High Q-Factor Diamond Optomechanical Resonators with Silicon Vacancy Centers at Millikelvin Temperatures

被引：4

作者：

Joe, Graham ^{[1
]}

Chia, Cleaven ^{[1
,2
]}

Pingault, Benjamin ^{[1
,3
,4
,5
]}

Haas, Michael ^{[1
]}

Chalupnik, Michelle ^{[1
]}

Cornell, Eliza ^{[1
]}

Kuruma, Kazuhiro ^{[1
]}

Machielse, Bartholomeus ^{[6
]}

Sinclair, Neil ^{[1
]}

Meesala, Srujan ^{[7
]}

Loncar, Marko ^{[1
]}

机构：

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

[2] ASTAR, Inst Mat Res & Engn IMRE, Singapore 138634, Singapore

[3] Delft Univ Technol, QuTech, NL-2600 GA Delft, Netherlands

[4] Argonne Natl Lab, Ctr Mol Engn, Lemont, IL 60439 USA

[5] Argonne Natl Lab, Mat Sci Div, Lemont, IL 60439 USA

[6] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[7] CALTECH, Inst Quantum Informat & Matter & Thomas J Watson S, Lab Appl Phys, Pasadena, CA 91125 USA

来源：

NANO LETTERS | 2024年 / 24卷 / 23期

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

optomechanics; silicon vacancy; diamond; phonons;

D O I：

10.1021/acs.nanolett.3c04953

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Phonons are envisioned as coherent intermediaries between different types of quantum systems. Engineered nanoscale devices, such as optomechanical crystals (OMCs), provide a platform to utilize phonons as quantum information carriers. Here we demonstrate OMCs in diamond designed for strong for interactions between phonons and a silicon vacancy (SiV) spin. Using optical measurements at millikelvin temperatures, we measure a line width of 13 kHz (Q-factor of similar to 4.4 x 10(5)) for a 6 GHz acoustic mode, a record for diamond in the GHz frequency range and within an order of magnitude of state-of-the-art line widths for OMCs in silicon. We investigate SiV optical and spin properties in these devices and outline a path toward a coherent spin-phonon interface.

引用

页码：6831 / 6837

页数：7

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