کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1860552 1037438 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tunable defect mode realized by graphene-based photonic crystal
ترجمه فارسی عنوان
حالت نقص قابل تنظیم که توسط بلور فوتونی بر پایه گرافن انجام شده است
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
چکیده انگلیسی


• A novel PhC embedded with grapheme sheets is presented, tunable defect is realized.
• The mechanism of the tunable defect is explained using the change of equivalent thickness.
• The electromagnetic force of a slab is calculated, which indicates the structure can serve as a tunable force generator.

In this literature, we propose an active terahertz 1D photonic crystal, which consists of silicon layers and air layers. A graphene sheet is embedded at the interface between dielectric and air. Tunable photonic band gap is realized by changing the Fermi level of graphene. Transmission Matrix Method is utilized to explain the influence of the graphene layer. We also demonstrate that a dielectric slab attached with a thin sheet made of single-negative metamaterial acts like a pure dielectric slab with a thinner thickness. A tunable blue shift of the band gap can be realized by simply applying different chemical potentials on the graphene sheet. This feature can be utilized for the design of tunable high-gain antenna array and force generator in terahertz band.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 380, Issue 20, 29 April 2016, Pages 1793–1798
نویسندگان
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