A5016459873- Photonic and Optical Devices
- Quantum optics and atomic interactions
- Mechanical and Optical Resonators
- Photorefractive and Nonlinear Optics
- Advanced Fiber Laser Technologies
- Photonic Crystals and Applications
- Quantum Information and Cryptography
- Semiconductor Lasers and Optical Devices
- Semiconductor Quantum Structures and Devices
- Optical Network Technologies
- Advanced biosensing and bioanalysis techniques
- RNA Interference and Gene Delivery
- Plasmonic and Surface Plasmon Research
- Magneto-Optical Properties and Applications
- Optical and Acousto-Optic Technologies
- Atomic and Subatomic Physics Research
California Institute of Technology
2014-2019
A rare-earth quantum memory The development of global networks will require chip-scale optically addressable memories for state storage, manipulation, and swapping. Zhong et al. fabricated a nanostructured photonic crystal cavity in rare-earth-doped material to form high-fidelity (see the Perspective by Waks Goldschmidt). enhanced light-matter interaction, allowing states be stored retrieved from on demand. high fidelity small footprint device offer powerful building block information...
Quantum light-matter interfaces (QLMIs) connecting stationary qubits to photons will enable optical networks for quantum communications, precise global time keeping, photon switching, and studies of fundamental physics. Rare-earth-ion (REI) doped crystals are state-of-the-art materials memories transducers between photons, microwave spin waves. Here we demonstrate coupling an ensemble neodymium REIs photonic nano-cavities fabricated in the yttrium orthosilicate host crystal. Cavity...
Secure quantum communication over long distances is hindered by photon loss---a simple problem, complicated the fact that signals cannot be amplified without adding noise. The authors present on-chip storage of light at telecommunication wavelength (around 1539 nm) for up to 10 $\ensuremath{\mu}$s, as an enabling technology repeater networks, which use distributed entanglement overcome attenuation. High-fidelity demonstrated in a nanophotonic resonator fabricated yttrium orthosilicate doped...
Numerous bulk crystalline materials exhibit attractive nonlinear and luminescent properties for classical quantum optical applications. A chip-scale platform high quality factor nanocavities in these will enable new optoelectronic devices light-matter interfaces. In this article, photonic crystal nanobeam resonators fabricated using focused ion beam milling insulators, such as rare-earth doped yttrium orthosilicate vanadate, are demonstrated. Operation the visible, near infrared, telecom...
Erbium dopants in crystals exhibit highly coherent optical transitions well suited for solid-state quantum memories operating the telecom band. Here, we demonstrate coupling of erbium dopant ions yttrium orthosilicate to a photonic crystal cavity fabricated directly host using focused ion beam milling. The leads reduction photoluminescence lifetime and enhancement depth microns-long devices, which will enable on-chip memories.
A scalable platform for on-chip optical quantum networks will rely on standard top-down nanofabrication techniques and solid-state emitters with long coherence times. We present a new hybrid that integrates amorphous silicon photonic waveguides microresonators fabricated top of yttrium orthosilicate substrate doped erbium ions. The quality factor one such resonator was measured to exceed 100,000 the ensemble cooperativity be 0.54. resonator-coupled ions exhibited spontaneous emission rate...
On-chip nanophotonic cavities will advance quantum information science and measurement because they enable efficient interaction between photons long-lived solid-state spins, such as those associated with rare-earth ions in crystals. The enhanced photon-ion creates new opportunities for all-optical control using the ac Stark shift. Toward this end, we characterize off-resonant optical fields Nd$^{3+}$-ion dopants a photonic crystal resonator fabricated from yttrium orthovanadate (YVO$_4$)....
An yttrium orthosilicate nanophotonic resonator is fabricated with resonances near the 4I9/2-4F3/2 hyperfine transition of Neodymium ions. Measured absorption by embedded in a nanobeam indicates promising prospect for coupling ions to our nano-resonator.
We demonstrate optical photon storage in a Nd:YSO nano-resonator using multi-mode stimulated echo and atomic frequency comb protocols. Current results indicate strong prospects for on-chip nanophotonic quantum memories rare-earth-ions.
