Narrow optical linewidths in erbium implanted in TiO${}_2$

Abstract

Atomic and atom-like defects in the solid-state are widely explored for quantum computers, networks and sensors. Rare earth ions are an attractive class of atomic defects that feature narrow spin and optical transitions that are isolated from the host crystal, allowing incorporation into a wide range of materials. However, the realization of long electronic spin coherence times is hampered by magnetic noise from abundant nuclear spins in the most widely studied host crystals. Here, we demonstrate that Er${}^{3+}$ ions can be introduced via ion implantation into TiO${}_2$, a host crystal that has not been studied extensively for rare earth ions and has a low natural abundance of nuclear spins. We observe efficient incorporation of the implanted Er${}^{3+}$ into the Ti${}^{4+}$ site (40% yield), and measure narrow inhomogeneous spin and optical linewidths (20 and 460 MHz, respectively) that are comparable to bulk-doped crystalline hosts for Er${}^{3+}$. This work demonstrates that ion implantation is a viable path to studying rare earth ions in new hosts, and is a significant step towards realizing individually addressed rare earth ions with long spin coherence times for quantum technologies.

References in corpus (20)

• Single-Photon Switching and Entanglement of Solid-State Qubits in an Integrated Nanophotonic System
• Quantum Storage of Photonic Entanglement in a Crystal
• Isolating and enhancing the emission of single erbium ions using a silicon nanophotonic cavity
• Chip-scale nanofabrication of single spins and spin arrays in diamond
• Quantum teleportation from a telecom-wavelength photon to a solid-state quantum memory
• Observation of an environmentally insensitive solid state spin defect in diamond
• Magnetic Dipole and Electric Quadrupole Transitions in the Trivalent Lanthanide Series: Calculated Emission Rates and Oscillator Strengths
• A magneto-optic modulator with unit quantum effciency
• Optically addressing single rare-earth ions in a nanophotonic cavity
• Interfacing Superconducting Qubits and Telecom Photons via a Rare-Earth Doped Crystal
• Coherent frequency up-conversion of microwaves to the optical telecommunications band in an Er:YSO crystal
• Simultaneous coherence enhancement of optical and microwave transitions in solid-state electronic spins
• Deterministic single ion implantation of rare-earth ions for nanometer resolution colour center generation
• Reducing decoherence in optical and spin transitions in rare-earth-ion doped materials
• All-optical preparation of coherent dark states of a single rare earth ion spin in a crystal
• Coherent spin dynamics of ytterbium ions in yttrium orthosilicate
• High-resolution spectroscopy of single Pr${}^{3+}$ ions on the ${}^3$H${}_4$-${}^1$D${}_2$ transition
• Production yield of rare-earth ions implanted into an optical crystal
• Hybrid quantum circuit with implanted erbium ions
• Angular dependent micro-ESR characterization of a locally doped Gd3+:Al2O3 system

Cited by in corpus (19)

• Semiconductor Qubits In Practice
• Optical quantum nondemolition measurement of a solid-state spin without a cycling transition
• Indistinguishable telecom band photons from a single erbium ion in the solid state
• Parallel single-shot measurement and coherent control of solid-state spins below the diffraction limit
• Cavity-enhanced quantum network nodes
• Erbium-Implanted Materials for Quantum Communication Applications
• Coherent and Purcell-enhanced emission from erbium dopants in a cryogenic high-Q resonator
• Narrow optical transitions in erbium-implanted silicon waveguides
• Coherent control of a nuclear spin via interactions with a rare-earth ion in the solid-state
• Purcell enhancement of erbium ions in TiO${}_2$ on silicon nanocavities
• Characterization of Er${}^{3+}$:YVO${}_4$ for microwave to optical transduction
• A perspective on the pathway to a scalable quantum internet using rare-earth ions
• Optical and spin coherence of Er${}^{3+}$ in epitaxial CeO${}_2$ on silicon
• Isolation of individual Er quantum emitters in anatase TiO${}_2$ on Si photonics
• Enhancement of Microwave to Optical Spin-Based Quantum Transduction via a Magnon Mode
• Erbium Quantum Memory Platform with Long Optical Coherence via Back-End of Line Deposition on Foundry-Fabricated Photonics
• Narrow magneto-optical transitions in Erbium implanted silicon carbide-on-insulator
• Nanocavity-mediated Purcell enhancement of Er in TiO${}_2$ thin films grown via atomic layer deposition
• Non-Equilibrium Origin of Native Ring Anisotropy in Amorphous Systems