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  • Articles: DFG German National Licenses  (2)
  • 1980-1984  (2)
  • 07.65  (1)
  • Chemistry  (1)
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  • Articles: DFG German National Licenses  (2)
Material
Years
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Laser phase and frequency stabilization using an optical resonator (1983)
    Springer
    Applied physics 31 (1983), S. 97-105 
    Details
    ISSN: 1432-0649
    Keywords: 06 ; 07.60 ; 07.65
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We describe a new and highly effective optical frequency discriminator and laser stabilization system based on signals reflected from a stable Fabry-Perot reference interferometer. High sensitivity for detection of resonance information is achieved by optical heterodyne detection with sidebands produced by rf phase modulation. Physical, optical, and electronic aspects of this discriminator/laser frequency stabilization system are considered in detail. We show that a high-speed domain exists in which the system responds to the phase (rather than frequency) change of the laser; thus with suitable design the servo loop bandwidth is not limited by the cavity response time. We report diagnostic experiments in which a dye laser and gas laser were independently locked to one stable cavity. Because of the precautions employed, the observed sub-100 Hz beat line width shows that the lasers were this stable. Applications of this system of laser stabilization include precision laser spectroscopy and interferometric gravity-wave detectors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00702605
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    An application of the INEPT pulse sequence to the NMR assignment of halogenated marine natural products (1983)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 21 (1983), S. 544-547 
    Details
    ISSN: 0030-4921
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The routine use of the INEPT pulse sequence is shown to be the method of choice for the assignment of multiplicity from 13C NMR spectra where no prior information about the 1J(CH) coupling constants is available, or where these are expected to vary over a large range. This technique is illustrated using spectra obtained from polyhalogenated monoterpenes isolated from the red alga Plocamium angustum, which have 1J(CH) values varying from 127 to 203 Hz.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/omr.1270210905
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    Paper (German National Licenses)
    Fulltext
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