Atom-mediated spontaneous parametric down-conversion in periodic waveguides | Zendy

Sina Saravi | Zendy; Alexander N. Poddubny | Zendy; Thomas Pertsch | Zendy; Frank Setzpfandt | Zendy; Andrey A. Sukhorukov | Zendy

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Atom-mediated spontaneous parametric down-conversion in periodic waveguides

Author(s) -

Sina Saravi,

Alexander N. Poddubny,

Thomas Pertsch,

Frank Setzpfandt,

Andrey A. Sukhorukov

Publication year - 2017

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.42.004724

Subject(s) - common emitter , physics , optics , excitation , photon , parametric statistics , spontaneous parametric down conversion , waveguide , quantum optics , atom (system on chip) , robustness (evolution) , nonlinear optics , spontaneous emission , nonlinear system , optoelectronics , quantum , quantum mechanics , laser , quantum entanglement , computer science , biochemistry , statistics , chemistry , mathematics , gene , embedded system

We propose the concept of atom-mediated spontaneous parametric down-conversion, in which photon-pair generation can take place only in the presence of a single two-level emitter, relying on the bandgap evanescent modes of a nonlinear periodic waveguide. Using a guided signal mode, an evanescent idler mode, and an atom-like emitter with the idler's transition frequency embedded in the structure, we find a heralded excitation mechanism, in which the detection of a signal photon outside the structure heralds the excitation of the embedded emitter. We use a rigorous Green's function quantization method to model this heralding mechanism in a 1D periodic waveguide and determine its robustness against losses.

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