Transient properties of modified reservoir-induced transparency
نویسندگان
چکیده
It has been now well documented that quantum coherence and interference effects can modify the absorption and dispersion properties of an atomic system [1,2]. In the most common situation, that of a Λ-type threelevel system, the medium becomes transparent to a probe laser field near an otherwise absorbing resonant transition. This is achieved via the application of a second laser field coupling to the linked transition. In addition to steady state studies, considerable work has been done on the transient properties of coherent phenomena such as, for example, electromagnetically induced transparency [3,4], gain (or lasing) without inversion [5–7] and coherent population trapping [8,9].
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