Observation of 990-MHz Optical Oscillation From Light Emitters Excited by High-Order Harmonics of Surface Acoustic Waves

Optomechanical properties have been widely explored on the interactions between phonon, photon, and electrons. The applications range from acoustic filters for mobile handsets to quantum information science./However, up to date, the interaction between harmonic modes of surface acoustic waves (SAWs)...

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Bibliographic Details
Published in:IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 2021-03, Vol.68 (3), p.854-858
Main Authors: Tsai, Meng-Yu, Pan, Szu-Yu, Huang, Jian-Jang
Format: Article
Language:English
Subjects:
Acoustic coupling
Acoustic properties
Acousto-optics
Coupling
Data processing
Emitters
Emitters (electron)
Gallium nitride
GaN
Harmonic analysis
Higher harmonics
interdigital transducers (IDTs)
Light emitting diodes
light emitting diodes (LEDs)
Optical variables control
Photons
Quantum phenomena
Radio frequency
Room temperature
Surface acoustic waves
surface acoustic waves (SAWs)
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Summary:Optomechanical properties have been widely explored on the interactions between phonon, photon, and electrons. The applications range from acoustic filters for mobile handsets to quantum information science./However, up to date, the interaction between harmonic modes of surface acoustic waves (SAWs) and photons has not been studied in detail. Here, we develop radio frequency (RF) - modulated light emitters driven by the coupling between electrical and acoustic signals at room temperature. The light emitter demonstrates a 990-MHz oscillation behavior which cannot be solely achieved by electrical driving due to resistance-capacitance ( RC ) limit. Instead, the result is attributed to the excitation by the harmonics of SAWs in the light emitter. The ~gigahertz light oscillation enables a new architecture for information processing. In this work, we also demonstrate the coupling between acoustooptical and electrooptical interactions by simultaneously applying 990-MHz acoustic signals and 20-MHz modulated electrical inputs.
ISSN:0885-3010
1525-8955
DOI:10.1109/TUFFC.2020.3010269