Integrated phase-change photonic devices have recently been shown capable of a quite remarkable range of functionality, including multilevel nonvolatile memory , non-von Neumann arithmetic computing, and, neuromorphic devices and systems. As the key part, the phase-change material (PCM) serves as an...
Neuromorphic photonics devices based on phase change materials (PCMs) and silicon photonics technology have emerged as promising solutions for addressing the limitations of traditional spiking neural networks in terms of scalability, response delay, and energy consumption. In this review, we provide...
Phase-change materials (PCMs) provide a unique combination of properties. On transformation from the amorphous to crystalline state, their optical properties change drastically. Short optical or electrical pulses can be utilized to switch between these states, making PCMs attractive for photonic applicatio...
Integrated photonic devices or circuits that can execute both optical computation and optical data storage are considered as the building blocks for photonic computations beyond the von Neumann architecture. Here, we present non-volatile hybrid electro-o
Phase-change materials (PCMs) provide a unique combination of properties. On transformation from the amorphous to crystalline state, their optical properties change drastically. Short optical or electrical pulses can be utilized to switch between these states, making PCMs attractive for photonic applicatio...
Critical issues common to many reconfigurable devices are bulkiness, low speeds, and large voltage requirements or power consumption. However, phase change materials (PCMs) such as Ge2Sb2Te5 (GST) offer an alternative path for high-speed light modulation circumventing each of these issues. In ...
In parallel, phase-change materials (PCMs) have emerged in recent years as an interesting platform to implement strong and controllable changes of the dielectric permittivity of nanophotonic structures. Materials such as vanadium dioxide (VO2)35, antimony trisulfide (Sb2S3), and germanium antimony te...
Photonic devicesSilicon photonicsChalcogenide phase change materials (PCMs) are a class of alloys exhibiting gigantic optical property contrast upon structural transition from an amorphous to a crystalline state. The structural transition is also nonvolatile and does not require constant power supply to ...
PHASE change materialsOptical phase change materials (O-PCMs), a unique group of materials featuring exceptional optical property contrast upon a solid-state phase transition, have found widespread adoption in photonic applications such as switches, routers and reconfigurable meta-optics. Current O-PCMs...
The global demand for data storage and processing has increased exponentially in recent decades. To respond to this demand, research efforts have been devoted to the development of non-volatile memory and neuro-inspired computing technologies. Chalcogenide phase-change materials (PCMs) are leading candi...