A startling and unprecedented front has opened in the ongoing conflict between the United States and Iran, and it is located not on a traditional battlefield, but within the digital architecture of ...

Add Yahoo as a preferred source to see more of our stories on Google. Just five days before Iran claimed to have struck a U.S. F-35 stealth fighter, a Chinese social media account shared a detailed ...

Electro-optical detectors are used to measure or sense the radiation emitted or reflected by objects within the detector’s optical field of view (FOV). Passive systems operate without any illumination ...

This study presents the novel optical passive components for spatial frequency division demultiplexing of terahertz (THz) radiation. Four different diffractive optical elements (DOEs) were designed as ...

Abstract: Adversarial attacks have exposed serious vulnerabilities in deep neural networks (DNNs), causing misclassifications through human-imperceptible perturbations to DNN inputs. We explore a new ...

Plenary presentations by Optica fellows Dana Anderson, Hui Cao, Peter Delfyett and Michal Lipson At CLEO 2022, Optica members will have the opportunity to connect at networking meetups, honor recent ...

Abstract: This Video Tutorial, developed and presented by Dr. S.A. Hovanessian of The Aerospace Corporation, begins with an overall review of sensor systems operating in various wavelengths of RF, ...

Environmental impact assessment has become an important issue for deep-sea resource mining. The International Seabed Authority has recently developed recommendations for guidelines on environmental ...

The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acsnano.0c01269. Comparison to the previously proposed design; calculating ...

Some organisms have adapted to natural sunlight, while others (e.g., rhizosphere microbiomes) have evolved in darker conditions. Yet, modern microscopy requires higher light levels than natural ...