Optomechanical Gigahertz Oscillator made of a Two Photon Absorption free piezoelectric III/V semiconductor

Ghorbel, Inès; Swiadek, François; Zhu, Rui; Dolfi, Daniel; Lehoucq, Gaëlle; Martin, Aude; Moille, Grégory; Morvan, Loïc; Braive, Rémy; Combrié, Sylvain; Rossi, Alfredo De

doi:10.48550/arxiv.1901.05922

2019

DOI: 10.48550/arxiv.1901.05922

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Optomechanical Gigahertz Oscillator made of a Two Photon Absorption free piezoelectric III/V semiconductor

Inès Ghorbel¹,

François Swiadek²,

Rui Zhu³

et al.

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“…The low mass of the mechanical mode and small optical cavity mode volume allow for strong optomechanical coupling and the monolithic design facilitates on-chip integration with other quantum systems. While optomechanical crystals have been fabricated out of materials such as GaAs [6,7,11], GaP [12,13], LiNbO 3 [14], SiN [15] AlN [5,16] and diamond [17], amongst others, to date nonclassical optomechanical interaction in such structures has been limited to silicon-based devices.…”

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Gallium Phosphide as a Piezoelectric Platform for Quantum Optomechanics

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Recent years have seen extraordinary progress in creating quantum states of mechanical oscillators, leading to great interest in potential applications for such systems in both fundamental as well as applied quantum science. One example is the use of these devices as transducers between otherwise disparate quantum systems. In this regard, a promising approach is to build integrated piezoelectric optomechanical devices, that are then coupled to microwave circuits. Optical absorption, low quality factors and other challenges have up to now prevented operation in the quantum regime, however. Here, we design and characterize such a piezoelectric optomechanical device fabricated from gallium phosphide in which a 2.9 GHz mechanical mode is coupled to a high quality factor optical resonator in the telecom band. The large electronic bandgap and the resulting low optical absorption of this new material, on par with devices fabricated from silicon, allows us to demonstrate quantum behavior of the structure. This not only opens the way for realizing noise-free quantum transduction between microwaves and optics, but in principle also from various color centers with optical transitions in the near visible to the telecom band. * These authors contributed equally to this work. † s.groeblacher@tudelft.nl

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Gallium Phosphide as a Piezoelectric Platform for Quantum Optomechanics

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Optomechanical Gigahertz Oscillator made of a Two Photon Absorption free piezoelectric III/V semiconductor

Cited by 1 publication

References 0 publications

Gallium Phosphide as a Piezoelectric Platform for Quantum Optomechanics

Gallium Phosphide as a Piezoelectric Platform for Quantum Optomechanics

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