Waveguide-integrated single-crystalline GaP resonators on diamond

Thomas, N.; Barbour, R. James; Song, Youngshin; Lee, Minjoo Larry; Fu, Kai-Mei C.

doi:10.1364/oe.22.013555

Cited by 38 publications

(30 citation statements)

References 47 publications

(54 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The described transfer process was used due to its compatibility with transfer to mm-scale diamond chips for quantum information applications using the process described in Refs. [50][51][52]. Recently, wafer-scale GaP membrane transfer to silicon oxide has been realized by other groups via direct wafer bonding followed by substrate removal [45,53].…”

Section: Fabrication and Testingmentioning

confidence: 99%

400%/W second harmonic conversion efficiency in 14 μm-diameter gallium phosphide-on-oxide resonators

et al. 2018

Self Cite

View full text Add to dashboard Cite

Second harmonic conversion from 1550 nm to 775 nm with an efficiency of 400% W −1 is demonstrated in a gallium phosphide (GaP) on oxide integrated photonic platform. The platform consists of doubly-resonant, phase-matched ring resonators with quality factors Q ∼ 10 4 , low mode volumes V ∼ 30(λ/n) 3 , and high nonlinear mode overlaps. Measurements and simulations indicate that conversion efficiencies can be increased by a factor of 20 by improving the waveguide-cavity coupling to achieve critical coupling in current devices.

show abstract

Section: Fabrication and Testingmentioning

confidence: 99%

400%/W second harmonic conversion efficiency in 14 μm-diameter gallium phosphide-on-oxide resonators

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…GaP as a photonic platform has several attracting features: GaP provides a higher refractive index compared to diamond thus enabling waveguiding in the GaP layer. GaP features electro‐optic properties which enable optical on‐chip modulation, and well‐established fabrication processes allowing wafer‐scale processing with a high yield . Based on the GaP‐on‐diamond hybrid system, coupling of NV centers to waveguides and to optical resonators has been demonstrated.…”

Section: Coupling Color Centers To Photonic Structuresmentioning

confidence: 99%

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

“…Many efforts are put into this area and progresses have been made to overcome the TIR in bulk diamonds. These include solid immersion lenses [17], vertical nanowire and pillars [18,19], bottom up structures [20,21], waveguides [22][23][24], optical cavities [1,[25][26][27][28][29][30], and hybrid photonic structures [31][32][33]. Among them, sculpting solid immersion lenses in the diamond surface is an ideal natural choice and have been used in recent experiment of loophole-free Bell inequality violation [14].…”

Section: Introductionmentioning

confidence: 99%

Demonstration of diamond microlens structures by a three-dimensional (3D) dual-mask method

Zhang¹,

Li²,

Liu³

et al. 2017

Opt. Express

View full text Add to dashboard Cite

This is the final published version of the article (version of record). It first appeared online via OSA at https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-25-13-15572&id=368323 . Please refer to any applicable terms of use of the publisher. University of Bristol -Explore Bristol Research General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Abstract: Diamond is a promising platform for quantum information technologies (QITs) mainly due to the properties of color centers including spin read-out, magnetic field sensing, and entanglement between different nitrogen-vacancy (NV) centers. High photon collection efficiency is essential for a high fidelity optical single-shot readout of electronic spin in the color center. To avoid total internal reflection, sculpting solid immersion lenses in the diamond surface is an ideal natural choice. Three-dimensional (3D) microstructures can be made in a photoresist material by a special lithography method. These structures can be subsequently transferred into silicon, diamond or other semiconductors by plasma etching with appropriate selectivity. However, this method cannot be directly implemented into making large height diamond microlenses where the selectivity between diamond and the photoresist is very low. In this work, we propose and demonstrate a dual mask method to achieve an overall high selectivity between diamond and photoresist via the interlayer of single crystalline silicon. By tuning the process parameters of the two etching steps, diamond micro-lenses with large variable height are successfully demonstrated.

show abstract

Waveguide-integrated single-crystalline GaP resonators on diamond

Cited by 38 publications

References 47 publications

400%/W second harmonic conversion efficiency in 14 μm-diameter gallium phosphide-on-oxide resonators

400%/W second harmonic conversion efficiency in 14 μm-diameter gallium phosphide-on-oxide resonators

Diamond as a Platform for Integrated Quantum Photonics

Demonstration of diamond microlens structures by a three-dimensional (3D) dual-mask method

Contact Info

Product

Resources

About