Interaction of light and microwave sound

Quate, C. F.; Wilkinson, C. D. W.; Winslow, D.K.

doi:10.1109/proc.1965.4270

Cited by 189 publications

(11 citation statements)

References 55 publications

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“…The scattering of light by the sound wave, namely Brillouin scattering, is of technological importance because this three-wave mixing process provides transduction between the fastmoving photons and the slow-moving phonons [1][2][3][4][5][6][7]. The phonons that induce Brillouin scattering can be thermally or electrically excited, or stimulated by laser through optical forces.…”

Section: Introductionmentioning

confidence: 99%

Electromechanical Brillouin scattering in integrated optomechanical waveguides

Liu

2019

Optica

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In the well-known stimulated Brillouin scattering (SBS) process, spontaneous acoustic phonons in materials are stimulated by laser light and scatter the latter into a Stokes sideband. SBS becomes more pronounced in optical fibers and has been harnessed to amplify optical signals and even achieve lasing. Exploitation of SBS has recently surged on integrated photonics platforms as simultaneous confinement of photons and phonons in waveguides leads to drastically enhanced interaction. Instead of being optically stimulated, coherent phonons can also be electromechanically excited with very high efficiency as has been exploited in radiofrequency acoustic filters. Here, we demonstrate electromechanically excited Brillouin scattering in integrated optomechanical waveguides made of piezoelectric material aluminum nitride (AlN). Acoustic phonons of 16 GHz in frequency are excited with nanofabricated electromechanical transducers to scatter counter-propagating photons in the waveguide into a single anti-Stokes sideband. We show that phase-matching conditions of Brillouin scattering can be tuned by varying both the optical wavelength and the acoustic frequency to realize tunable single-sideband modulation. Combining Brillouin scattering photonics with nanoelectromechanical systems, our approach provides an efficient interface between microwave and optical photons that will be important for microwave photonics and potentially quantum transduction.

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Section: Introductionmentioning

confidence: 99%

Electromechanical Brillouin scattering in integrated optomechanical waveguides

Liu

2019

Optica

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“…About a century ago, French physicist, Lèon Brillouin predicted diffraction of electromagnetic wave by elastic wave [1]. Since then this phenomenon and generally interaction of electromagnetic and acoustic waves has attracted much attention and found many applications.…”

Section: Introductionmentioning

confidence: 99%

Optical wave evolution due to interaction with elastic wave in a phoxonic crystal slab waveguide

Aram

Khorasani

2017

Appl. Phys. B

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Phoxonic crystal as a means of guiding and confining electromagnetic and elastic waves has already attracted attentions. Lack of exact knowledge on how these two types of waves interact inside this crystal and how electromagnetic wave evolves through this interaction has increased this field complexity. Here we explain how an elastic wave affects an electromagnetic wave through photo-elasticity and interface displacement mechanisms in a phoxonic crystal slab waveguide. We obtain a master equation which can describe electromagnetic wave evolution. In this equation we define a coupling parameter and calculate its value for different modes of electromagnetic and elastic waves and show it vanishes for some types of modes . Finally we solve the master equation for a typical phoxonic crystal slab waveguide and illustrate the electromagnetic wave evolution.

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“…Cohen and Gordon16) are using David-type formula as the basis for the beam-probing of ultrasound by optical means, and Quate et al 17) have used this type formula in interpreting their experiments on the diffraction of light by ultrasound of 800MHz in strontium titanate and 3140MHz in rutile (cf. also Nomoto18) for earlier experiments on angular dependence).…”

Section: Introductionmentioning

confidence: 99%

Fine structure in the angular dependence of the Bragg diffraction of light by ultrasound.

Nomoto

1982

J. Acoust. Soc. Jpn. (E), J Acoust Soc Jpn E

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Interaction of light and microwave sound

Cited by 189 publications

References 55 publications

Electromechanical Brillouin scattering in integrated optomechanical waveguides

Electromechanical Brillouin scattering in integrated optomechanical waveguides

Optical wave evolution due to interaction with elastic wave in a phoxonic crystal slab waveguide

Fine structure in the angular dependence of the Bragg diffraction of light by ultrasound.

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