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Title: Storing light in active optical waveguides with single-negative materials
Authors: Lu, W. T
Huang, Y. J
Casse, B. D. F
Banyal, R. K
Sridharb, S
Keywords: Active optical waveguides;Single-negative materials
Issue Date: 24-May-2010
Publisher: American Institute of Physics
Citation: Applied Physics Letters, Vol. 96, No. 21, pp. 211112 - 1 - 3
Abstract: We show that a nonresonant planar waveguide consisting of conventional dielectric cladded with single-negative materials supports degenerate propagating modes for which the group velocity and total energy flow can be zero if the media are lossless. Absorptive losses will destroy the zero-group velocity condition for real frequency/complex wave vector modes. We show that by incorporating gain G into the core dielectric, there exists a critical gain value G/subc/ at which we can recover the condition of zero group velocity, so that light pulses can be stopped and stored. This structure is simpler to achieve than double-negative metamaterials, has small footprint, and can be incorporated into ultracompact on-chip optoelectronics.
Description: Restricted Access
ISSN: 0003-6951
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Appears in Collections:IIAP Publications

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