Graphene-based transparent flexible heat conductor for thermally tuning nanophotonic integrated devices

Yu, Longhai; Dai, Daoxin; He, Sailing

doi:10.1063/1.4905002

Cited by 69 publications

(54 citation statements)

References 32 publications

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“…Thermally induced inhomogeneous refractiveindex distribution of the cladding polymer controllably attenuates the graphene based long-range surface plasmon waveguide for light modulation. b, Schematic of a thermo-optic modulator based on graphene heat conductor 116 . c, Schematic of a graphene based Faraday-rotator and d, its Faradayrotation response at different magnetic fields 119 .…”

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confidence: 99%

“…Graphene based transparent flexible heat conductors also have been used to deliver localized heat for light modulation in a silicon based Mach-Zehnder interferometer (Fig. 5b) and a micro-disk resonator 116 . Another recent study used an opticallycontrolled graphene heater to change the fibre's refractive index in a fibre based Mach-Zehnder interferometer for all-fibre phase shifter and switching 117 .…”

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confidence: 99%

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Optical modulators with 2D layered materials

2016

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Light modulation is an essential operation in photonics and optoelectronics. With existing and emerging technologies increasingly demanding compact, efficient, fast and broadband optical modulators, high-performance light modulation solutions are becoming indispensable. The recent realization that two-dimensional layered materials could modulate light with superior performance has prompted intense research and significant advances, paving the way for realistic applications. In this review, we cover the state-of-the-art of optical modulators based on two-dimensional layered materials including graphene, transition metal dichalcogenides and black phosphorus. We discuss recent advances employing hybrid structures, such as two-dimensional heterostructures, plasmonic structures, and silicon/fibre integrated structures. We also take a look at future perspectives and discuss the potential of yet relatively unexplored mechanisms such as magneto-optic and acousto-optic modulation.

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confidence: 99%

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confidence: 99%

Optical modulators with 2D layered materials

2016

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“…Yu et al demonstrated thermal tuning in both a Mach-Zehnder interferometer and a micro-disk resonator using graphene to conduct heat from a non-local metal heater ( Figure 4E) [61]. Graphene, itself, can also be used in place of a traditional metal heater as demonstrated by Gan et al [71].…”

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confidence: 99%

Integration of 2D materials on a silicon photonics platform for optoelectronics applications

Youngblood

2016

Nanophotonics

103

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Owing to enormous growth in both data storage and the demand for high-performance computing, there has been a major effort to integrate telecom networks onchip. Silicon photonics is an ideal candidate, thanks to the maturity and economics of current CMOS processes in addition to the desirable optical properties of silicon in the near IR. The basics of optical communication require the ability to generate, modulate, and detect light, which is not currently possible with silicon alone. Growing germanium or III/V materials on silicon is technically challenging due to the mismatch between lattice constants and thermal properties. One proposed solution is to use two-dimensional materials, which have covalent bonds in-plane, but are held together by van der Waals forces out of plane. These materials have many unique electrical and optical properties and can be transferred to an arbitrary substrate without lattice matching requirements. This article reviews recent progress toward the integration of 2D materials on a silicon photonics platform for optoelectronic applications.

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“…[21], graphene-based transparent nano-heater on SOI nanowires was proposed and demonstrated for the first time. In this design, the graphene nano-heater is placed to contact directly with the silicon core (see Fig.…”

Section: Soi Nanowire With a Graphene Nano-heatermentioning

confidence: 99%

“…In Ref. [20], we demonstrated a thermally tunable silicon photonic devices with graphene thermal conductor. We also proposed a thermally tuning silicon micro-disk resonator with graphene transparent nano-heaters for the first time [21].…”

Section: Introductionmentioning

confidence: 99%

Utilization of thermal effects for silicon photonics

Dai

Chen

et al. 2015

SPIE Proceedings

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Thermal effect plays a key role and has been utilized for various photonic devices. For silicon photonics, the thermal effect is usually important because of the large thermo-optical coefficient of silicon material. This paper gives a review for the utilization of thermal effects for silicon photonics. First, the thermal effect is very beneficial to realize energy-efficient silicon photonic devices with tunability/switchability (including switches, variable optical attenuators, etc). Traditionally metal micro-heater sitting on a buried silicon-on-insulator (SOI) nanowire is used to introduce a phase shift for thermal tunability by injecting a electrical current. An effective way to improve the energy-efficiency of thermal tuning is reducing the volume of the optical waveguide as well as the micro-heater. Our recent work on silicon nanophotonic waveguides with novel nano-heaters based on metal wires as well as graphene ribbons will be summarized. Second, the thermal resistance effect of the metal strip on a hybrid plasmonic waveguide structure can be utilized to realize an ultra-small on-chip photodetector available for an ultra-broad band of wavelength, which will also be discussed.

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Graphene-based transparent flexible heat conductor for thermally tuning nanophotonic integrated devices

Cited by 69 publications

References 32 publications

Optical modulators with 2D layered materials

Optical modulators with 2D layered materials

Integration of 2D materials on a silicon photonics platform for optoelectronics applications

Utilization of thermal effects for silicon photonics

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