High-contrast optical modulation by surface acoustic waves

Krishnamurthy, Srinivasan; Santos, P.V.
September 2003
Applied Physics Letters;9/29/2003, Vol. 83 Issue 13, p2548
Academic Journal
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 a PBG switch based on an 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. © 2003 American Institute of Physics.


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