Journal
APPLIED PHYSICS LETTERS
Volume 92, Issue 16, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2909656
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We report on an electro-optic modulator fabricated from a silicon slot waveguide and clad in a nonlinear polymer. In this geometry, the electrodes form parts of the waveguide, and the modulator driving voltage drops across a 120 nm slot. As a result, a half wave voltage of 0.25 V is achieved near 1550 nm. This is one of the lowest values for any modulator obtained to date. As the nonlinear polymers are extremely resistive, our device also has the advantage of drawing almost no current, suggesting this type of modulator could operate at exceedingly low power. (c) 2008 American Institute of Physics.
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