Simultaneous broadband generation of second and third harmonics from chirped nonlinear photonic crystals  

作　　者：Bao-Qin Chen Ming-Liang Ren Rong-Juan Liu Chao Zhang Yan Sheng Bo-Qin Ma Zhi-Yuan Li 

机构地区：[1]Laboratory of Optical Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [2]Laser Physics Center,Research School of Physics and Engineering,Australian National University,Canberra,ACT 0200,Australia [3]College of Sciences,Communication University of China,Beijing 100024,China

出　　处：《Light(Science & Applications)》2014年第1期135-140,共6页光（科学与应用)（英文版）

基　　金：This work was supported by the 973 Program of China(No.2011CB922002 and No.2013CB632704);the Knowledge Innovation Program of the Chinese Academy of Sciences(No.Y1 V2013 L11).

摘　　要：Ultrabroadband laser sources are highly desirable in a wide variety of modern science disciplines ranging from physics,chemistry and materials science to information communications and processing.Here we present the design and fabrication of a chirped periodically poled lithium niobate(CPPLN)nonlinear photonic crystal that supports multiple orders of quasiphase matching with finite bandwidth and allows for the simultaneous broadband generation of second and third harmonics with high conversion efficiency.Moreover,the chirp rate has a significant influence on the conversion efficiency and bandwidth.The CPPLN scheme offers a promising approach for the construction of short-wavelength laser sources and enables the generation of the three primary colors—red,green and blue—from a single crystal,which may have potential applications in large-screen laser displays.

关 键 词：chirped periodically poled lithium niobate quasiphase matching second-harmonic generation third-harmonic generation 

分 类 号：TN2[电子电信—物理电子学]