Near-field properties of a shell nanocylinder pair with gain materials

Abstract

We study the near-field response of a shell nanocylinder pair, with its core filled by gain materials, using a twodimensional finite-difference time-domain method. It is shown that the gain materials in the core of the cylinder can compensate for the intrinsic absorption of the metal shell, leading to local-field enhancement in the gap of the active pair. A linear dependence is found between the field enhancement and the gain coefficient at resonance. The detailed physics is studied by calculating the electrical-field distribution of the shell pair filled with different gain materials. The influence of the gap width and the shell thickness on the interaction of two adjacent active shell cylinders is also investigated.

The Potential of Edible Films, Sheets, and Coatings Based on Fruits and Vegetables in the Context of Sustainable Food Packaging Development

“…Chinese scientists commonly refer to these materials as "vegetable paper," describing compositions that incorporate binding agents, plasticizers, and vegetable pastes or purees [65][66][67]. In the production of edible wrapping and packaging paper, ingredients such as celery, Chinese chive, and Dangshan pear have been utilized [68][69][70]. In addition to these, less commonly used expressions such as "dehydrated matrix" [71] or simply plastic [72] have also been introduced to represent similar ideas in this domain.…”

“…Banana puree film [96] [97] [98] flour (convective dried powdered fruit without peel) film [41,[99][100][101] film heat-sealed sachet [102][103][104] Broccoli puree film [90] Cabbage NA vegetable paper [65] Carrot pomace (convective dried powdered solid residue generated by the processing of whole vegetables during juice production) film [105] puree film/film wrap [93] film [89,90,106] coating [107] carrot paper [108] pomace (convective dried powdered solid residue derived from minimally processed carrots) film [109] pomace (convective dried powdered solid residue generated by the processing of whole vegetables during juice production) film/coating [110] film/film packaging/coating [111] Cashew apple alcoholic extract from whole fruit film [83] Celery puree wrapping paper [68] Chinese chive puree packaging paper [70] Courgette pomace (convective dried powdered solid residue generated by the processing of whole vegetables during juice production) film [105] film/film packaging/coating [111] film/coating [110] Cranberry pomace extract film [112] Cucumber pomace (convective dried powdered solid residue generated by the processing of whole vegetables during juice production) film [105] film/film packaging/coating [111] film/coating [110] Durian fruit puree leather [113] Fennel homogenized residue film [114] Grapes pomace extract film [115,116] clarified juice pestil/leather/sheet [59] pestil/leather…”