Journal
OPTICS EXPRESS
Volume 18, Issue 8, Pages 8705-8712Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.18.008705
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Funding
- NSF
- NSERC (Canada)
- NSF GRFP
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [0846684] Funding Source: National Science Foundation
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We present dynamically reconfigurable photonic crystal nanobeam cavities, operating at similar to 1550 nm, that can be continuously and reversibly tuned over a 9.5 nm wavelength range. The devices are formed by two coupled nanobeam cavities, and the tuning is achieved by varying the lateral gap between the nanobeams. An electrostatic force, obtained by applying bias voltages directly to the nanobeams, is used to control the spacing between the nanobeams, which in turn results in tuning of the cavity resonance. The observed tuning trends were confirmed through simulations that modeled the electrostatic actuation as well as the optical resonances in our reconfigurable geometries. (C) 2010 Optical Society of America
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