Nanophotonics for tailoring radiation from fast electrons

Nanophotonic methods provide intriguing options for manipulating scintillation phenomena. We will outline recent developments in this domain, along with our theoretical framework for modeling these occurrences, supported by our experimental findings. Additionally, Smith-Purcell radiation, characterized by fast electrons interacting with nano-structured materials to produce light, offers a broad spectrum of possibilities for creation of novel light sources. We will discuss our new theoretical framework designed to comprehend and tailor such phenomena, as well as our techniques for boosting Smith-Purcell radiation.

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Advances in electro-optical components for datacom and sensing applications

This presentation provides an overview of recent advances in electro-optical devices and system architectures for data communications, telecommunication transceivers, and 3D sensing applications. On the transmitter side, progress in directly modulated lasers and externally modulated lasers will be reviewed. The directly modulated lasers include gallium arsenide (GaAs) vertical cavity surface emitting lasers (VCSELs) and Indium phosphide (InP) distributed feedback lasers (DFBs).

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Power-efficient silicon nitride soliton microcombs

Microcombs are strong contenders for attaining the frequency stability and performance of standard passively modelocked lasers on a chip scale. Understanding the optical phase noise dynamics in soliton microcombs and enhancing the power efficiency are crucial directions for the development of ultra-low timing jitter pulsed sources on-chip with enhanced repetition rate stability and ultra-low optical linewidth.

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Integrated devices and high-dimensional photonic systems for quantum technologies

Quantum technologies promise a change of paradigm for many fields of application, for example in communication systems, in high-performance computing and simulation of quantum systems, as well as in sensor technology. However, the experimental realization of suitable system still poses considerable challenges. Current efforts in photonic quantum target the implementation of practical and scalable systems, where the realization of controlled quantum network structures is key for many applications.

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Multilevel reconfigurable nanophotonics with low-loss phase-change materials

Phase change materials (PCMs) are currently revolutionizing nanophotonics by providing ways to tune and reconfigure optical functionalities without any moving parts. Building on this phenomenon, the last decade has witnessed many exciting reports of novel devices exploiting PCMs such as for example beam-steering, tunable light emission, reflection and absorption, programmable metasurfaces and reconfigurable neural networks.

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Integration Technologies for High-Speed Neuromorphic Photonics

The impact of the photonic integration platform of choice on the performance of a novel hybrid optoelectronic neuron based on time division multiplexing that we recently proposed is analyzed and discussed. An invited speaker presentation by Giampiero Contestabile, Associate Professor at Sant’Anna School of Advanced Studies.

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Plasmonics for Integrated Optics

Plasmonics offers a novel approach to overcome the speed limitations of photonics. More importantly plasmonics is a high-speed solution providing lowest power operation on the smallest footprint with a path for CMOS compatible fabrication. In this plenary talk, after an introduction we will discuss latest results on novel modulators, detectors or THz sensors. We will then discuss challenges ahead as well as opportunities of this new field.

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MEMS-based integrated photonic elements for ultra-low-power programmability

Programmability and reconfigurability provide exciting opportunities for integrated optics. In particular, the use of microelectromechanical tunable elements in silicon-based integrated photonics offers interesting options for scalable programmable photonics. In this invited talk, we will discuss our recent progress in developing compact, low-power, reconfigurable MEMS-based building blocks, namely tunable directional couplers and phase shifters, for a number of applications in photonic signal processing, computing, and communication.

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Programmable Integrated Photonics with Phase-Change Materials

Phase-change materials (PCMs) have emerged as a promising platform to modulate light in a nonvolatile manner—a reversible switching between their stable amorphous and crystalline states leads to an impressive refractive index contrast (∆n, ∆k ~1−3). The last decade has seen a growing interest in such a combination of properties for a variety of nonvolatile programmable devices, such as metasurfaces, tunable filters, phase/amplitude modulators, color pixels, thermal camouflage, photonic memories/computing, plasmonics, etc.

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