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بررسی خواص نوری بلورهای فوتونی سه گانه حاوی متامواد هذلولوی گرافن پایه با محور نوری مورب | ||
| فصلنامه علمی اپتوالکترونیک | ||
| دوره 8، شماره 1 - شماره پیاپی 22، مهر 1404، صفحه 23-30 اصل مقاله (1 M) | ||
| نوع مقاله: پژوهشی | ||
| شناسه دیجیتال (DOI): 10.30473/jphys.2025.73430.1229 | ||
| نویسندگان | ||
| زهرا عینی* 1؛ کریم میلانچیان2 | ||
| 1استادیار، گروه فیزیک، دانشگاه پیام نور، تهران، ایران. | ||
| 2گروه فیزیک، دانشکده علوم، تهران، ایران | ||
| چکیده | ||
| در این مطالعه رفتار نوری یک ساختار سهلایه فوتونی متشکل از صفحات گرافنی با ویژگیهای هذلولوی و محور نوری مایل در حوزه فرکانسی تراهرتز مورد ارزیابی قرار گرفته است. تحلیل پدیدهها بر پایه مدل تقریب محیط موثر و رویکرد ماتریس انتقال امواج صورت گرفت. بررسیها نشان داد که تغییر در پارامترهایی نظیر اندازه پتانسیل شیمیایی گرافن، ضخامت لایههای دیالکتریک و زاویه انحراف محور نوری میتواند پاسخهای جذب و انتقال انرژی را در هر دو گونه قطبش موج فرودی دستخوش تغییر سازد. نتایج حاکی از آن است که در یکی از قطبشهای عرضی، تغییر زاویه محور نوری نقشی تعیینکننده ندارد، در حالی که افزایش ضخامت صفحات دیالکتریکهای اول و سوم در ساختار مورد مطالعه، باعث محدود شدن پهنای ناحیه عبور برای هر دو نوع قطبش موج فرودی میشود. | ||
| کلیدواژهها | ||
| بلوهای فوتونی سه گانه؛ متامواد هذلولوی گرافن پایه؛ ماتریس انتقال | ||
| عنوان مقاله [English] | ||
| Study of optical properties of ternary photonic crystals containing tilted graphene-based hyperbolic metamaterials | ||
| نویسندگان [English] | ||
| Zahra Eyni1؛ Karim Milanchian2 | ||
| 1Assistant Professor, Department of Physics, Payame Noor University, Tehran, Iran. | ||
| 2Department of Physics, Payame Noor University, Tehran, IRAN | ||
| چکیده [English] | ||
| In this study, the optical behavior of a three-layer photonic structure composed of graphene sheets with hyperbolic properties and an obliquely oriented optical axis was investigated in the terahertz frequency range. The phenomena were analyzed using the effective medium approximation model and the wave transfer approach. The results indicate that variations in parameters such as the graphene chemical potential, dielectric layer thicknesses, and the deviation angle of the optical axis can significantly influence the absorption and energy transmission responses for both types of incident wave polarizations. It was found that, for one of the transverse polarizations, changes in the optical axis orientation have negligible effect, whereas increasing the thickness of the first and third dielectric layers in the periodic structure reduces the bandwidth of the transmission region for both incident wave polarizations. | ||
| کلیدواژهها [English] | ||
| Ternary Photonic Crystals, Graphene-based Hyperbolic Metamaterial, Photonic, Transfer matrix | ||
| مراجع | ||
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