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Title: High frequency lithium niobate film-thickness-mode optomechanical resonator

Abstract

High-frequency optomechanical resonators are in demand as transduction devices to bridge microwave and optical fields. Thin-film lithium niobate is a promising platform for implementing high-frequency optomechanics for its low optical loss and strong piezoelectric coefficients. However, its strong piezoelectricity is also known to introduce excess phonon loss. Here, we present lithium niobate optomechanical resonators with film-thickness-mode mechanical resonances up to 5.2 GHz, reaching the operating frequency regime of superconducting qubits. By engineering the mechanical anchor to minimize the phonon loss, we achieve a high quality factor up to 12 500 at cryogenic temperatures and, hence, a frequency-quality factor product of 6.6 × 1013. Our system also features interference between piezo-optomechanical and electro-optic modulation. A theoretical model is derived to analyze these two effects and their interference.

Authors:
 [1]; ORCiD logo [1]; ORCiD logo [2];  [1];  [1]; ORCiD logo [1]
  1. Yale Univ., New Haven, CT (United States)
  2. Univ. of Science and Technology of China, Hefei (China)
Publication Date:
Research Org.:
Yale Univ., New Haven, CT (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); US Army Research Office (ARO)
OSTI Identifier:
1803797
Alternate Identifier(s):
OSTI ID: 1668435
Grant/Contract Number:  
SC0019406; W911NF-18-1-0020; EFMA-1640959
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 117; Journal Issue: 13; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; Physics

Citation Formats

Shen, Mohan, Xie, Jiacheng, Zou, Chang-Ling, Xu, Yuntao, Fu, Wei, and Tang, Hong X. High frequency lithium niobate film-thickness-mode optomechanical resonator. United States: N. p., 2020. Web. doi:10.1063/5.0020019.
Shen, Mohan, Xie, Jiacheng, Zou, Chang-Ling, Xu, Yuntao, Fu, Wei, & Tang, Hong X. High frequency lithium niobate film-thickness-mode optomechanical resonator. United States. https://doi.org/10.1063/5.0020019
Shen, Mohan, Xie, Jiacheng, Zou, Chang-Ling, Xu, Yuntao, Fu, Wei, and Tang, Hong X. Tue . "High frequency lithium niobate film-thickness-mode optomechanical resonator". United States. https://doi.org/10.1063/5.0020019. https://www.osti.gov/servlets/purl/1803797.
@article{osti_1803797,
title = {High frequency lithium niobate film-thickness-mode optomechanical resonator},
author = {Shen, Mohan and Xie, Jiacheng and Zou, Chang-Ling and Xu, Yuntao and Fu, Wei and Tang, Hong X.},
abstractNote = {High-frequency optomechanical resonators are in demand as transduction devices to bridge microwave and optical fields. Thin-film lithium niobate is a promising platform for implementing high-frequency optomechanics for its low optical loss and strong piezoelectric coefficients. However, its strong piezoelectricity is also known to introduce excess phonon loss. Here, we present lithium niobate optomechanical resonators with film-thickness-mode mechanical resonances up to 5.2 GHz, reaching the operating frequency regime of superconducting qubits. By engineering the mechanical anchor to minimize the phonon loss, we achieve a high quality factor up to 12 500 at cryogenic temperatures and, hence, a frequency-quality factor product of 6.6 × 1013. Our system also features interference between piezo-optomechanical and electro-optic modulation. A theoretical model is derived to analyze these two effects and their interference.},
doi = {10.1063/5.0020019},
journal = {Applied Physics Letters},
number = 13,
volume = 117,
place = {United States},
year = {Tue Sep 29 00:00:00 EDT 2020},
month = {Tue Sep 29 00:00:00 EDT 2020}
}

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