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arXiv · 1709.08715

Coherent light generation in hybrid atomic-nanophotonic integrated structures

Hadiseh Alaeian·Brian C. Odom·Jorge Bravo-Abad
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Abstract

The integration of neutral atoms with nanophotonic structures offer significant potential as a versatile platform to explore fundamental light-matter interactions as well as realizing novel quantum-optical devices. Here, we investigate the possibility of creating low-threshold micro-scale lasers in hybrid systems based on integrating room-temperature atomic gases with both dielectric and metallic nanophotonic systems. We particularly focus on studying two different devices resulting from incorporating an optically-pumped Rb-ethane mixture in a dielectric ring resonator and a plasmonic lattice. We show in both cases the combination of the optical gain provided by the atomic vapor, along with the unique field-confinement properties of nanophotonic structures, enables generating of coherent radiation, i.e. laser light, at low power levels. In addition, we provide general design guidelines for these hybrid nano-lasers and an efficient density matrix-based formalism for studying these systems. Our results demonstrate a unique route towards small foot-print, highly efficient, and fast lasers, which paves the way towards the development of a whole new class of active nanophotonic and metamaterial systems.

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Hadiseh Alaeian, Brian C. Odom, Jorge Bravo-Abad. 2017-09-25. Coherent light generation in hybrid atomic-nanophotonic integrated structures. https://doi.org/10.1002/andp.201800203

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