59 citations · 213 across the 19 of their papers we have counts for
19 papers
2D material-based mode confinement engineering in electro-optic modulators
Zhizhen Ma, Behrouz Movahhed Nouri, Mohammad Tahersima +3
The ability to modulate light using 2-dimensional (2D) materials is fundamentally challenged by their small optical cross-section leading to miniscule modal confinements in diffrac…
Indium-Tin-Oxide for High-performance Electro-optic Modulation
Zhizhen Ma, Zhuoran Li, Behrouz Movahhed Nouri +4
Advances in opto-electronics are often led by discovery and development of materials featuring unique properties. Recently the material class of transparent conductive oxides (TCO)…
An ITO Graphene hybrid integrated absorption modulator on Si-photonics for neuromorphic nonlinear activation
Rubab Amin, Jonathan K. George, Hao Wang +5
The high demand for machine intelligence of doubling every three months is driving novel hardware solutions beyond charging of electrical wires given a resurrection to application…
A Lateral MOS-Capacitor Enabled ITO Mach-Zehnder Modulator for Beam Steering
Rubab Amin, Rishi Maiti, Jonathan K. George +5
Here, we experimentally demonstrate an Indium Tin Oxide (ITO) Mach-Zehnder interferometer heterogeneously integrated in silicon photonics. The phase shifter section is realized in…
Coupling-enhanced Dual ITO Layer Electro-absorption Modulator in Silicon Photonics
Mohammad H. Tahersima, Zhizhen Ma, Yaliang Gui +7
Electro-optic signal modulation provides a key functionality in modern technology and information networks. Photonic integration has enabled not only miniaturizing photonic compone…
Coupling-controlled Dual ITO Layer Electro-Optic Modulator in Silicon Photonics
Mohammad H. Tahersima, Zhizhen Ma, Yaliang Gui +5
Electro-optic signal modulation provides a key functionality in modern technology and information networks. Photonic integration has enabled not only miniaturizing photonic compone…
Compact Graphene Plasmonic Slot Photodetector on Silicon-on-insulator with High Responsivity
Zhizhen Ma, Kazuya Kikunage, Hao Wang +7
Graphene has extraordinary electro-optic properties and is therefore a promising candidate for monolithic photonic devices such as photodetectors. However, the integration of this…
Towards integrated metatronics: a holistic approach on precise optical and electrical properties of Indium Tin Oxide
Yaliang Gui, Mario Miscuglio, Zhizhen Ma +5
The class of transparent conductive oxides includes the material indium tin oxide (ITO) and has become a widely used material of modern every-day life such as in touch screens of s…
A semi-empirical integrated microring cavity approach for 2D material optical index identification at 1.55 μm
Rishi Maiti, Rohit A. Hemnani, Rubab Amin +7
Atomically thin two-dimensional (2D) materials provide a wide range of basic building blocks with unique properties, making them ideal for heterogeneous integration with a mature c…
Loss and Coupling Tuning via Heterogeneous Integration of MoS2 Layers in Silicon Photonics
Rishi Maiti, Chandraman Patil, Rohit Hemnani +8
Layered two-dimensional (2D) materials provide a wide range of unique properties as compared to their bulk counterpart, making them ideal for heterogeneous integration for on-chip…
0.52 V-mm ITO-based Mach-Zehnder Modulator in Silicon Photonics
Rubab Amin, Rishi Maiti, Caitlin Carfano +6
Electro-optic modulators transform electronic signals into the optical domain and are critical components in modern telecommunication networks, RF photonics, and emerging applicati…
Microring Resonators Coupling Tunability by Heterogeneous 2D Material Integration
Rishi Maiti, Rohit Hemnani, Rubab Amin +7
Atomically thin 2D materials provide a wide range of basic building blocks with unique properties, making them ideal for heterogeneous integration with a mature chip platform. An u…
Attojoule-Efficient Graphene Optical Modulators
Rubab Amin, Zhizhen Ma, Rishi Maiti +4
Electro-optic modulation is a technology-relevant function for signal keying, beam steering, or neuromorphic computing through providing the nonlinear activation function of a perc…
Low-loss Tunable 1-D ITO-slot Photonic Crystal Nanobeam Cavity
Rubab Amin, Mohammad H. Tahersima, Zhizhen Ma +4
Tunable optical material properties enable novel applications in both versatile metamaterials and photonic components including optical sources and modulators. Transparent conducti…
Roadmap on Atto-Joule per Bit Modulators
Volker J. Sorger, Rubab Amin, Jacob B. Khurgin +3
Electrooptic modulation performs the conversion between the electrical and optical domain with applications in data communication for optical interconnects, but also for novel opti…
Temperature Dependence of a Sub-wavelength Compact Graphene Plasmon-Slot Modulator
Zhizhen Ma, Rubab Amin, Sikandar Khan +2
We investigate a plasmonic electro-optic modulator with an extinction ratio exceeding 1 dB/um by engineering the optical mode to be in-plane with the graphene layer, and show how l…
2D Materials in Electro-optic Modulation: energy efficiency, electrostatics, mode overlap, material transfer and integration
Zhizhen Ma, Rohit Hemnani, Ludwig Bartels +2
Here we discuss the physics of electro-optic modulators deploying 2D materials. We include a scaling laws analysis showing how energy-efficiency and speed change for three underlyi…
Testbeds for Transition Metal Dichalcogenide Photonics: Efficacy of Light Emission Enhancement in Monomer vs. Dimer Nanoscale Antennae
Mohammad H. Tahersima, M. Danang Birowosuto, Zhizhen Ma +18
Monolayer transition metal dichalcogenides are uniquely-qualified materials for photonics because they combine well defined tunable direct band gaps and selfpassivated surfaces wit…
Active Material, Optical Mode and Cavity Impact on electro-optic Modulation Performance
Rubab Amin, Can Suer, Zhizhen Ma +3
In this paper, three different materials Si, ITO and graphene; and three different types of mode structures bulk, slot and hybrid; based on their electrooptical and electro absorpt…