TITLE

Enhancement of visible second-harmonic generation in epitaxial GaN-based two-dimensional photonic crystal structures

AUTHOR(S)
Vecchi, Gabriele; Torres, Jérémi; Coquillat, Dominique; d'Yerville, Marine Le Vassor; Malvezzi, Andrea Marco
PUB. DATE
February 2004
SOURCE
Applied Physics Letters;2/23/2004, Vol. 84 Issue 8, p1245
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Second-harmonic (SH) radiation generated in reflection is measured from the surface of a two-dimensional triangular photonic crystal in a GaN layer. A very large SH enhancement is observed when the incident radiation is resonant with a leaky photonic mode. The potential of second-harmonic generation as a tool for photonic band mapping is also envisaged. The extended transparency window of III-nitride wide band gap semiconductors coupled with large nonlinearities is an appealing feature pointing toward light control and manipulation in photonic structures. © 2004 American Institute of Physics.
ACCESSION #
12292687

 

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