An asymmetric vertical cavity enables near-unity polarized single-photon emission efficiency from neutral and charged excitons by selectively enhancing one polarization through Purcell effects.
For example, forθ= π 4 and in the limit ∆FSS ≫Γ H ,Γ V we obtainN H +N V = (ΓH+ΓV )2 4ΓHΓV , which is always>1 except for ΓH = ΓV
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Theory of single-photon emission from neutral and charged excitons in a polarization-selective cavity
An asymmetric vertical cavity enables near-unity polarized single-photon emission efficiency from neutral and charged excitons by selectively enhancing one polarization through Purcell effects.