Abstract
Slow light based on transient spectral hole-burning is reported for emerald, . Experiments were conducted in polarization on the line () at 2.2 K in zero field and low magnetic fields . The hole width was strongly dependent on , and this allowed us to smoothly tune the pulse delay from 40 to 154 ns between zero field and . The latter corresponds to a group velocity of . Slow light in conjunction with a linear filter theory can be used as a powerful and accurate technique in time-resolved spectroscopy, e.g., to determine spectral hole-widths as a function of time.
© 2013 Optical Society of America
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