Integrated phononic waveguides in diamond

被引：4

作者：

Ding, Sophie Weiyi ^{[1
]}

Pingault, Benjamin ^{[1
,2
,3
]}

Shao, Linbo ^{[1
,4
]}

Sinclair, Neil ^{[1
]}

Machielse, Bartholomeus ^{[1
,5
]}

Chia, Cleaven ^{[1
]}

Maity, Smarak ^{[1
]}

Loncar, Marko ^{[1
]}

机构：

[1] Harvard Univ, John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[2] Delft Univ Technol, QuTech, POB 5046, NL-2600 Delft, Netherlands

[3] Delft Univ Technol, Kavli Inst Nanosci, POB 5046, NL-2600 Delft, Netherlands

[4] Virginia Tech, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA

[5] AWS Ctr Quantum Networking, Boston, MA 02135 USA

来源：

PHYSICAL REVIEW APPLIED | 2024年 / 21卷 / 01期

基金：

欧盟地平线“2020”; 美国国家科学基金会;

关键词：

Compendex;

D O I：

10.1103/PhysRevApplied.21.014034

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Efficient generation, guiding, and detection of phonons, or mechanical vibrations, are of interest in various fields, including radio-frequency communication, sensing, and quantum information. Diamond is a useful platform for phononics because of the presence of strain-sensitive spin qubits, and its high Young's modulus, which allows for low-loss gigahertz devices. We demonstrate a diamond phononic waveguide platform for generating, guiding, and detecting gigahertz-frequency surface acoustic wave (SAW) phonons. We generate SAWs using interdigital transducers integrated on AlN/diamond and observe SAW transmission at 4-5 GHz through both ridge and suspended waveguides, with wavelength-scale cross sections (approximately 1 m(2)) to maximize spin-phonon interaction. This work is a crucial step for developing acoustic components for quantum phononic circuits with strain-sensitive color centers in diamond.

引用

页数：10

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