论文标题

光谱工程通过圆形纳米对象米拉斯的复杂模式:ii。通过圆形偏振光实现的集成光刻来调谐凹形图案

Spectral engineering via complex patterns of circular nano-object miniarrays: II. concave patterns tunable by integrated lithography realized by circularly polarized light

论文作者

Toth, Emese, Sipos, Aron, Fekete, Oliver A., Csete, Maria

论文摘要

圆形极化梁在胶体球单层的干涉照明中的应用可以直接制造由金属膜中的圆形纳米孔米拉斯组成的矩形图案。在方位定向中研究了由中央纳米和略微旋转的卫星纳米剂制成的复杂矩形图案的光谱和近场作用,从而促进了局部和传播等离子的耦合。为了分别检查局部模式,研究了由均匀的纳米和纳米剂组成的六角形模式的光谱响应和近场现象,这些模式可以由垂直和倾斜的单个同质圆极化束制成,这些镜头可以通过均匀的纳米量和纳米剂进行。为了揭示局部和传播模式的相互作用,分析了由单线纳米,单线水平纳米含量和四个略微旋转的纳米响应的人造矩形图案。已经证明,在C取向((($ 16^{\ Circ} $)$ 0^{\ Circ} $ Azimuthal角度)($ 16^{\ circ} $)上($ 16^{\ circ} $)上的(大约)水平纳米重点上的相互作用的C2和C1相互作用的局部共振)和对(In Zimuthal)的局部局部共振(nanoctientional)的(nanocress)nanoccctients nanocccctients nanocccctients nanoccccctients nanocccccccomence。 U方向((($ 106^{\ circ} $)$ 90^{\ circ} $ azimuthal角度)导致类似的拆分光谱。可以通过改变适度相互作用的纳米骨和模式时期的几何参数来精确调节复杂的Miniarray模式的光谱响应。适当的构型证明了偶极发射极荧光的增强,这些配置具有潜在的生物对象检测中的应用。

Application of circularly polarized beams in interferometric illumination of colloid sphere monolayers enables the direct fabrication of rectangular patterns consisting of circular nanohole miniarrays in metal films. The spectral and near-field effects of complex rectangular patterns made of a central nanoring and slightly rotated satellite nanocrescents were studied in azimuthal orientations promoting the localized and propagating plasmon's coupling. To inspect the localized modes separately, spectral responses and near-field phenomena of hexagonal patterns composed of uniform nanorings and nanocrescents, that can be fabricated by a perpendicularly and obliquely incident single homogeneous circularly polarized beam, were investigated. To uncover the interaction of localized and propagating modes, artificial rectangular patterns composed of a singlet nanoring, singlet horizontal nanocrescent and quadrumer of four slightly rotated nanocrescents were analyzed. It was demonstrated that the interacting C2 and C1 localized resonances on the (approximately) horizontal nanocrescents in C orientation (($16^{\circ}$) $0^{\circ}$ azimuthal angle) and the azimuthal orientation (in)dependent localized resonance on the (nanorings) nanocrescents coupled with propagating surface plasmon polaritons (close to) in U orientation (($106^{\circ}$)$90^{\circ}$ azimuthal angle) result in similar split spectra. The spectral response of the complex miniarray pattern can be precisely tuned by varying the geometrical parameters of the moderately interacting nanoholes and the pattern period. Enhancement of dipolar emitter's fluorescence is demonstrated in appropriate configurations that have a potential application in bio-object detection.

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