激光与光电子学进展, 2019, 56 (15): 152501, 网络出版: 2019-08-05
基于非对称纳米颗粒阵列的垂直与平行表面晶格共振 
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Formation of Orthogonal and Parallel Surface-Lattice Resonances with Asymmetric Nanoparticle Array
图 & 表
图 1. 单个L-形金纳米棒的光学响应。 (a)L-形金纳米棒结构示意图;(b)纳米棒散射谱(实线)以及x和y方向电偶极散射的贡献(虚线);(c)反成键及(d)成键局域共振模式近场分布特性;(e)散射光谱随纳米棒长度变化的关系;(f)散射光谱随纳米棒宽度变化的关系;(g)散射光谱随纳米棒厚度变化的关系
Fig. 1. Optical responses of single L-shaped gold nanorod. (a) Schematic of L-shaped gold nanorod; (b) scattering spectrum of nanorod (solid line) and contribution of electric dipole scattering in x and y directions (dashed line); near-field distribution characteristics of (c) anti-bonding and (d) bonding localized surface plasmon resonances; (e) variation in scattering spectrum with length of nanorod; (f) variation in scattering spectrum with width of nanorod; (g) variation in scattering spectrum with
图 2. L-形纳米颗粒阵列的光学响应。 (a)垂直入射情况下,当x方向周期为1120 nm和1150 nm时L-形纳米颗粒阵列的消光谱,其中y方向周期固定为1120 nm(插图为L-形金纳米颗粒阵列结构示意图);(b)阵列透射谱随x方向周期变化关系
Fig. 2. Optical responses of L-shaped nanoparticle array. (a) Extinction spectrum of L-shaped nanoparticle array under normal incidence when periods in x direction are 1120 nm and 1150 nm and period in y direction is fixed at 1120 nm (inset represents diagram of L-shaped nanoparticle array); (b) transmission spectrum of L-shaped nanoparticle array versus period in x direction
图 3. 不同波长处的电场强度分布(上)以及在x方向(中)和y方向(下)电场分量分布情况。(a)波长为1515 nm;(b)波长为1498 nm;(c)波长为1542 nm
Fig. 3. Electric field intensity distributions (upper) and field component distributions in x (middle) and y (lower) directions at different wavelengths. (a) Wavelength of 1515 nm; (b) wavelength of 1498 nm; (c) wavelength of 1542 nm
图 4. L-形纳米颗粒阵列的光学响应。(a)垂直入射情况下,x方向周期为670 nm和690 nm时L-形纳米颗粒阵列的消光谱,y方向周期固定为690 nm;(b)阵列透射谱随x方向周期变化关系
Fig. 4. Optical responses of L-shaped nanoparticle array. (a) Extinction spectrum of L-shaped nanoparticle array under normal incidence when periods in x direction are 670 nm and 690 nm and period in y direction is fixed at 690 nm; (b) transmission spectrum of L-shaped nanoparticle array versus period in x direction
图 5. 不同波长处的电场强度分布(上)以及在x方向(中)和y方向(下)电场分量分布情况。(a)波长为934 nm;(b)波长为894 nm;(c)波长为927 nm
Fig. 5. Electric field intensity distributions (upper) and field component distributions in x (middle) and y (lower) directions at different wavelengths. (a) Wavelength of 934 nm; (b) wavelength of 894 nm; (c) wavelength of 927 nm
侯浩杰, 刘钧妍, 肖博文, 朱明琦, 李孟春. 基于非对称纳米颗粒阵列的垂直与平行表面晶格共振[J]. 激光与光电子学进展, 2019, 56(15): 152501. Haojie Hou, Junyan Liu, Bowen Xiao, Mingqi Zhu, Mengchun Li. Formation of Orthogonal and Parallel Surface-Lattice Resonances with Asymmetric Nanoparticle Array[J]. Laser & Optoelectronics Progress, 2019, 56(15): 152501.
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