Strongly Cavity-Enhanced Spontaneous Emission from Silicon-Vacancy Centers in Diamond

Zhang, Jingyuan Linda; Sun, Shuo; Burek, Michael J.; Dory, Constantin; Tzeng, Yan‐Kai; Fischer, Kevin A.; Kelaita, Yousif A.; Lagoudakis, Konstantinos G.; Radulaski, Marina; Shen, Zhi‐Xun; Melosh, Nicholas A.; Chu, Steven; Lončar, Marko; Vučković, Jelena

doi:10.1021/acs.nanolett.7b05075

Cited by 140 publications

(122 citation statements)

References 60 publications

Supporting

Mentioning

119

Contrasting

Order By: Relevance

“…The controlled, room‐temperature cavity coupling gives rise to a Purcell enhancement factor of 19 over ZPL transition, coming along with a 2.5‐fold reduction of emitter's radiative lifetime . By employing a high‐quality nanobeam PhC with small mode volume, the radiative lifetime of the emitter can be further reduced to 200 ps regime (tenfold reduction) along with a 42‐fold fluorescence intensity enhancement on resonance . Although nanostructure engineering inevitably introduces extra strains to the quantum emitters, cavity‐enhanced Raman process has been proven to be an effective tool to overcome the issue of spectral inhomogeneity

(\approx 20 GHz)

by providing a large‐range frequency tunability (

\approx 100 normalGHz)

…”

Section: Photon‐mediated Spin–spin Interaction In Xv− Centermentioning

confidence: 99%

Building Blocks for Quantum Network Based on Group‐IV Split‐Vacancy Centers in Diamond

2019

View full text Add to dashboard Cite

One ultimate goal of quantum information processing is to construct a quantum network for direct sharing of quantum information between distant parties based on stationary qubits for information storage and flying qubits for information transmission. This requires long‐lived quantum memories, efficient light–matter interface, and deterministic quantum gate operations. Among matter qubits, the electron spin of nitrogen vacancy center in diamond is an appealing option for its long coherence time at room temperature, deterministic microwave control, and optical preparation and readout of the qubit. However, its poor optical properties, including weak zero‐phonon‐line emission and large spectral diffusion, limit its potential for large‐scale deployment in quantum nodes. This has motivated the investigation for alternative quantum emitters that combine long‐time memory and coherent optical properties together. The emerging group‐IV split‐vacancy color centers in diamond, such as silicon‐vacancy, germanium‐vacancy, tin‐vacancy, and lead‐vacancy centers, are promising candidates of this ongoing exploration. These quantum emitters simultaneously possess microsecond spin coherence time and optically bright transitions with narrow linewidths. This review reports recent efforts on extending the spin coherence time of these color centers via temperature, strain, and charge control, which paves the road towards constructing solid‐based matter–photon interface for quantum network applications.

show abstract

(\approx 20 GHz)

by providing a large‐range frequency tunability (

\approx 100 normalGHz)

…”

Section: Photon‐mediated Spin–spin Interaction In Xv− Centermentioning

confidence: 99%

Building Blocks for Quantum Network Based on Group‐IV Split‐Vacancy Centers in Diamond

2019

View full text Add to dashboard Cite

show abstract

“…While the conversion yield is low at this point, this can be circumvented by employing larger implantation doses or other proven methods such as high temperature annealing and electron irradiation. More significantly, with the demonstrated technique, the GeV can be positioned with a nanometerscale spatial accuracy which will greatly benefit various of photonic structures such as photonic nano cavities [30][31][32] and waveguides [22,33]. Another possible direction is that this method can help generate coupled electron spins in germanium center as well as provide a platform to achieve entanglement between spins on the condition that the coherence time of GeV centers could be further enhanced.…”

mentioning

confidence: 99%

Direct writing of single germanium vacancy center arrays in diamond

et al. 2018

View full text Add to dashboard Cite

Color centers in diamond are promising solid-state qubits for scalable quantum photonics applications. Amongst many defects, those with inversion symmetry are of an interest due to their promising optical properties. In this work, we demonstrate a maskless implantation of an array of bright, single germanium vacancy (GeV) centers in diamond. Employing the direct focused ion beam technique, single GeV emitters are engineered with the spatial accuracy of tens of nanometers. The single GeV creation ratio reaches as high as 53% with the dose of 200 Ge + ions per spot. The presented fabrication method is promising for future nanofabrication of integrated photonic structures with GeV emitters as a leading platform for spin-spin interactions.

show abstract

“…While SiV centers already naturally emit a large portion of the radiated light into the ZPL, coupling to optical cavities can be employed to improve their quantum efficiency by enhancing their emission rate and reducing the probability of non‐radiative decays . Purcell enhancement experiments have been demonstrated using either photonic structures fabricated around defects generated by in situ doping, or SiV centers generated by focused ion beams in the center of the cavity . A record Purcell factor F P ≃26, corresponding to a 42‐fold enhancement in emission intensity, has been recently reported in ref.…”

Section: Coupling Color Centers To Photonic Structuresmentioning

confidence: 99%

“…A record Purcell factor F P ≃26, corresponding to a 42‐fold enhancement in emission intensity, has been recently reported in ref. [] using a 1D photonic crystal cavity.…”

Section: Coupling Color Centers To Photonic Structuresmentioning

confidence: 99%

“…Additional essential devices are optical resonators or cavities . Especially in the case of color centers in diamond, they play an important role for the Purcell enhancement of the photon emission, but are also used as narrow‐band filters, for signal routing and waveguide characterization. A wide range of cavities are in use which are characterized by their optical quality factor (Q‐factor).…”

Section: Fabrication Of Integrated Photonic Circuitsmentioning

confidence: 99%

See 1 more Smart Citation

Diamond as a Platform for Integrated Quantum Photonics

Lenzini¹,

Gruhler²,

Walter³

et al. 2018

Adv Quantum Tech

View full text Add to dashboard Cite

Integrated quantum photonics enables the generation, manipulation, and detection of quantum states of light in miniaturized waveguide circuits. Implementation of these three operations in a single integrated platform is a crucial step toward a fully scalable approach to quantum photonic technologies. In this context, diamond has emerged as a particularly promising material as it naturally combines a large transparency range for the fabrication of low‐loss photonic circuits, and a variety of optically active defects for the realization of efficient single‐photon emitters. Furthermore, its high Young's modulus makes it ideal for the implementation of tunable optomechanical devices for active quantum state manipulation. This review reports recent progress on the realization of the main components required for a diamond‐based integrated quantum photonic architecture: single‐photon emitters, static and actively tunable waveguide circuits, and, as a last building block, integrated superconducting single‐photon detectors.

show abstract

Strongly Cavity-Enhanced Spontaneous Emission from Silicon-Vacancy Centers in Diamond

Cited by 140 publications

References 60 publications

Building Blocks for Quantum Network Based on Group‐IV Split‐Vacancy Centers in Diamond

Building Blocks for Quantum Network Based on Group‐IV Split‐Vacancy Centers in Diamond

Direct writing of single germanium vacancy center arrays in diamond

Diamond as a Platform for Integrated Quantum Photonics

Contact Info

Product

Resources

About