Net on-chip Brillouin gain based on suspended silicon nanowires

Abstract

The century-old study of photon-phonon coupling has seen a remarkable revival in the past decade. Driven by early observations of dynamical back-action, the field progressed to ground-state cooling and the counting of individual phonons. A recent branch investigates the potential of traveling-wave, optically broadband photon-phonon interaction in silicon circuits. Here, we report continuous-wave Brillouin gain exceeding the optical losses in a series of suspended silicon beams, a step towards selective on-chip amplifiers. We obtain efficiencies up to $10^4{\text{W}}^{-1}{\text{m}}^{-1}$, the highest to date in the phononic gigahertz range. We also find indications that geometric disorder poses a significant challenge towards nanoscale phonon-based technologies.

14 pages, 8 figures

References in corpus (12)

• Optomechanically induced transparency
• Electromagnetically Induced Transparency and Slow Light with Optomechanics
• Coherent optical wavelength conversion via cavity-optomechanics
• Interaction between light and highly confined hypersound in a silicon photonic nanowire
• Brillouin Lasing with a CaF_2 Whispering Gallery Mode Resonator
• Phonon counting and intensity interferometry of a nanomechanical resonator
• Continuous mode cooling and phonon routers for phononic quantum networks
• Control of coherent information via on chip photonic-phononic emitter-receivers
• Tunable narrowband microwave photonic filter created by stimulated Brillouin scattering from a Silicon nanowire
• Unifying Brillouin scattering and cavity optomechanics
• Impact of nonlinear loss on Stimulated Brillouin Scattering
• Power limits and a figure of merit for stimulated Brillouin scattering in the presence of third and fifth order loss

Cited by in corpus (31)

• Large Brillouin Amplification in Silicon
• A silicon Brillouin laser
• Controlling phonons and photons at the wavelength-scale: silicon photonics meets silicon phononics
• On-chip Inter-modal Brillouin Scattering
• Unifying Brillouin scattering and cavity optomechanics
• Resonantly enhanced nonreciprocal silicon Brillouin amplifier
• Distributed opto-mechanical analysis of liquids outside standard fibers coated with polyimide
• Integrated RF-photonic Filters via Photonic-Phononic Emit-Receive Operations
• Cascaded forward Brillouin scattering to all Stokes orders
• Perspectives on high-frequency nanomechanics, nanoacoustics, and nanophononics
• NumBAT: The integrated, open source Numerical Brillouin Analysis Tool
• Hybrid confinement of optical and mechanical modes in a bullseye optomechanical resonator
• Optomechanical Multi-Mode Hamiltonian for Nanophotonic Waveguides
• Electrical driving of X-band mechanical waves in a silicon photonic circuit
• Nonlinear Quantum Optics in Optomechanical Nanoscale Waveguides
• Optomechanical antennas for on-chip beam-steering
• Suspended mid-infrared waveguides for Stimulated Brillouin Scattering
• ARRAW: Anti-resonant reflecting acoustic waveguides
• Designing of strongly confined short-wave Brillouin phonons in silicon waveguide periodic lattices
• Genetic optimization of Brillouin scattering gain in subwavelength-structured silicon membrane waveguides
• Vertical engineering for large stimulated Brillouin scattering in unreleased silicon-based waveguides
• Photon and Phonon Spectral-Functions for Continuum Quantum Optomechanics
• Stimulated plasmon polariton scattering
• Suspended Z-cut lithium niobate waveguides for stimulated Brillouin scattering
• Stimulated Brillouin scattering enhancement in silicon inverse opal waveguides
• Entangled Photons and Phonons via Inter-Modal Brillouin Scattering
• Slow Light through Brillouin Scattering in Continuum Quantum Optomechanics
• Multiplexing Guided Optical and Acoustic Waves for Efficient Acousto-Optic Devices
• Optimization of radiation pressure in dielectric nanowaveguides
• Coherently refreshed acoustic phonons for extended light storage
• Memory Device for Photons by exploiting Brillouin Interactions in Nanowires