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2026年10期
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Metasurface metal-organic framework film for highly nonlinear optical amplification
Metasurface metal-organic framework film for highly nonlinear optical amplification
摘要
The integration of metasurface with resonant structural features on metal-organic frameworks(MOF)materials provides a promising strategy for the breakthroughs in achieving nonlinear optical(NLO)amplification but has not yet been reported.Herein,metasurface MOF(Cu-PcCu)films composed of phthalocyanine ligand were successfully fabricated by combining metasurface nanoarrays template and liquid phase epitaxial layer-by-layer strategies.Compared to flat MOF films,the metasurface MOF film exhibits greatly enhanced broadband superabsorption and amplified third-order NLO effects across the visible to near-infrared spectral regions.Notably,the third-order nonlinear absorption coefficients(β)of the metasurface MOF film were approximately 10 times higher than those of flat films at the wave-lengths of 532 nm.Finite difference time domain(FDTD)simulation proves that the enhanced optical properties of metasurface MOF film are mainly due to the resonance effects of electric dipoles.The pre-sented work proposes a novel strategy for achieving third-order NLO amplification by integrating meta-surface nanoarrays and MOF film,offering a new pathway for developing high-performance NLO materials for practical applications.
年，卷(期)：
2026, 71(10)
机标分类号：
TP393.09
TN914.332
F232
在线出版日期：
2026年7月23日
