Researchers invent an optical convolutional neural network accelerator for machine learning — ScienceDaily

Researchers at the George Washington University, together with researchers at the University of California, Los Angeles, and the deep-tech venture startup Optelligence LLC, have developed an optical convolutional neural network accelerator capable of processing large amounts of information, on the order of petabytes, per second. This innovation, which harnesses the massive parallelism of light, heralds […]

Trapping nanoparticles with optical tweezers

Optical tweezers are a rapidly growing technology, and have opened up a wide variety of research applications in recent years. The devices operate by trapping particles at the focal points of tightly focused laser beams, allowing researchers to manipulate the objects without any physical contact. So far, optical tweezers have been used to confine objects […]

Breakthrough optical sensor mimics human eye, a key step toward better AI — ScienceDaily

Researchers at Oregon State University are making key advances with a new type of optical sensor that more closely mimics the human eye’s ability to perceive changes in its visual field. The sensor is a major breakthrough for fields such as image recognition, robotics and artificial intelligence. Findings by OSU College of Engineering researcher John […]

Researchers develop open-source optical toolbox

The open-source 3D-printed cube can host self-designed inserts, electrical and optical components. The resulting modules can be combined to form complex optical instruments. This allows the smartphone to be transformed into a powerful microscope in no time at all — and at almost any place on earth — in order to pose and answer completely […]

Researchers give radar new abilities using optical data about meteors — ScienceDaily

It is thought that over 1,000 kilograms of so-called interplanetary dust falls to Earth every day. This dust is essentially an untold number of small faint meteors, discarded remnants of asteroids and comets that pass by the Earth. Two ways to study faint meteors are radar and optical observations, each with advantages and limitations. Astronomers […]

Investigating optical activity under an external magnetic field

Credit: Petr Kratochvil/public domain Optical activity in chiral molecules has become a hot topic in physics and optics, representing the ability to manipulate the polarized state of light. Understanding how molecules rotate the plane of plane-polarized light has widespread applications, from analytic chemistry to biology and medicine—where it can, for example, be used to detect […]

Asymmetric optical camouflage: Tuneable reflective color accompanied by optical Janus effect

IMAGE: a, Conceptual illustration of direction-sensitive asymmetric optical camouflage by tuneable optical Janus effect b, SEM images of the nanostructured Au film and CYTOP nanopillars. Scale bars, 200 nm. c, Photographs… view more  Credit: Taehyun Kim, Eui-Sang Yu, Young-Gyu Bae, Jongsu Lee, In Soo Kim, Seok Chung, Seung-Yeol Lee, and Yong-Sang Ryu In modern optics, a […]

Researchers create optical framed knots to encode information

Top view of the framed knots generated in this work. Credit: University of Ottawa In a world first, researchers from the University of Ottawa in collaboration with Israeli scientists have been able to create optical framed knots in the laboratory that could potentially be applied in modern technologies. Their work opens the door to new […]

Researchers create optical framed knots to encode information — ScienceDaily

In a world first, researchers from the University of Ottawa in collaboration with Israeli scientists have been able to create optical framed knots in the laboratory that could potentially be applied in modern technologies. Their work opens the door to new methods of distributing secret cryptographic keys — used to encrypt and decrypt data, ensure […]

Classic optical illusion leads to the discovery of critical neurons in zebrafish.

IMAGE: Isolating a key element in the motion processing using MAE. By inducing an optical illusion in zebrafish larvae, scientists have identified a key cluster of cells in the brain that… view more  Credit: © Fumi Kubo at National Institute of Genetics (NIG) By exposing larval zebrafish to a well-known optical illusion, researchers at the Max […]