2016/04/13 by Ewan Munro, L. C. Kwek, Leong Chuan Kwek +1
Engineering · Physics and Astronomy · #Atom (system on chip) #Atomic physics #Condensed matter physics #Dipole #Enhanced Data Rates for GSM Evolution #Excitation #Nonlinear system #Optics #Optoelectronics #Phonon #Photon #Photonic Crystals and Applications #Photonic and Optical Devices #Photonic crystal #Photonics #Physics #Quantum mechanics #Quantum optics and atomic interactions #Range (aeronautics) #Transmission (telecommunications) #Waveguide #quant-ph
paper · pdf · doi:10.1088/1367-2630/aa7fad
arxiv created 2016/04/13 · openalex created_date 2016/06/24 · openalex publication_date 2017/08/21 · arxiv updated 2017/09/13 · openalex updated_date 2026/08/05
We study the optical properties of an ensemble of two-level atoms coupled to a 1D photonic crystal waveguide (PCW), which mediates long-range coherent dipole–dipole interactions between the atoms. We show that the long-range interactions can dramatically alter the linear and nonlinear optical behavior, as compared to a typical atomic ensemble. In particular, in the linear regime, we find that the transmission spectrum contains multiple transmission dips, whose properties we characterize. Moreover, we show how the linear spectrum may be used to infer the number of atoms present in the system, constituting an important experimental tool in a regime where techniques for conventional ensembles break down. We also show that some of the transmission dips are associated with an effective 'two-level' resonance that forms due to the long-range interactions. In particular, under strong global driving and appropriate conditions, we find that the atomic ensemble is only capable of absorbing and emitting single collective excitations at a time. Our results are of direct relevance to atom-PCW experiments that should soon be realizable.