Transient properties of modified reservoir-induced transparencyTransient properties of modified reservoir-induced transparency Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2015-10-222000enWe investigate the transient response of a Λ-type system with one transition decaying to a modified radiation reservoir with an inverse square-root singular density of modes at threshold, under conditions of transparency. We calculate the time evolution of the linear susceptibility for the probe laser field and show that, depending on the strength of the coupling to the modified vacuum and the background decay, the probe transmission can exhibit behavior ranging from underdamped to overdamped oscillations. Transient gain without population inversion is also possible depending on the system’s parameters.http://creativecommons.org/licenses/by/4.0/Physical Review A615 Aggelakis Dimitrios Αγγελακης Δημητριος Paspalakis, Emmanuel Knight Peter L. American Physical Society Quantum optics Physics of lasers Optics, Nonlinear nonlinear optics optics nonlinear