22 research outputs found

    Laser frequency locking by direct measurement of detuning

    Full text link
    We present a new method of laser frequency locking in which the feedback signal is directly proportional to the detuning from an atomic transition, even at detunings many times the natural linewidth of the transition. Our method is a form of sub-Doppler polarization spectroscopy, based on measuring two Stokes parameters (I2I_2 and I3I_3) of light transmitted through a vapor cell. This extends the linear capture range of the lock loop by up to an order of magnitude and provides equivalent or improved frequency discrimination as other commonly used locking techniques.Comment: 4 pages, 4 figures Revte

    Study service in Sarvodaya Shramadana Movement, Sri Lanka, 1958-1976

    No full text
    The study-service aspect of the Sarvodaya Movement is analyzed, presenting its contribution to community development, non-formal education, rural sociology and related fields

    Constitutional Interpretation: Burke and Buchanan and their 18th Century Intellectual Roots

    No full text
    There is a respectable tradition of Burkean constitutional interpretation in legal scholarship whereas Edmund Burke is a relatively neglected figure in constitutional political economy. A comparison of the constitutional interpretations of constitutional political economy and Burkean legal scholarship provides a potentially fruitful outcome for both. This is particularly so given the 18th century intellectual roots of each. An examination of the Burkean tradition demonstrates why it is methodologically inductive, evolutionary and pessimistic, compared to the deductive, individualistic and optimistic approach of the Smithian tradition of constitutional political economy. Interestingly, these sharp distinctions in method produce similar results. Copyright Springer Science+Business Media, LLC 2006Constitutional interpretation, Edmund Burke, James Buchanan, A12, B4, B52,
    corecore