Optics & Photonics News

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Miniaturized Particle Detectors Could Broaden the Applications of Cherenkov Detection

Cherenkov radiation refers to the photon emission from the swift charged particle moves with the velocity greater than the phase velocity of light in the surrounding materials.

5 Jan 2022

Minimizing Noise Using Machine Learning

Ultra-precise lasers find their use in various applications. For example, power cable monitoring, quantum computers, optical atomic clocks, and much more. However, all lasers tend to make noise, which scientists from DTU Fotonik wish to reduce with the help of machine learning.

4 Jan 2022

New Technique Allows to Optically Determine the Previously Indistinguishable Spin States

The alternation between singlet and triplet states of electron pairs in charge-separated states plays an important role in nature.

4 Jan 2022

New Algorithm to Improve Optical-Based Hand Gesture Recognition

In the 2002 science fiction blockbuster film Minority Report, Tom Cruise's character John Anderton uses his hands, sheathed in special gloves, to interface with his wall-sized transparent computer screen. The computer recognizes his gestures to enlarge, zoom in, and swipe away.

29 Dec 2021

Lipid Droplets Offer Lensing Effect for Monitoring Subcellular Structures

With the demand in real-time monitoring of endoplasmic variations and rapid detection of extracellular signals, a great number of approaches to bioimaging have been developed.

28 Dec 2021

Study Demonstrates a Special Equal-Inclination Interference Employing Non-Monochromatic Photons

Optical interference is not only a fundamental phenomenon that has enabled new theories of light to be derived, but it has also been used in interferometry for the measurement of small displacements, refractive index changes, and surface irregularities.

28 Dec 2021

Meta-Optics with Waveguide Technologies Propels Photonic Integrated Circuits to New Heights

Comprised of judiciously engineered microscopic photonic structures with subwavelength features, the concept of metasurface and metamaterials have proven fruitful results in the realm of meta-optics. Previous research attentions are mainly devoted to applying meta-structures to tailor light in free space and develop relevant devices and applications.

28 Dec 2021

Experts Evaluate Recent Accomplishments in the Field of Holographic 3D Display

The pioneers of holography, Gabor, Leith, Upatnieks, and Denisyuk, predicted very early that the ultimate 3D display will be based on this technique. This conviction was rooted on the fact that holography is the only approach that can render all optical cues interpreted by the human visual system.

28 Dec 2021

Controlling Nanolasers with Magnets Leads to Better Photonics

A magnetic field can be used to switch nanolasers on and off, shows new research from Aalto University. The physics underlying this discovery paves the way for the development of optical signals that cannot be disturbed by external disruptions, leading to unprecedented robustness in signal processing.

24 Dec 2021

New Method to Stabilize Perovskites for Cheap Solar Cells

Researchers have developed a method to stabilise a promising material known as perovskite for cheap solar cells, without compromising its near-perfect performance.

24 Dec 2021

Optical Tweezers Made of Laser Light may Grab and Rotate Biological Micro-Objects

We can test the quality and freshness of fruits and vegetables with our fingers, and even industrial robots have been performing successfully at tactile applications for years.

24 Dec 2021

NTT: Realization of Modularized Quantum Light Source Toward Fault-tolerant Large-scale Universal Optical Quantum Computers

NTT Corporation in cooperation with the University of Tokyo (President: Teruo Fujii, Bunkyo-ku, Tokyo) and RIKEN has developed an optical fiber-coupled quantum light source (squeezed light source), which is a key technology for realizing a fault-tolerant large-scale universal optical quantum computer.

24 Dec 2021

Scientists Achieve Efficient Electron-Beam Modulation Using Integrated Photonics

The transmission electron microscope (TEM) can image molecular structures at the atomic scale by using electrons instead of light, and has revolutionized materials science and structural biology.

23 Dec 2021

Toshiba Raises the Power Conversion Efficiency of Transparent Cu2O Solar Cell to 8.4%

Toshiba Corporation today announced that it has successfully raised the power conversion efficiency (PCE) of its transparent Cu2O solar cell to 8.4%, the world's highest level for a reported Cu2O solar cell. With the cell positioned as the top cell over a 25% PCE silicon cell (Cu2O-Si tandem cell), Toshiba estimates that an overall PCE of 27.4% can be achieved, notably above the 26.7% highest PCE reported for any standard silicon cell.

23 Dec 2021

Novel Optical Component Made from Silicon Nanoparticles for New Applications

Miniaturization of optical components is a challenge in photonics. Researchers of Karlsruhe Institute of Technology (KIT) and Friedrich Schiller University of Jena have now succeeded in developing a diffuser, a disk that scatters light, based on silicon nanoparticles.

23 Dec 2021