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High contrast optical modulation by surface acoustic waves
Preprint
2003-04-24
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Abstract
Numerical Calculations are employed to study the modulation of light by surface acoustic
waves (SAWs) in photonic band gap (PBG) structures. The on/off contrast ratio in PBG
switch based on optical cavity is determined as a function of the SAW induced dielectric
modulation. We show that these structures exhibit high contrast ratios even for moderate
acousto-optic coupling