1.9k citations · 3.5k across the 16 of their papers we have counts for
17 papers
Ultra-Thin Aluminum-Doped Silver for Transmissive Thermally Reconfigurable Visible Photonics
Hongyi Sun, Yi-Siou Huang, Junyeob Song +7
Functional materials with high electrical conductivity and optical transmittance are vital for thermally tunable free-space photonic systems. Conventional transparent conductors su…
Nonvolatile Tuning of Bragg Structures Using Transparent Phase-Change Materials
Nicholas A. Nobile, Chuanyu Lian, Hongyi Sun +7
Bragg gratings offer high-performance filtering and routing of light on-chip through a periodic modulation of a waveguide's effective refractive index. Here, we model and experimen…
In-memory photonic dot-product engine with electrically programmable weight banks
Wen Zhou, Bowei Dong, Nikolaos Farmakidis +7
Electronically reprogrammable photonic circuits based on phase-change chalcogenides present an avenue to resolve the von-Neumann bottleneck; however, implementation of such hybrid…
Time-resolved temperature mapping leveraging the strong thermo-optic effect in phase-change devices
Nicholas A. Nobile, John R. Erickson, Carlos Ríos +5
Optical phase-change materials are highly promising for emerging applications such as tunable metasurfaces, reconfigurable photonic circuits, and non-von Neumann computing. However…
AnalogVNN: A fully modular framework for modeling and optimizing photonic neural networks
Vivswan Shah, Nathan Youngblood
AnalogVNN, a simulation framework built on PyTorch which can simulate the effects of optoelectronic noise, limited precision, and signal normalization present in photonic neural ne…
All-optical spiking neurosynaptic networks with self-learning capabilities
J. Feldmann, N. Youngblood, C. D. Wright +2
Software-implementation, via neural networks, of brain-inspired computing approaches underlie many important modern-day computational tasks, from image processing to speech recogni…
Monadic Pavlovian associative learning in a backpropagation-free photonic network
James Y. S. Tan, Zengguang Cheng, Johannes Feldmann +6
Over a century ago, Ivan P. Pavlov, in a classic experiment, demonstrated how dogs can learn to associate a ringing bell with food, thereby causing a ring to result in salivation.…
Engineering photonic environments for two-dimensional materials
Xuezhi Ma, Nathan Youngblood, Xiaoze Liu +5
A fascinating photonic platform with a small device scale, fast operating speed, as well as low energy consumption is two-dimensional (2D) materials, thanks to their in-plane cryst…
Parallel convolution processing using an integrated photonic tensor core
Johannes Feldmann, Nathan Youngblood, Maxim Karpov +13
With the proliferation of ultra-high-speed mobile networks and internet-connected devices, along with the rise of artificial intelligence, the world is generating exponentially inc…
Broadly-tunable smart glazing using an ultra-thin phase-change material
Nathan Youngblood, Clément Talagrand, Benjamin Porter +8
For many applications, a method for controlling the optical properties of a solid-state film over a broad wavelength range is highly desirable and could have significant commercial…
Non-volatile silicon photonic memory with more than 4-bit per cell capability
Xuan Li, Nathan Youngblood, C. David Wright +2
We present the first demonstration of an integrated photonic phase-change memory using GeSbTe-225 on silicon-on-insulator and demonstrate reliable multilevel operation with a singl…
Plasmonic nanogap enhanced phase change devices with dual electrical-optical functionality
Nikolaos Farmakidis, Nathan Youngblood, Xuan Li +6
Modern-day computers use electrical signaling for processing and storing data which is bandwidth limited and power-hungry. These limitations are bypassed in the field of communicat…
In-memory computing on a photonic platform
Carlos Ríos, Nathan Youngblood, Zengguang Cheng +5
Collocated data processing and storage are the norm in biological systems. Indeed, the von Neumann computing architecture, that physically and temporally separates processing and m…
Mid-infrared Electro-Optic Modulation in Few-layer Black Phosphorus
Ruoming Peng, Kaveh Khaliji, Nathan Youngblood +3
Black phosphorus stands out from the family of two-dimensional materials as a semiconductor with a direct, layer-dependent bandgap in energy corresponding to the spectral range fro…
Layer Tunable Third-Harmonic Generation in Multilayer Black Phosphorus
Nathan Youngblood, Ruoming Peng, Andrei Nemilentsau +2
Black phosphorus has been the subject of growing interest due to its unique band structure that is both layer dependent and anisotropic. While many have studied the linear optical…
Waveguide-integrated black phosphorus photodetector with high responsivity and low dark current
Nathan Youngblood, Che Chen, Steven J. Koester +1
Layered two-dimensional materials have shown novel optoelectronic properties and are well suited to be integrated in planar photonic circuits. For example, graphene has been utiliz…
Multifunctional graphene optical modulator and photodetector integrated on silicon waveguides
Nathan Youngblood, Yoska Anugrah, Rui Ma +2
For optical communication, information is converted between optical and electrical signal domains at a high rate. The devices to achieve such a conversion are various types of elec…