کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
848430 909243 2015 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spectral characteristic of single layer graphene via terahertz time domain spectroscopy
ترجمه فارسی عنوان
خصوصیات طیفی گرافن تک لایه با استفاده از طیف سنجی دامنه زمان تراهرتز
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی

Distinctive optical properties of graphene with the unique electronic structure in terahertz time domain spectrum could be widely applied in phononics and photonics. We show that time domain signal main-peak of single-layer graphene has hardly any delay relative to the reference signal formed by dipole approximation. Frequency spectrum appeared some absorption peaks and band-width decreased to 2.8 THz with oscillatory structure due to the mismatch strain and the interfacial interaction between graphene and substrate. We described dispersion relation and light absorption of graphene in terahertz range, light absorption coefficient of single layer graphene less than 3% at low photon energies.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 126, Issue 14, July 2015, Pages 1362–1365
نویسندگان
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