zhpsЖурнал прикладной спектроскопииZhurnal Prikladnoii Spektroskopii0514-7506B. I. Stepanov Institute of Physics of the National Academy of Scienceszhps-956Research ArticleСтатьиДвухполосный поглотитель среднего инфракрасного диапазона на основе вложенной структуры из метаматериалаMid-infrared dual-band absorber based on nested metamaterial structureLiZ.LiZ.

Чанчунь, 130022

Changchun, 130022

LiJ.LiJ.

Чанчунь, 130022

Changchun, 130022

lijh@cust.edu.cnZhangY.ZhangY.

Чанчунь, 130022

Changchun, 130022

ZhaiY.ZhaiY.

Чанчунь, 130022

Changchun, 130022

ChuX.ChuX.

Чанчунь, 130022

Changchun, 130022

ZhangY.ZhangY.

Чанчунь, 130022

Changchun, 130022

Международный исследовательский центр нанофотоники и биофотоники провинции Цзилинь, Научная школа Чанчуньского университета науки и техникиInternational Joint Research Center for Nanophotonics and Biophotonics, Nanophotonics and Biophotonics Key Laboratory of Jilin Province, School of Science at Changchun University of Science and Technology202130112021886981981Copyright © Li Z., Li J., Zhang Y., Zhai Y., Chu X., Zhang Y., 20212021Li Z., Li J., Zhang Y., Zhai Y., Chu X., Zhang Y.Li Z., Li J., Zhang Y., Zhai Y., Chu X., Zhang Y.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://zhps.ejournal.by/jour/article/view/956

Предложен двухзонный поглотитель из метаматериала на основе вложенных наноструктур. Моделирование с использованием метода конечных разностей во временной области выявило два пика резонансного поглощения с узкой полушириной в средней ИК-области с центральными длинами волн 3.87 и 4.57 мкм. Структура показала чрезвычайно высокую чувствительность в отсутствие поляризационной чувствительности. Трехполосное поглощение наблюдали, контролируя толщину верхнего слоя рисунка. Обсуждается влияние различных металлических материалов и геометрических структур на поглощение. Вложенная структура, поглощающая ИК-излучение, может найти применение в датчиках и детекторах. Множественные пики поглощения при изменении толщины обеспечивают теоретическую основу для исследований многополосного поглощения. 

A dual-band metamaterial absorber based on nested nanostructures is proposed. Finite-difference timedomain simulations revealed two resonance absorption peaks with narrow half-widths in the mid-infrared, with center wavelengths at 3.87 and 4.57 µm. The structure exhibited extremely high sensitivity with no polarization sensitivity. Triple-band absorption was observed by controlling the thickness of the top pattern layer. The effects of various metallic materials and geometric structures on the absorption are discussed. The nested infrared-absorbing structure has potential applications in sensors and detectors. Furthermore, multiple absorption peaks via thickness changes provide a theoretical basis for future research on multiband absorption. 

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The authors declare that there are no conflicts of interest present.