About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Paper
Accurate measurement of relative oscillator strengths by phase-matched nonlinear optics
Abstract
A new method for accurately measuring relative oscillator strengths is presented. The method is based on measurements of the frequencies at which a nonlinear-optical sum-mixing process is phase matched. By applying this technique to Ca I, the relative strengths of the 4s2 S01-4snp P101 transitions for n=10-13 are measured to an accuracy of ±2%, more than six times better than previous measurements. © 1981 The American Physical Society.