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Integrated optical devices able to control light matter interactions on the nanoscale have attracted the attention of the scientific community in recent years. However, most of these devices are based on silicon waveguides, limiting their…

Modern machine learning applications require huge artificial networks demanding in computational power and memory. Light-based platforms promise ultra-fast and energy-efficient hardware, which may help in realizing next-generation data…

Emerging Technologies · Computer Science 2022-08-30 Carlo Michele Valensise , Ivana Grecco , Davide Pierangeli , Claudio Conti

This paper proposes to adopt advanced monolithic silicon-photonics integrated-circuits manufacturing capabilities to achieve a system-on-chip photonic-electronic linear-algebra accelerator with the features of optical comb-based broadband…

Systems and Control · Electrical Eng. & Systems 2023-11-22 Tzu-Chien Hsueh , Yeshaiahu Fainman , Bill Lin

Inverse-designed nanophotonic devices offer promising solutions for analog optical computation. High-density photonic integration is critical for scaling such architectures toward more complex computational tasks and large-scale…

Optics · Physics 2025-06-09 Joel Sved , Shijie Song , Liwei Li , George Li , Debin Meng , Xiaoke Yi

Artificial nanostructures with ultrafine and deep-subwavelength feature sizes have emerged as a paradigm-shifting platform to advanced light field management, becoming a key building block for high-performance integrated optoelectronics and…

Optical skyrmion beams, which encompass two-dimensional topology in their spatial structures, are promising for ultra-dense optical communications and advanced matter manipulation. Generating such light beams via a chip-based approach will…

Optics · Physics 2024-11-18 Wenbo Lin , Yasutomo Ota , Yasuhiko Arakawa , Satoshi Iwamoto

Recent years have seen a considerable surge of research on developing heuristic approaches to realize analog computing using physical waves. Among these, neuromorphic computing using light waves is envisioned to feature performance metrics…

Optics · Physics 2022-10-18 Cheng-Chia Tsai , Xiaoyan Huang , Zhicheng Wu , Zongfu Yu , Nanfang Yu

Optical neural networks (ONNs), or optical neuromorphic hardware accelerators, have the potential to dramatically enhance the computing power and energy efficiency of mainstream electronic processors, due to their ultralarge bandwidths of…

Optical computing has reemerged as a promising alternative computing paradigm for providing energy-efficient information processing in the age of artificial intelligence. Among various photonic neural network platforms, diffractive optical…

Optics · Physics 2025-02-18 Bahadır Utku Kesgin , Firdevs Yüce , Uğur Teğin

Optoelectronic functionalities of photodection and light harnessing rely on the band-to-band excitation of semiconductors, thus the spectral response of the devices is dictated and limited by their bandgap. A novel approach, free from this…

Mesoscale and Nanoscale Physics · Physics 2014-06-12 F. Pelayo García de Arquer , Agustín Mihi , Gerasimos Konstantatos

Optical differentiation and optical Hilbert transformation play important roles in communications, computing, information processing and signal analysis in optical domain which offering huge bandwidth. Meanwhile, silicon-based photonic…

Optics · Physics 2014-10-08 Ting Yang , Jianji Dong , Li Liu , Shasha Liao , Sisi Tan , Lei Shi , Dingshan Gao , Xinliang Zhang

Nonlinear photonics uses coherent interactions between optical waves to engineer functionality that is not possible with purely linear optics. Traditionally, the function of a nonlinear-optical device is determined during design and fixed…

Optical metasurfaces performing analog image processing - such as spatial differentiation and edge detection - hold the potential to reduce processing times and power consumption, while avoiding bulky 4F lens systems. However, current…

Optics · Physics 2023-11-08 Michele Cotrufo , Akshaj Arora , Sahitya Singh , Andrea Alù

Nonlinear photonic chips have succeeded in generating and processing signals all-optically with performance far superior to that possible electronically - particularly with respect to speed. Although silicon-on-insulator has been the…

Optics · Physics 2014-10-07 D. J. Moss , R. Morandotti

Topological insulators are innovative materials with semiconducting bulk together with surface states forming a Dirac cone, which ensure metallic conduction in the surface plane. Therefore, topological insulators represent an ideal platform…

Applied Physics · Physics 2019-04-02 Antonio Politano , Leonardo Viti , Miriam S. Vitiello

Optical parametric oscillators (OPOs) have been widely used for decades as tunable, narrow linewidth, and coherent light sources for reaching long wavelengths and are attractive for applications such as quantum random number generation and…

Hybrid integration of plasmonics and Si photonics is a promising architecture for global microprocessor interconnects. To this end, practical plasmonic devices not only should provide athermal, broadband operation over wavelength-scale…

Applied Physics · Physics 2017-10-13 Yiwen Su , Charles Lin , PoHan Chang , Amr S. Helmy

The integrated optical circuit is a promising architecture for the realization of complex quantum optical states and information networks. One element that is required for many of these applications is a high-efficiency photon detector…

Traditional photonic integrated circuit (PIC) inherits the mature CMOS fabrication process from the electronic integrated circuit (IC) industry. However, this process also limits the PIC structure to a single-waveguide-layer configuration.…

Optics · Physics 2022-08-23 Dachuan Wu , Bowen Yu , Venus Kakdarvishi , Yasha Yi

Centuries of effort to improve imaging has focused on perfecting and combining lenses to obtain better optical performance and new functionalities. The arrival of nanotechnology has brought to this effort engineered surfaces called…