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Topology optimization techniques have been applied in integrated optics and nanophotonics for the inverse design of devices with shapes that cannot be conceived by human intuition. At optical frequencies, these techniques have only been…

Optics · Physics 2022-04-15 Emadeldeen Hassan , Antonio Calà Lesina

Equipping robotic systems with the capacity to generate $\textit{ex novo}$ hardware during operation extends control of physical adaptability. Unlike modular systems that rely on discrete component integration pre- or post-deployment, we…

Intense laser-driven proton pulses, inherently broadband and highly divergent, pose a challenge to established beamline concepts on the path to application-adapted irradiation field formation, particularly for 3D. Here we experimentally…

In the medical domain, acquiring large datasets is challenging due to both accessibility issues and stringent privacy regulations. Consequently, data availability and privacy protection are major obstacles to applying machine learning in…

Image and Video Processing · Electrical Eng. & Systems 2025-07-02 Wenwu Tang , Khaled Seyam , Bin Yang

Since the advent of optogenetics, technology development has focused on new methods to optically interact with single nervous cells. This gave rise to the field of photonic neural interfaces, intended as the set of technologies that can…

Cell Behavior · Quantitative Biology 2019-07-15 Filippo Pisano , Marco Pisanello , Massimo De Vittorio , Ferruccio Pisanello

We propose an approach for the generation of topology-optimized structures with text-guided appearance stylization. This methodology aims to enrich the concurrent design of a structure's physical functionality and aesthetic appearance.…

Computational Engineering, Finance, and Science · Computer Science 2023-10-25 Shengze Zhong , Parinya Punpongsanon , Daisuke Iwai , Kosuke Sato

Drop-on-demand inkjet printing is a promising and commercially relevant technology for producing organic electronic devices of arbitrary shape on a wide variety of different substrates. In this work we transfer the inkjet printing process…

We have demonstrated the fabrication and characterization of 2D liquid-based multimode optical waveguide structures over a Polydimethylsiloxane (PDMS) material-based chip. Fabrication of two separate microstructures, one with a width of 14…

Optics · Physics 2023-01-27 Sanyogita , Amar Ghar , P. K. Panigrahi

Implantable retinal prostheses offer a promising solution to restore partial vision by circumventing damaged photoreceptor cells in the retina and directly stimulating the remaining functional retinal cells. However, the information…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Yuli Wu , Julian Wittmann , Peter Walter , Johannes Stegmaier

This paper reports FDTD simulations of optofluidic reconfiguration in two-dimensional silicon photonic crystal waveguides, treating structural plasticity (the creation and destruction of optical pathways) via selective fluid infiltration.…

Optics · Physics 2026-03-30 Steven Motta

We propose a novel scheme for controlling the injection of a high-quality electron bunch into a channel-guided laser plasma accelerator. This all-optical technique, constricted waveguide injection, creates a highly tunable controlled…

Accelerator Physics · Physics 2024-10-22 R. J. Shalloo , A. Ferran Pousa , M. Mewes , S. Jalas , M. Kirchen , R. D'Arcy , J. Osterhoff , K. Põder , M. Thévenet

We enhanced the total transmission of light through a disordered waveguide with spatially inhomogeneous scattering and loss by shaping the incident wavefront of a laser beam. Using an on-chip tapered lead, we were able to access all input…

Optics · Physics 2017-03-20 Raktim Sarma , Alexey Yamilov , Hui Cao

Waveguide design is crucial in developing efficient light delivery systems, requiring meticulous material selection, precise manufacturing, and rigorous performance optimization, including dispersion engineering. Here, we introduce…

Optics · Physics 2025-06-10 Yuntian Wang , Yuhang Li , Tianyi Gan , Kun Liao , Mona Jarrahi , Aydogan Ozcan

Photonic waveguides are prime candidates for integrated and parallel photonic interconnects. Such interconnects correspond to large-scale vector matrix products, which are at the heart of neural network computation. However, parallel…

Emerging Technologies · Computer Science 2020-06-29 Johnny Moughames , Xavier Porte , Michael Thiel , Gwenn Ulliac , Maxime Jacquot , Laurent Larger , Muamer Kadic , Daniel Brunner

This paper presents the initial development of a robotic additive manufacturing technology based on ultraviolet (UV)-curable thermoset polymers. This is designed to allow free-standing printing through partial UV curing and fiber…

Robotics · Computer Science 2021-08-25 Luis Velazquez , Genevieve Palardy , Corina Barbalata

We achieved continuous-wave 8.3-dB squeezed light generation using a terahertz-order-broadband waveguide optical parametric amplifier (OPA) by improving a measurement setup from our previous work [T. Kashiwazaki, et al., Appl. Phys. Lett.…

Self-supervised learning methods have witnessed a recent surge of interest after proving successful in multiple application fields. In this work, we leverage these techniques, and we propose 3D versions for five different self-supervised…

Computer Vision and Pattern Recognition · Computer Science 2020-11-03 Aiham Taleb , Winfried Loetzsch , Noel Danz , Julius Severin , Thomas Gaertner , Benjamin Bergner , Christoph Lippert

LightGuider is a novel guidance-based approach to interactive lighting design, which typically consists of interleaved 3D modeling operations and light transport simulations. Rather than having designers use a trial-and-error approach to…

Standard modern machine-learning-based imaging methods have faced challenges in medical applications due to the high cost of dataset construction and, thereby, the limited labeled training data available. Additionally, upon deployment,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Amin Karimi Monsefi , Payam Karisani , Mengxi Zhou , Stacey Choi , Nathan Doble , Heng Ji , Srinivasan Parthasarathy , Rajiv Ramnath

Surface plasmons in graphene provide a compelling strategy for advanced photonic technologies thanks to their tight confinement, fast response and tunability. Recent advances in the field of all optical generation of graphene plasmons in…

Optics · Physics 2022-06-08 Y. Li , N. An , Z. Lu , Y. Wang , B. Chang , T. Tan , X. Guo , X. Xu , J. He , H. Xia , Z. Wu , Y. Su , Y. Liu , Y. Rao , G. Soavi , B. Yao