overtone laser which was referenced to stabilized CO 2 egypharmed2018.com by: Abstract We present sub-Doppler heterodyne frequency measurements on 10 rovibrational transitions of carbonyl sulfide (OCS) between and cmThe measurements were made using a CO overtone laser which had limited tuneability through the generation of.

We present a series of sub-Doppler frequency measurements of carbonyl sulfide (OCS) rovibrational transitions covering the spectral region around cm −1 (61 THz).

The absolute experimental uncertainties are between 21 and 84 kHz (Δν/ν = 3–14 × 10 −10).In our spectrometer, tunable microwave sidebands are added to CO-laser lines and are used to saturate OCS transitions at low Cited by: Frequency measurements and self-broadening of sub-Doppler transitions in the v1 + v3 band of C 2 H 2 Article in The Journal of Chemical Physics (15) · October with 65 Reads.

JOURNAL OF MOLECULAR SPECTROSCOPY() Heterodyne Frequency Measurements on OCS near THz ( cm-') J. WELLS AND M. SCHNEIDER I Time and Frequency Division, National Institute of Standards and Technology, Boulder, Colorado AND A.

MAm2 Molecular Spectroscopy Division, National Institute of Standards and Technology. Sub-Doppler Frequency Measurements on OCS at 87 THz ( mm) with the CO Overtone Laser," A. Dax, J.S. Wells, L. Hollberg, A.G. Maki, and W. Urban, J. Mol. Spectrosc.(). egypharmed2018.com "Sub-Doppler Frequency Measurements on OCS near and CM-1,".

Heterodyne frequency measurements have been extended to 87 THz by using the CO overtone laser as a transfer oscillator. Measurements were made on the band of OCS at cm Sub-Doppler Frequency Measurements on OCS at 87 THz (μm) with the CO Overtone Laser: Considerations and Details National Institute of Standards and Technology A.

Dax, J.S. Wells, L. Hollberg, A.G. Maki, W. Urban. The terahertz is a unit of measurement of frequency A terahertz (THz) is a SI-multiple (see prefix tera) of the frequency unit hertz and equal to 1, hertz.

What is frequency Instant conversions Conversion tables. Sub-Doppler frequency measurements have been made on three transitions of OCS in the THz region (near cm-1).

The CO overtone laser was used as the saturating laser. National Institute of Standards and Technology: free download. Ebooks library. On-line books store on Z-Library | B–OK. Download books for free. Find books. 36 Sub-Doppler Frequency Measurements on OCS at 87 THz (μm) with the CO Overtone Laser: Considerations and Details National Institute of Standards and Technology A.

Dax, J.S. Wells, L. Hollberg, A.G. Maki, W. Urban. More Sub-Doppler Heterodyne Frequency Measurements on OCS between 56 and 63 THz. made more sub-Doppler heterodyne frequency measurements on OCS. Frequency Measurements on OCS Near cm. RECOMMENDED VALUES OF STANDARD FREQUENCIES FOR APPLICATIONS INCLUDING THE PRACTICAL REALIZATION OF THE METRE AND SECONDARY REPRESENTATIONS OF THE DEFINITION OF THE SECOND STRONTIUM 87 ATOM (f THz) 87 Sr atoms, 5s2 1S 0 – 5s5p 3P 0 unperturbed optical transition 1.

Recommended value [1] of the frequency f(87Sr) =. Measurement with a frequency-locked diode laser spectrometer of the CO 2 broadening of the 2ν 2 and 3ν 2 ←ν 2 bands of OCS V. Lemaire, B. Lemoine, and F. Rohart, J. Mol. Spectrosc.() FB. Sub-Doppler heterodyne frequency measurements of carbonyl sulfide transitions between 56 and 62 THz.National Institute of Standards and Technology (U.S.): pobierz za darmo.

Biblioteka elektroniczna Z-Library | B–OK. Download books for free. Find books.May 15,  · We demonstrated a real-time frequency measurement of CW-THz wave using a single free-running THz comb.

The absolute frequency of the CW-THz wave is measured with an accuracy of *10−12 at a rate of 10 Hz.