طراحی بهینه و تحلیل تمام‌موج جاذب‌های فراماده‌ای پهن‌بانددر طیف نور مرئی
محورهای موضوعی : مهندسی برق و کامپیوتر
مرتضی نظری
1
,
امیر حبیب‌زاده شریف
2
*
,
محمد اسکندری
3
1 - دانشگاه صنعتی سهند
2 - دانشگاه صنعتی سهند
3 - دانشگاه صنعتی سهند
کلید واژه: جاذب, پهن‌باند, فراماده, نور مرئی, تحلیل تمام‌موج,
چکیده مقاله :
در این مقاله، طراحی بهینه، شبیه‌سازی عددی و تحلیل تمام‌موج دو جاذب فراماده‌ای پهن‌باند در فرکانس‌های فروسرخ، نور مرئی و فرابنفش از طیف نور خورشید ارائه شده‌اند. این جاذب‌های مسطح، متشکل از دو لایه هادی و یک لایه عایق میانی هستند. نتایج حاصل از شبیه‌سازی‌های عددی مبتنی بر روش انتگرال‌گیری متناهی نشان داد‌ه‌اند که عملکرد جاذب‌های طراحی‌شده مستقل از قطبش و زوایای تابش سمتی و ارتفاع موج تابشی است. جاذب‌های پیشنهادی دارای میزان جذب بیش از 92% در محدوده نور مرئی هستند؛ لذا این جاذب‌ها می‌توانند به منظور برداشت انرژی نور خورشید مورد استفاده قرار گیرند.
In this paper, optimum design, numerical simulation and full-wave analysis of two broad-band metamaterial absorbers have been presented in the infrared, visible light, and ultraviolet frequencies of the sunlight spectrum. These planar absorbers consist of two conductive layers and an intermediate insulating layer. The simulations results obtained by the finite integration technique have shown that performance of the designed absorbers is independent of the incident wave polarization and its elevation and azimuth angles. The proposed absorbers have an absorption of more than 92% in the visible light range. Therefore, these absorbers can be used to harvest the energy of sunlight
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