Library of Congress Cataloging-in-Publication Data Iffländer, Reinhard. [Festkörperlaser zur Materialbearbeitung. Englishl Solid-state lasers for materials processing : fundamental relations and technical realizations I Reinhard Iffländer ; translated by Stefan Weber. p.cm. -(Springer series in optical sciences; v. 77) Includes bibliographical references and index. I. Solid-state lasers. I. Title. II. Series. TAI705.133132000 621.36'61-dc21 00-049702
The observation of D1-fluorescence light from trapped Ba+ ions, using a pulsed tunable dye laser as a light source, leads to a sensitive detection of the confined particles. In preparation of an ODR-experiment to determine the ground state hyperfine splitting of the odd isotopes we found the optimum operating point of the trap and measured the average ion energy.
A resonator with an internal lens can be characterized by its equivalent g-parameters which give the regions of stability if the lens has variable focal length. However, other properties are not given by this equivalence and have to be investigated by means of the resonator matrix method. Beam diameter, divergence angle, number of transversal modes, positions of beam waists, stability, and the correlations of these parameters with position and focal length of the internal lens are discussed. Regions of low sensitivity to variations of the focal length are evaluated and compared with experimental results. For some special resonator configurations numerical results are presented.
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