Huang Jijie, Zhang Di, Qi Zhimin, Zhang Bruce, Wang Haiyan
School of Materials, Sun Yat-sen University Guangzhou Guangdong 510275 China
School of Materials Engineering, Purdue University West Lafayette IN 47907 USA
Nanoscale Adv. 2020 Dec 28;3(4):1121-1126. doi: 10.1039/d0na00975j. eCollection 2021 Feb 23.
Ag nanostructures exhibit extraordinary optical properties, which are important for photonic device integration. Herein, we deposited Ag-LiNbO (LNO) nanocomposite thin films with Ag nanoparticles (NPs) embedded into the LNO matrix by the co-deposition of Ag and LNO using a pulsed laser deposition (PLD) method. The density and size of Ag NPs were tailored by varying the Ag composition. Low-density and high-density Ag-LNO nanocomposite thin films were deposited and their optical properties, such as transmittance spectra, ellipsometry measurement, as well as angle-dependent and polarization-resolved reflectivity spectra, were explored. The Ag-LNO films show surface plasmon resonance (SPR) in the visible range, tunable optical constants and optical anisotropy, which are critical for photonic device applications.
银纳米结构具有非凡的光学特性，这对于光子器件集成非常重要。在此，我们通过脉冲激光沉积（PLD）方法共沉积银和铌酸锂（LNO），制备了银纳米颗粒（NPs）嵌入LNO基质的Ag-LiNbO（LNO）纳米复合薄膜。通过改变银的组成来调整银纳米颗粒的密度和尺寸。沉积了低密度和高密度的Ag-LNO纳米复合薄膜，并对其光学特性进行了研究，如透过率光谱、椭偏测量以及角度相关和偏振分辨反射率光谱。Ag-LNO薄膜在可见光范围内表现出表面等离子体共振（SPR）、可调光学常数和光学各向异性，这对于光子器件应用至关重要。
