Transparency near a photonic band edge
Open Access
- 1 July 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 60 (1) , R33-R36
- https://doi.org/10.1103/physreva.60.r33
Abstract
We study the absorption and dispersion properties of a Λ-type atom that decays spontaneously near the edge of a photonic band gap (PBG). Using an isotropic PBG model, we show that the atom can become transparent to a probe laser field, even when other dissipative channels are present. This transparency originates from the square-root singularity of the density of modes of the PBG material at threshold.Keywords
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