Papers › Field-based Design of a Resonant Dielectric Antenna for Coherent Spin-Photon Interfaces
Field-based Design of a Resonant Dielectric Antenna for Coherent Spin-Photon Interfaces
Linsen Li, Hyeongrak Choi, Mikkel Heuck, Dirk Englund
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We propose a field-based design for dielectric antennas to interface diamond color centers with a Gaussian propagating far field. This antenna design enables an efficient spin-photon interface with a Purcell factor exceeding 400 and a 93% mode overlap to a 0.4 numerical aperture far-field Gaussian mode. The antenna design is robust to fabrication imperfections, such as variations in the dimensions of the dielectric perturbations and the emitter dipole location. The field-based dielectric antenna design provides an efficient free-space interface to closely packed arrays of quantum memories for multiplexed quantum repeaters, arrayed quantum sensors, and modular quantum computers.
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