Cavity induced transparency

Perry R. Rice, Robert J. Brecha

Moteb M. Alqahtani

A method is presented for creating single- and double-cavity-induced transparency based on a cavity QED framework. Using this method we develop a fully quantized model of a cavity-induced transparency (CIT) scheme previously proposed [P. R. Rice and R. J. Brecha, Opt. Commun. 126, 230 (1996)] adopting the quantum-jump approach. This allows us to analyze the interaction of $N$ cavity fields with an $(N+1)$-level quantum system where $N=2,3$ for the cases of single- and double-cavity-induced transparency, respectively. In the steady-state limit, a general analytic expression for the linear susceptibility of a weak cavity field is obtained and $N\ensuremath{-}1$ transparency windows are observed. In the model we consider, no external fields are required to induce the transparency and the CIT effect is fully generated by cavity QED photons. We also compare the numerical integration of density-matrix equations with the analytical solutions provided by the quantum-jump approach and show that both results are in excellent agreement.

Haoye Qin, Ming Ding, Yiheng Yin

Induced transparency, an interference effect due to mode coupling, has attracted significant research interest. The first discovered and most striking type of induced transparency plays electromagnetically induced transparency (EIT) in atomic systems. Optical cavities serve as a more ideal and feasible platform for realizing the effects of induced transparency, which leads to considerable demonstrations in theory and experiments. This review provides a run‐through of research findings on different types of induced transparency phenomenon, including, inter alia, EIT, optomechanically induced transparency, plasmon‐induced transparency, Brillouin scattering induced transparency, optically induced transparency, photothermally induced transparency, and dipole‐induced transparency. Their mechanisms, developments, techniques, and applications are discussed in detail. Most importantly, the emerging area of induced transparency at exceptional points is analyzed for its great promise. The last section presents a brief summary and perspective of induced transparency with optical cavities.

Tracy M.W.Y. Li

Tracy M.W.Y. Li

Zhao-Hui Peng, Chun-Xia Jia, Yuqing Zhang +4 more

Dipole-induced transparency (DIT) is one of the most well-known transparency effects in quantum optics and has wide applications in scalable quantum information processing and quantum computation. However, most of the existing literatures only focuses on the DIT effect with coherent dipole-cavity coupling, thus its universality in other types of coupling is still to be clarified. Here, we propose a feasible scheme to realize dissipative dipole-cavity coupling with the assistance of a highly dissipative microcavity, and explicitly exhibit cavity-mode attraction. We then investigate the DIT effect in a cavity-waveguide system with attractive cavity modes and find that it can still be achievable even though the probe light is resonant with two attractive cavity modes. Furthermore, we reveal its underlying transparency mechanism with eigenfrequencies and the effective susceptibility of the dipole-cavity system, and show that its transparency lies in the destructive interference of two attractive cavity modes with splitting damping rates instead of splitting resonance frequencies in coherent coupling. Moreover, we find that the attractive and repulsive phenomena of the effective susceptibility, which also plays an important role in the DIT effect, exist in the dipole-cavity system. Our findings may not only be of importance for gaining a more comprehensive understanding on the DIT effect, but also have potential applications in quantum networks.