Super-Poissonian Light Statistics from Individual Silicon Vacancy Centers Coupled to a Laser-Written Diamond Waveguide
Michael K. Koch,Michael Hoese,Vibhav Bharadwaj,Johannes Lang,J. P. Hadden,Roberta Ramponi,Fedor Jelezko,Shane M. Eaton,Alexander Kubanek +8 more
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In this paper , the authors combine excitation of single shallow-implanted silicon vacancy centers via high numerical aperture optics with detection assisted by laser-written type-II waveguides.Abstract:
Modifying light fields at the single-photon level is a key challenge for upcoming quantum technologies and can be realized in a scalable manner through integrated quantum photonics. Laser-written diamond photonics offers 3D fabrication capabilities and large mode-field diameters matched to fiber optic technology, though limiting the cooperativity at the single-emitter level. To realize large coupling efficiencies, we combine excitation of single shallow-implanted silicon vacancy centers via high numerical aperture optics with detection assisted by laser-written type-II waveguides. We demonstrate single-emitter extinction measurements with a cooperativity of 0.0050 and a relative beta factor of 13%. The transmission of resonant photons reveals single-photon subtraction from a quasi-coherent field resulting in super-Poissonian light statistics. Our architecture enables light field engineering in an integrated design on the single quantum level although the intrinsic cooperativity is low. Laser-written structures can be fabricated in three dimensions and with a natural connectivity to optical fiber arrays.read more
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A diamond nanophotonic interface with an optically accessible deterministic electronuclear spin register
Ryan Parker,Kevin C. Chen,Alexander M. Stramma,Isaac B. Harris,Cathryn P. Michaels,Matthew E. Trusheim,Martin Hayhurst Appel,Carola M. Purser,W. Roth,Dirk Englund,Mete Atature +10 more
TL;DR: In this paper , a nanophotonic diamond waveguide with a tin-vacancy center with a spin-1/2 ${117}$Sn nucleus is presented.
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TL;DR: In this article, the authors demonstrate an integrated platform for scalable quantum nanophotonics based on silicon-vacancy (SiV) color centers coupled to diamond nanodevices.