Integrated photonic devices in single crystal diamond

Mi, Sichen; Kiss, Marcell; Graziosi, Teodoro; Quack, Niels

doi:10.1088/2515-7647/aba171

Cited by 35 publications

(26 citation statements)

References 246 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Over the past decade, an abundance of individual components for integrated diamond photonics has been investigated in academic research. For example, grating couplers, waveguides, phase shifters, power couplers, cavities, optomechanical resonators, SPSs, light emitting diodes, Raman laser, supercontinuum generation and detectors have all been demonstrated [52]. These components have to be matured and their operation optimized for a selected wavelength range; for scalable quantum operation, their insertion loss has to be drastically reduced; finally, they must be combined into a standardized technology.…”

Section: Current and Future Challengesmentioning

confidence: 99%

2022 Roadmap on integrated quantum photonics

et al. 2022

Self Cite

View full text Add to dashboard Cite

Integrated photonics will play a key role in quantum systems as they grow from few-qubit prototypes to tens of thousands of qubits. The underlying optical quantum technologies can only be realized through the integration of these components onto quantum photonic integrated circuits (QPICs) with accompanying electronics. In the last decade, remarkable advances in quantum photonic integration have enabled table-top experiments to be scaled down to prototype chips with improvements in efficiency, robustness, and key performance metrics. These advances have enabled integrated quantum photonic technologies combining up to 650 optical and electrical components onto a single chip that are capable of programmable quantum information processing, chip-to-chip networking, hybrid quantum system integration, and high-speed communications. In this roadmap article, we highlight the status, current and future challenges, and emerging technologies in several key research areas in integrated quantum photonics, including photonic platforms, quantum and classical light sources, quantum frequency conversion, integrated detectors, and applications in computing, communications, and sensing. With advances in materials, photonic design architectures, fabrication and integration processes, packaging, and testing and benchmarking, in the next decade we can expect a transition from single- and few-function prototypes to large-scale integration of multi-functional and reconfigurable devices that will have a transformative impact on quantum information science and engineering.

show abstract

Section: Current and Future Challengesmentioning

confidence: 99%

2022 Roadmap on integrated quantum photonics

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…Besides SOI and GOI, silicon on nitride, silicon on alumina, and germanium on silicon (or silicongermanium alloy on silicon) have been proposed as novel waveguide alternatives in MIR, due to their capability of avoiding absorption by silica bottom cladding, especially above 3.5 µm [65,66]. Diamond also appeared recently on the scene as an ideal material with a transparency range from 0.22-20 µm; nevertheless, its applications are limited due to the difficulty of processing and high cost [67].…”

Section: Waveguidesmentioning

confidence: 99%

Integrated Nanophotonic Waveguide-Based Devices for IR and Raman Gas Spectroscopy

Alberti

Datta

Jágerská

2021

Sensors

View full text Add to dashboard Cite

On-chip devices for absorption spectroscopy and Raman spectroscopy have been developing rapidly in the last few years, triggered by the growing availability of compact and affordable tunable lasers, detectors, and on-chip spectrometers. Material processing that is compatible with mass production has been proven to be capable of long low-loss waveguides of sophisticated designs, which are indispensable for high-light–analyte interactions. Sensitivity and selectivity have been further improved by the development of sorbent cladding. In this review, we discuss the latest advances and challenges in the field of waveguide-enhanced Raman spectroscopy (WERS) and waveguide infrared absorption spectroscopy (WIRAS). The development of integrated light sources and detectors toward miniaturization will be presented, together with the recent advances on waveguides and cladding to improve sensitivity. The latest reports on gas-sensing applications and main configurations for WERS and WIRAS will be described, and the most relevant figures of merit and limitations of different sensor realizations summarized.

show abstract

“…Using current technologies diamond can be readily grown using chemical vapour deposition (CVD) techniques, with qualities matching those of the natural gemstone. In particular, impressive wafer-scale single crystal diamond (SCD) growth using heteroepitaxy of diamond on iridium substrates has been demonstrated for thick films (tens of microns and above) [12], which may eventually offer a viable route to mass production of thin film SCD using layer detachment and transfer techniques. In addition, several fabrication routes for realising nanophotonic structures in bulk SCD have been developed, including bonding and plasma thinning of SCD [13], carving out waveguide structures from bulk SCD [14] and layer isolation using ion beam implantation [15].…”

Section: Materials Platform Characteristicsmentioning

confidence: 99%

Suspended nanocrystalline diamond ridge waveguides designed for the mid-infrared

Rahmati

Mashanovich

Nezhad

2021

J. Opt.

View full text Add to dashboard Cite

A comprehensive study and design of air-clad suspended ridge diamond waveguides for operation across the 2.5-16 µm spectral range is presented, specifically targeting nanocrystalline diamond (NCD) thin films directly grown on silicon substrates. Three film thicknesses of 520, 1000 and 2000 nm are considered, to cover overlapping sub-bands of 2.5-5, 4-9 and 8-16 µm, respectively. Within each sub-band, the waveguide dimensions for single mode quasi-TE operation are found and the waveguide material losses and bending losses are estimated at each design point. In addition, in each case the minimum required undercut depth and etch hole placement for optical isolation of the waveguide mode from the silicon substrate is also quantified. We also estimate the losses associated with scattering from surface roughness, which is an unavoidable byproduct of the NCD thin film growth process. Our results indicate that despite the relatively low film thickness-to-wavelength ratio, mechanically stable waveguides with good optical confinement and low material and bending losses can be realised to cover the full 2.5-16 µm range. In addition, scattering loss estimations predict a drastic drop in roughness-induced scattering losses above 6 µm, even for relatively rough films. In addition to highlighting the utility of suspended NCD as a versatile platform for mid-infrared integrated photonics, the approaches and results presented here can be used to inform the design of suspended air-clad waveguides in other material platforms.

show abstract

Integrated photonic devices in single crystal diamond

Cited by 35 publications

References 246 publications

2022 Roadmap on integrated quantum photonics

2022 Roadmap on integrated quantum photonics

Integrated Nanophotonic Waveguide-Based Devices for IR and Raman Gas Spectroscopy

Suspended nanocrystalline diamond ridge waveguides designed for the mid-infrared

Contact Info

Product

Resources

About