Abstract
The propagation length enhancement of surface plasmon polariton (SPP) waves could lead to practical applications. This Letter proposes the numerically verified phase-sensitive nonlinear -based optical parametric amplification (OPA) for ultralong propagation of a SPP wave within an ultrawide bandwidth. The strong nonlinear interaction between the SPP mode and the hybrid guided mode, which limits the length enhancement, is mitigated in a silver-coated linearly chirped periodically poled lithium niobate planar waveguide via slowly phase-matched OPA. Obtained results indicate an ultralong propagation length for a SPP mode of about 4 cm when a 135 MW/cm pump intensity is launched. The acceptance bandwidth of the amplified SPP shows its dependency on the pump intensity; for a pump intensity range between 70 and 135 MW/cm, the acceptance bandwidth is still ultrawide, varying from 28 to 18 nm, respectively.
© 2017 Optical Society of America
Full Article | PDF ArticleMore Like This
F. F. Lu, T. Li, J. Xu, Z. D. Xie, L. Li, S. N. Zhu, and Y. Y. Zhu
Opt. Express 19(4) 2858-2865 (2011)
Nikolai Khokhlov, Grigoriy Knyazev, Boris Glavin, Yakov Shtykov, Oleg Romanov, and Vladimir Belotelov
Opt. Lett. 42(18) 3558-3561 (2017)
Lauren Zundel, Rosario Martinez-Herrero, and Alejandro Manjavacas
Opt. Lett. 42(20) 4143-4146 (2017)