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  1. No Access

    Article

    Diode laser spectrometer for high-resolution spectroscopy in the visible range

    A high-resolution diode laser spectrometer operating at 657 nm is described. To achieve a narrow linewidth and a high power, a master-slave laser system is employed. The master laser is an extended cavity diod...

    T. Kurosu, J. Ishikawa, N. Ito in Applied Physics B (1996)

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    Article

    A Ca optical frequency standard: Frequency stabilization by means of nonlinear Ramsey resonances

    An optical frequency standard based on frequency stabilization to Ramsey fringes observed in a Ca atomic beam is described. The important operation parameters influencing the uncertainty of such a standard are...

    A. Morinaga, F. Riehle, J. Ishikawa, J. Helmcke in Applied Physics B (1989)

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    Chapter and Conference Paper

    High-Contrast, High-Resolution Single Recoil Component Ramsey Fringes in Ca

    Frequency standards operating in the optical range promise very low frequency uncertainties due to the high spectral resolution and the small sensitivity to external fields. The intercombination line 3P1 - 1S0 of...

    J. Helmcke, J. Ishikawa, F. Riehle in Frequency Standards and Metrology (1989)