Rare-earth-ion doped crystals are state-of-the-art materials for optical quantum memories and transducers between microwave photons. Here we describe our progress towards a nanophotonic memory based on rare-earth (Neodymium) yttrium orthosilicate (YSO) photonic crystal resonator. The Purcell-enhanced coupling of the 883 nm transitions Neodymium (Nd<sup>3+</sup>) ions to nano-resonator results in increased depth, which could principle facilitate highly efficient photon storage via cavity...
We demonstrate a hybrid on-chip photonics platform based on crystalline silicon resonators and waveguides patterned top of carbide. The devices were fabricated with membrane transfer followed by standard electron beam patterning procedures. allows the integration high quality color centers in carbide operating near infrared for spin-photon interfaces used quantum information processing applications. measure waveguide-coupled ring loaded factors up to 23 000 at cryogenic temperatures.
We report a scheme for detecting single rare-earth-ions coupled to an Yttrium Orthosilicate (YSO) nanophotonic resonator, which could enable precise optical addressing of individual ions as qubits quantum information applications.
With an assortment of narrow line-width transitions spanning the visible and IR spectrum long spin coherence times, rare-earth doped crystals are leading material system for solid-state quantum memories. Integrating these materials in on-chip optical platform would create opportunities highly integrated light-matter interfaces communication computing. Nano-photonic resonators with high quality factors small mode volumes required efficient coupling to dipole moment ion transitions. However,...
Gallium arsenide photonic crystal resonators are designed and fabricated for evanescent coupling to localized ensembles of rare-earth ions in crystalline hosts. These devices will enable nano-scale on-chip optical quantum memories.
Optical quantum memories will enable technologies including long distance communication and modular computing. Rare earth ion doped crystals provide an excellent solid state platform for optical memories. Among rare earths, erbium is particularly appealing due to its long-lived telecom-wavelength resonance, allowing integration with silicon photonics existing technology infrastructure. We present on-chip all-optical memory at telecom wavelengths using a nanobeam photonic crystal cavity...
The integration of rare-earth ions in an on-chip photonic platform would enable quantum repeaters and scalable networks. While ensemble-based memories have been routinely realized, implementing single ion qubit remains outstanding challenge due to its weak photoluminescence. Here we demonstrate a nanophotonic consisting yttrium vanadate (YVO) crystal nanobeam resonators coupled spectrally dilute ensemble Nd ions. cavity acts as memory when prepared with spectral hole burning, meanwhile it...
Rare earth quantum light-matter interfaces (QLMIs) are uniquely suited for various communication applications, including memories and optical to microwave transducers. Among rare earths, erbium QLMIs particularly appealing due erbium's long lived telecom wavelength resonance, allowing integration with existing technology infrastructure. Micro-resonator have advantages over bulk crystal memories. They provide the opportunity on-chip integration; example, resonators can be integrated...
Quantum light-matter interfaces that reversibly map the quantum state of photons onto states atoms, are essential components in engineering toolbox with applications communication, computing, and quantum-enabled sensing. In this talk I present our progress towards developing on-chip based on nanophotonic resonators fabricated rare-earth-doped crystals known to exhibit longest optical spin coherence times solid state. We recently demonstrated coherent control neodymium (Nd3+) ions coupled...
I present our progress towards developing on-chip quantum light-matter interfaces like memories and transductors based on nanophotonic resonators coupled to rare-earth ions (Neodymium, Erbium, Ytterbium) in crystals.
Quantum interconnects allow disparate quantum systems to be entangled, leading more powerful integrated technology and increases in scalability. The foundation for such technology, including photonic memories coherent microwave-to-optical (M2O) transducers, have already been developed rare-earth ion (REI) crystals. Here we demonstrate improved REI device functionality an on-chip platform that dramatically strengthens the ions' interactions with optical fields integrates planar microwave...
We present hybrid crystalline-silicon (c-Si) ring resonators on top of 4H silicon carbide with measured quality factor ~9600 for coupling to spin qubits like divacancies and Cr ions future applications in quantum information networks.