TY - JOUR
T1 - Integrated phononic waveguides in diamond
AU - Ding, Sophie Weiyi
AU - Pingault, Benjamin
AU - Shao, Linbo
AU - Sinclair, Neil
AU - Machielse, Bartholomeus
AU - Chia, Cleaven
AU - Maity, Smarak
AU - Lončar, Marko
PY - 2024
Y1 - 2024
N2 - 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 m2) 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.
AB - 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 m2) 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.
UR - http://www.scopus.com/inward/record.url?scp=85183904968&partnerID=8YFLogxK
U2 - 10.1103/PhysRevApplied.21.014034
DO - 10.1103/PhysRevApplied.21.014034
M3 - Article
AN - SCOPUS:85183904968
SN - 2331-7019
VL - 21
JO - Physical Review Applied
JF - Physical Review Applied
IS - 1
M1 - 014034
ER -