2023/10/31 by Ignacio Salinas, Salinas, Ignacio, Javier Cubillos Cornejo +7 · 1 citation
Engineering · Physics and Astronomy · #Atomic Physics (physics.atom-ph) #FOS: Physical sciences #Optics (physics.optics) #Photonic Crystals and Applications #Quantum Physics (quant-ph) #Random lasers and scattering media #Slime Mold and Myxomycetes Research
paper · pdf · doi:10.48550/arxiv.2310.20445
openalex publication_date 2023/10/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
Photonic lattices enable experimental exploration of transport and localization phenomena, two of the mayor goals in physics and technology. In particular, the optical excitation of some lattice sites which evanescently couple to a lattice array emulates radiation processes into structured reservoirs, a fundamental subject in quantum optics. Moreover, the simultaneous excitation of two sites simulates collective phenomena, leading to phase-controlled enhanced or suppressed radiation, namely super and subradiance. This work presents an experimental study of collective radiative processes on a photonic kagome lattice. A single or simultaneous -- in or out-of-phase -- excitation of the outlying sites controls the radiation dynamics. Specifically, we demonstrate a controlable transition between a fully localized profile at the two outlying sites and a completely dispersed state into the quasi-continuum. Our result presents photonic lattices as a platform to emulate and experimentally explore quantum optical phenomena in two-dimensional structured reservoirs, while harnessing such phenomena for controlling transport dynamics and implementing all-optical switching devices.