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Journal Article

Cavity Antiresonance Spectroscopy of Dipole Coupled Subradiant Arrays

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Genes,  Claudiu
Genes Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Plankensteiner, D., Sommer, C., Ritsch, H., & Genes, C. (2017). Cavity Antiresonance Spectroscopy of Dipole Coupled Subradiant Arrays. PHYSICAL REVIEW LETTERS, 119(9): 093601. doi:10.1103/PhysRevLett.119.093601.


Cite as: https://hdl.handle.net/21.11116/0000-0000-8E7E-4
Abstract
An array of N closely spaced dipole coupled quantum emitters exhibits super-and subradiance with characteristic tailorable spatial radiation patterns. Optimizing the emitter geometry and distance with respect to the spatial profile of a near resonant optical cavity mode allows us to increase the ratio between light scattering into the cavity mode and free space emission by several orders of magnitude. This leads to distinct scaling of the collective coherent emitter-field coupling vs the free space decay as a function of the emitter number. In particular, for subradiant states, the effective cooperativity increases much faster than the typical linear proportional to N scaling for independent emitters. This extraordinary collective enhancement is manifested both in the amplitude and the phase profile of narrow collective antiresonances appearing at the cavity output port in transmission spectroscopy.