Speaker: Pankaj Jha Session: QASER 2 See program for placement. Quantum Vacuum Engineering with Metasurface over Macroscopic Distances: A New Regime of QED P. K. Jha*, X. Ni, C. Wu, Y. Wang, & X. Zhang NSF Nanoscale Science and Engineering Center (NSEC), 3112 Etcheverry Hall, Berkeley, California 94720, USA Materials Science Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road Berkeley, California 94720, USA (*Email: [email protected]) Effect of quantum vacuum (QV), of an electromagnetic field, has led to many remarkable phenomena in quantum optics, atomic physics, etc. [1]. For example, a two-level quantum emitter in the vicinity of a metallic interface experiences a strong anisotropic quantum vacuum (AQV) and exhibit orientation dependent decay rate as shown in Fig. 1. Such AQV can induce interesting quantum interference effects in a multi-level quantum emitter (atoms, QDs, etc). However key challenge in conceiving this z |a configuration lies in trapping and ℘ holding an atom at few tens of nm b x from the surface. |b Recently, metasurface engineered to exhibit unique optical properties not d<< normally found in nature has attracted z great interest due to its exceptional ability to control the photon states [2]. x y Here we harness these properties to construct a strong AQV over macroscopic distances (~100 λ0) and probe the anisotropy via quantum interference [3]. This work could open new regime of quantum electrodynamics (QED), bringing quantum optics with metamaterials [4,5], long-range interaction between quantum emitters, etc. ab [1] Scully, M. O., & Zubairy, M. S. Quantum Optics (Cambridge Press, London, 1997). [2] Yu, N., Capasso, F., “Flat optics with designer metasurfaces”, Nature Mater. 13, 139-150 (2014). [3] Jha, P. K., Ni, X., Wu, C., Wang, Y., & Zhang, X., “Metasurface-Enabled Remote Quantum Interference in Atoms”, (submitted) [4] Dorfman, K. E., Jha, P. K., Voronine, D. V., Genevet, P., Capasso, F., & Scully, M. O. “Quantum-Coherence-Enhanced Surface Plasmon Amplification by Stimulated Emission of Radiation", Phys. Rev. Lett. 111, 043601(2013). [5] Jha, P. K., Mrejen, M., Kim, J., Wu, C., Wang, Y., Yin, X., & Zhang, X., “Interacting dark resonances with plasmonic meta-molecules”, Appl. Phys. Lett. 105, 111109(2014). PQE-2015 Abstract Processed 11 December 2014 0