کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7924649 | 1512496 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ultrafast suspended self-biasing graphene modulator with ultrahigh figure of merit
ترجمه فارسی عنوان
گرافن مغناطیسی خود تعویض فوق العاده با شکل فوق العاده شایستگی
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
A theoretical investigation of a suspended self-biasing graphene waveguide for electro-optical modulators is presented. The light-matter interaction can be enhanced by suspending the waveguide. For electro-absorptive modulation, the normalized modulation depth can be 0.54 dB/μm with a 3-dB footprint of only 1.5 μm2. The insertion loss is extremely low â¼ 0.002 dB, with the figure of merit of â¼ 2700. For the electro-refractive modulation, a 100% modulation can be achieved with much smaller Ï-phase shift length of only 18.0 μm. The modulators also show great potential for high-speed (â¼ 559.2 GHz) modulation. The compromise between modulation speed and modulation efficiency is reduced significantly and the design is near-optimal to its fundamental limits. Moreover, a verification simulation by COMSOL is also given. This suspended graphene modulator can pave the way to practical high-speed, compact-footprint, and high-efficiency devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 427, 15 November 2018, Pages 439-446
Journal: Optics Communications - Volume 427, 15 November 2018, Pages 439-446
نویسندگان
Jiamin (åä½³æ), Yangjié (åæ³±æ°),