Heterogeneous integration of solid state quantum systems with a foundry photonics platform
arXiv:2304.10227 · doi:10.1021/acsphotonics.3c00713
Abstract
Diamond colour centres are promising optically-addressable solid state spins that can be matter-qubits, mediate deterministic interaction between photons and act as single photon emitters. Useful quantum computers will comprise millions of logical qubits. To become useful in constructing quantum computers, spin-photon interfaces must therefore become scalable and be compatible with mass-manufacturable photonics and electronics. Here we demonstrate heterogeneous integration of NV centres in nanodiamond with low-fluorescence silicon nitride photonics from a standard 180 nm CMOS foundry process. Nanodiamonds are positioned over pre-defined sites in a regular array on a waveguide, in a single post-processing step. Using an array of optical fibres, we excite NV centres selectively from an array of six integrated nanodiamond sites, and collect the photoluminescence (PL) in each case into waveguide circuitry on-chip. We verify single photon emission by an on-chip Hanbury Brown and Twiss cross-correlation measurement, which is a key characterisation experiment otherwise typically performed routinely with discrete optics. Our work opens up a simple and effective route to simultaneously address large arrays of individual optically-active spins at scale, without requiring discrete bulk optical setups. This is enabled by the heterogeneous integration of NV centre nanodiamonds with CMOS photonics.
arXiv comment8 pages, 4 figures, and supplementary material
References in corpus (38)
- Sensing electric fields using single diamond spins
- Heralded entanglement between solid-state qubits separated by 3 meters
- Realization of a multi-node quantum network of remote solid-state qubits
- Quantum error correction in a solid-state hybrid spin register
- Photon antibunching in the fluorescence of individual color centers in diamond
- Large-scale integration of near-indistinguishable artificial atoms in hybrid photonic circuits
- Entanglement Distillation between Solid-State Quantum Network Nodes
- Real-space imaging of non-collinear antiferromagnetic order with a single spin magnetometer
- Quantum networks based on color centers in diamond
- Enhancement of the Zero Phonon Line emission from a Single NV-Center in a Nanodiamond via Coupling to a Photonic Crystal Cavity
- Integration of Single Photon Emitters in 2D Layered Materials with a Silicon Nitride Photonic Chip
- Coupling of a single NV-center in diamond to a fiber-based microcavity
- CMOS-Integrated Diamond Nitrogen-Vacancy Quantum Sensor
- Observing bulk diamond spin coherence in high-purity nanodiamonds
- Ultra-bright and efficient single photon generation based on N-V centres in nanodiamonds on a solid immersion lens
- A scanning probe-based pick-and-place procedure for assembly of integrated quantum optical hybrid devices
- Room temperature single-photon emitters in silicon nitride
- Photophysics of single nitrogen-vacancy centers in diamond nanocrystals
- Deterministic nano-assembly of a coupled quantum emitter - photonic crystal cavity system
- Nanopositioning of a diamond nanocrystal containing a single NV defect center
- Suitability of nanodiamond NV centers for spontaneous emission control experiments
- Integrated waveguides and deterministically positioned nitrogen vacancy centers in diamond created by femtosecond laser writing
- Nano-manipulation of diamond-based single photon sources
- Efficient Photon Coupling from a Diamond Nitrogen Vacancy Centre by Integration with Silica Fibre
- Deterministic positioning of colloidal quantum dots on silicon nitride nanobeam cavities
- Integrated Single Photon Emitters
- Long Spin Coherence Times of Nitrogen Vacancy Centres in Milled Nanodiamonds
- NV-centers in Nanodiamonds: How good they are
- Efficient nitrogen-vacancy centers' fluorescence excitation and collection from micrometer-sized diamond by a tapered optical fiber
- Rapid classification of quantum sources enabled by machine learning
- Fluorescent diamond microparticles doped glass fiber for magnetic field sensing
- Slot-waveguide cavities for optical quantum information applications
- Hybrid Integration of GaP Photonic Crystal Cavities with Silicon-Vacancy Centers in Diamond by Stamp-Transfer
- Tracking Emission Rate Dynamics of NV Centers in Nanodiamonds
- An integrated magnetometry platform with stackable waveguide-assisted detection channels for sensing arrays
- Single photon emission and single spin coherence of a nitrogen vacancy centre encapsulated in silicon nitride
- Multiplexed Single Photons from Deterministically Positioned Nanowire Quantum Dots
- The NV centre coupled to an ultra-small mode volume cavity: a high efficiency source of indistinguishable photons at 200 K