High frequency lithium niobate film-thickness-mode optomechanical resonator
- Yale Univ., New Haven, CT (United States)
- Univ. of Science and Technology of China, Hefei (China)
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.
- Research Organization:
- Yale Univ., New Haven, CT (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); US Army Research Office (ARO)
- Grant/Contract Number:
- SC0019406; W911NF-18-1-0020; EFMA-1640959
- OSTI ID:
- 1803797
- Alternate ID(s):
- OSTI ID: 1668435
- Journal Information:
- Applied Physics Letters, Vol. 117, Issue 13; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Bidirectional interconversion of microwave and light with thin-film lithium niobate
Cavity piezo-mechanics for superconducting-nanophotonic quantum interface