دورية أكاديمية
Coscinodiscus diatom inspired bi-layered photonic structures with near-perfect absorptance Part II: hexagonal vs. square lattice-based structures.
| العنوان: | Coscinodiscus diatom inspired bi-layered photonic structures with near-perfect absorptance Part II: hexagonal vs. square lattice-based structures. |
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| المؤلفون: | Hassan MM, Zaman S, Hasanuzzaman M, Baten MZ |
| المصدر: | Optics express [Opt Express] 2022 Aug 01; Vol. 30 (16), pp. 29352-29364. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Optica Publishing Group Country of Publication: United States NLM ID: 101137103 Publication Model: Print Cited Medium: Internet ISSN: 1094-4087 (Electronic) Linking ISSN: 10944087 NLM ISO Abbreviation: Opt Express Subsets: PubMed not MEDLINE; MEDLINE |
| أسماء مطبوعة: | Publication: Washington, DC : Optica Publishing Group Original Publication: Washington, DC : Optical Society of America, 1997- |
| مستخلص: | In this follow up of our previous work on bio-inspired photonics [Opt. Express28, 25007 (2020)10.1364/OE.399505], we present a detailed comparison between the absorption characteristics of hexagonal and square lattice oriented bi-layered photonic structures designed based on the morphology of Coscinodiscus diatom. It is well established that single layers of square lattice-based systems offer better light absorption characteristics than their hexagonal counterparts. However this study shows that superior performances are obtained with hexagonal lattices when bi-layered photonic structures mimicking Coscinodiscus diatom are designed. The finite difference time domain and effective medium approximation based numerical analysis of this work show that bi-layered structures containing hexagonal lattices exhibit tunable, near-perfect (∼95%) absorptance at around 426 nm wavelength up to about 60° angle of incidence, whereas for square lattice the absorptance goes below 85% (65%) for TM (TE) polarization. Moreover, depending on whether light is being incident onto smaller or larger pores of the bi-layered system, peak absorptance for hexagonal lattices is obtained to be nearly 4 times higher than the results obtained for the equivalent square lattices. Such characteristics make the hexagonal lattice-based structures more suitable for bi-facial light absorption related applications. |
| تواريخ الأحداث: | Date Created: 20221027 Latest Revision: 20221027 |
| رمز التحديث: | 20221213 |
| DOI: | 10.1364/OE.466296 |
| PMID: | 36299111 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1094-4087 |
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| DOI: | 10.1364/OE.466296 |