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Graphene nano-ribbo...
Graphene nano-ribbon waveguides of recordsmall mode area and ultra-high effective refractive indices for future VLSI
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- He, Sailing (author)
- KTH,Elektroteknisk teori och konstruktion
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Zhang, Xizhou (author)
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He, Y. (author)
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(creator_code:org_t)
- 2013
- 2013
- English.
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In: Optics Express. - 1094-4087. ; 21:25, s. 30664-30673
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- Electronics circuits keep shrinking in dimensions, as requested by Moore's law. In contrast, photonic waveguides and circuit elements still have lateral dimensions on the order of the wavelength. A key to make photonics have a microelectronics-like development is a drastic reduction of size. To achieve this, we need a low-loss nanoscale waveguide with a drastically reduced mode area and an ultra-high effective refractive index. For this purpose, we propose here several low-loss waveguide structures based on graphene nano-ribbons. An extremely small mode area (∼10-7λ0 2, one order smaller than the smallest mode area of any waveguide that has ever been reported in the literature; here λ0 is the operating wavelength in vacuum) and an extremely large effective refractive index (several hundreds) are achieved. As a device example, a nano-ring cavity of ultrasmall size (with a diameter of ∼10-2λ0) is designed. Our study paves the way for future VLSI (very-large-scale integration) optoelectronics.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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