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Title: High-Speed Electro-Optic Modulator Integrated with Graphene-Boron Nitride Heterostructure and Photonic Crystal Nanocavity

Journal Article · · Nano Letters
DOI:https://doi.org/10.1021/nl504860z· OSTI ID:1370895
 [1];  [2];  [3];  [2];  [2];  [3];  [1];  [4];  [4];  [1];  [2]
  1. Columbia Univ., New York, NY (United States). Dept. of Mechanical Engineering
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Electrical Engineering and Computer Science
  3. Columbia Univ., New York, NY (United States). Dept. of Electrical Engineering
  4. Air Force Research Lab. (AFRL), Wright-Patterson AFB, OH (United States). Sensors Directorate

Nanoscale and power-efficient electro-optic (EO) modulators are essential components for optical interconnects that are beginning to replace electrical wiring for intra- and interchip communications. Silicon-based EO modulators show sufficient figures of merits regarding device footprint, speed, power consumption, and modulation depth. However, the weak electro-optic effect of silicon still sets a technical bottleneck for these devices, motivating the development of modulators based on new materials. Graphene, a two-dimensional carbon allotrope, has emerged as an alternative active material for optoelectronic applications owing to its exceptional optical and electronic properties. We demonstrate a high-speed graphene electro-optic modulator based on a graphene-boron nitride (BN) heterostructure integrated with a silicon photonic crystal nanocavity. Strongly enhanced light-matter interaction of graphene in a submicron cavity enables efficient electrical tuning of the cavity reflection. We observe a modulation depth of 3.2 dB and a cutoff frequency of 1.2 GHz.

Research Organization:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Energy Frontier Research Centers (EFRC) (United States). Center for Excitonics (CE)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0001088
OSTI ID:
1370895
Journal Information:
Nano Letters, Vol. 15, Issue 3; ISSN 1530-6984
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 115 works
Citation information provided by
Web of Science

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2D Materials for Optical Modulation: Challenges and Opportunities journal February 2017
MZI‐Based All‐Optical Modulator Using MXene Ti 3 C 2 T x (T = F, O, or OH) Deposited Microfiber journal January 2019
Hybrid 2D‐Material Photonics with Bound States in the Continuum journal September 2019
All-Optical Phosphorene Phase Modulator with Enhanced Stability Under Ambient Conditions journal April 2018
Design and optimization of photonic crystal fiber for liquid sensing applications journal June 2016
An all-optical modulator based on a stereo graphene–microfiber structure journal December 2015
Direct observation of exceptional points in coupled photonic-crystal lasers with asymmetric optical gains journal December 2016
Optical modulators with 2D layered materials journal March 2016
Fast thermal relaxation in cavity-coupled graphene bolometers with a Johnson noise read-out journal June 2018
Structural and electronic properties of epitaxial multilayer h-BN on Ni(111) for spintronics applications journal March 2016
Two dimensional hexagonal boron nitride (2D-hBN): synthesis, properties and applications journal January 2017
Emerging photonic architectures in two-dimensional opto-electronics journal January 2018
Dipole controlled Schottky barrier in the blue-phosphorene-phase of GeSe based van der Waals heterostructures journal January 2019
A bismuthene-based multifunctional all-optical phase and intensity modulator enabled by photothermal effect journal January 2019
Passive mode-locking in erbium-doped fibre laser based on BN-GO saturable absorber journal August 2018
Interaction of surface acoustic waves with electronic excitations in graphene journal August 2018
Efficient Optical Reflection Modulation by Coupling Interband Transition of Graphene to Magnetic Resonance in Metamaterials journal December 2019
Attojoule-efficient graphene optical modulators journal January 2018
Surface-normal electro-optic spatial light modulator using graphene integrated on a high-contrast grating resonator journal January 2016
Ultranarrow-band metagrating absorbers for sensing and modulation journal January 2018
Experimental demonstration of a graphene-based hybrid plasmonic modulator journal January 2019
Van der Waals materials integrated nanophotonic devices [Invited] journal January 2019
Effects of Microsphere Size on the Mechanical Properties of Photonic Crystals journal December 2018
Graphene-Based Spatial Light Modulator Using Metal Hot Spots journal September 2019
Structural and electronic properties of epitaxial multilayer h-BN on Ni(111) for spintronics applications text January 2016
Ultranarrow-band metagrating absorbers for sensing and modulation conference January 2019
Attojoule-Efficient Graphene Optical Modulators text January 2018
Angle-selective perfect absorption with two-dimensional materials journal December 2015
Continuous-wave quantum dot photonic crystal lasers grown on on-axis Si (001) journal February 2020