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2 November 2016 Good vibrations: Controlling light with sound (Conference Presentation)
Benjamin J. Eggleton, Amol Choudhary
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Proceedings Volume 9956, Ultrafast Nonlinear Imaging and Spectroscopy IV; 995613 (2016) https://doi.org/10.1117/12.2237219
Event: SPIE Optical Engineering + Applications, 2016, San Diego, California, United States
Abstract
One of the surprises of nonlinear optics, is that light may interact strongly with sound. Intense laser light literally “shakes” the glass in optical fibres, exciting acoustic waves (sound) in the fibre. Under the right conditions, it leads to a positive feedback loop between light and sound termed “Stimulated Brillouin Scattering,” or simply SBS. This nonlinear interaction can amplify or filter light waves with extreme precision in frequency which makes it uniquely suited to solve key problems in the fields of defence, biomedicine, wireless communications, spectroscopy and imaging. We have achieved the first demonstration of SBS in compact chip-scale structures, carefully designed so that the optical fields and the acoustic fields are simultaneously confined and guided. This new platform has opened a range of new functionalities that are being applied in communications and defence with breathtaking performance and compactness. My talk will introduce this new field and review our progress and achievements, including silicon based optical phononic processor.
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Benjamin J. Eggleton and Amol Choudhary "Good vibrations: Controlling light with sound (Conference Presentation)", Proc. SPIE 9956, Ultrafast Nonlinear Imaging and Spectroscopy IV, 995613 (2 November 2016); https://doi.org/10.1117/12.2237219
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KEYWORDS
Imaging spectroscopy
Acoustics
Defense and security
Spectroscopy
Glasses
Laser scattering
Light scattering
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