Multiwavelength Sŏlc filters based on χ ( 2 ) nonlinear quasiperiodic photonic crystals with Fibonacci sequences

• Published in: Applied physics letters Vol. 91; no. 25; pp. 251110 - 251110-3
• Main Authors: Kee, Chul-Sik, Lee, Jongmin, Lee, Yeung Lak
• Format: Journal Article
• Language: English
• Published: American Institute of Physics 17-12-2007
• ISSN: 0003-6951; 1077-3118
• DOI: 10.1063/1.2827183

We demonstrate that a
χ
(
2
)
nonlinear quasiperiodic photonic crystal can act as a multiwavelength Sŏlc filter. The
χ
(
2
)
nonlinear quasiperiodic photonic crystal consists of two building blocks A and B, in which each containing a pair of antiparallel poled domains, arranged as a Fibonacci sequence. The filtering wavelengths are analyzed with the Fibonacci sequence parameters such as the quasiperiodic indices and the average lattice parameter. The filtering efficiency can be tuned by the lengths of poled domains.