Lamb shift statistics in mesoscopic quantum ensembles

Gunderman, Lane G.; Stasiuk, Andrew; Mandouh, Mohamed El; Borneman, Troy W.; Cory, David G.

doi:10.1007/s11128-021-03381-w

Cited by 2 publications

(1 citation statement)

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“…Meanwhile, g ij ( = ij 12, 23, 34, 41) is the scaled damping parameter similar to that of phenomenological damping in density matrix formalism (more in the later section). It was included since transitions within the excitation rung of the TC model may be induced solely by emitter decay processes, such as incoherent contact with the external environment or the dipole dephasing rate attributable to processes unrelated to population transfer [42]. Moreover, in TC model, the transition to dark-state from the ground state is forbidden [43].…”

Section: Theoretical Description and Fitting With The Experiments Res...mentioning

confidence: 99%

Third-order nonlinearity with subradiance dark-state in ultra-strong excitons and surface plasmon coupling using self-antiaggregation organic dye

et al. 2023

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A strong coupling regime with dressed states is formed when a propagating surface plasmon (PSP) mode coherently exchanges energy with an ensemble of excitons at a rate faster than the system's losses. These states are superpositions of superradiance excitons and PSP modes, accompanied by remaining subradiance or "dark" exciton states. Dark-states are ubiquitous, especially in disorderly systems, and they rise in number as the number of excitons increases. Here, the ultra-strong coupling regime was experimentally observed with the coupling strength over the bare energy as high as g/Eexciton ~ 0.23 using a self-antiaggregation organic dye, BOBzBT2 in an Otto-SPR configuration. We show that the hybrid system of excitons in a nonlinear organic dye layer and a PSP mode can be described by employing dark-state in a theory of nonlinear third-order sum-frequency generation (TSFG). Close agreement between the theory and the experiment has been demonstrated. The study opens up a new perspective for establishing a relationship between the optical properties of a third-order nonlinear material and the extent of strong coupling.

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Section: Theoretical Description and Fitting With The Experiments Res...mentioning

confidence: 99%