Enhancement of χ⁽²⁾ cascading processes in one-dimensional photonic bandgap structures
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Author/Creator ORCID
Date
1999
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Citation of Original Publication
D’Aguanno, G.; et al.; Enhancement of χ⁽²⁾ cascading processes in one-dimensional photonic bandgap structures; Optics Letters Vol. 24, Issue 23, pp. 1663-1665 (1999); https://www.osapublishing.org/ol/abstract.cfm?uri=ol-24-23-1663
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This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Public Domain Mark 1.0
This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Subjects
Abstract
We theoretically analyze the nonlinear phase shifts induced by cascaded χ⁽²⁾:χ⁽²⁾ processes in one-dimensional photonic bandgap structures. We find that the enhancement of the density of modes near the band edge, coupled with a suitable choice of relative phase mismatch, leads to a remarkable new effect: The relative phase shift of the fundamental field on transmission can be of the order of 𝜋 over a distance of 7 µm, with input intensities of the order of only