Abstract

Abstract : The purpose of this work is to develop techniques to overcome the fundamental limits of present frequency standards--the second order and residual first-order Doppler shifts. To this end suitable frequency reference transitions are studied for ions which are stored on electromagnetic traps and cooled by radiation pressure to less than 1K. Keywords: Atomic spectroscopy; Doppler narrowing; Doppler shifts; Frequency standards; High resolution spectroscopy; Ion storage; Laser spectroscopy; Penning trap; Laser cooling.

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