Zero–group-velocity modes in chalcogenide holey photonic-crystal fibers
Author(s)Oskooi, Ardavan; Joannopoulos, John D.; Johnson, Steven G.
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We demonstrate that a holey photonic-crystal fiber with chalcogenide-glass index contrast can be designed to have a complete gap at a propagation constant β=0 that also extends into the non-zero β region. This type of bandgap (previously identified only at index contrasts unattainable in glasses) opens up a regime for guiding zero—group-velocity modes not possible in holey fibers with the more common finger-like gaps originating from β→∞. Such modes could be used to enhance nonlinear and other material interactions, such as for hollow-core fibers in gas-sensor applications.
DepartmentMassachusetts Institute of Technology. Center for Materials Science and Engineering; Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies; Massachusetts Institute of Technology. Department of Mathematics; Massachusetts Institute of Technology. Department of Physics
Optical Society of America
Oskooi, Ardavan F., J. D. Joannopoulos, and Steven G. Johnson. “Zero–group-velocity Modes in Chalcogenide Holey Photonic-crystal Fibers.” Optics Express 17.12 (2009): 10082. Web. 26 June 2012. © 2009 Optical Society of America
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