3D Printed Glass

Researchers have used multi-material 3D printed glass to create tailored gradient refractive index glass optics that could make for better military specialized eyewear and virtual reality goggles. The new technique could achieve a variety of conventional and unconventional optical functions in a flat glass component (with no surface curvature), offering new optical design versatility in [..]

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Optical Modulator

Silicon photonics researchers have demonstrated the first all-silicon optical transmitter at 100Gbps and beyond without the use of digital signal processing. The new optical modulator almost doubles the maximum data rate of current state-of-the-art devices, demonstrating the potential for low power low-cost all-silicon solutions that avoid complicating fabrication processes with new materials that are not [..]

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Tunable Optical Properties

The scientific community has witnessed the tremendous expansion of research on layered (i.e., two-dimensional, 2D) materials, with increasing recent focus on applications to photonics. Layered materials are particularly exciting for manipulating light (tunable optical properties) in the confined geometry of photonic integrated circuits, where key material properties include strong and controllable light-matter interaction and limited [..]

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Holographic Screens for Mixed Reality

Scientists have created interactive, slim-paneled holographic screens (displays) that increase the viewing angle for 3D videos by 30 times. The ultra-thin glass prototype could make it easier to incorporate holographic video displays into mobile devices in the future.  The team has used their holographic screens to view a full-screen, 4K interactive video of a swimming [..]

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Innovative Components Design

Today’s optical designs have overcome many of the problems that plagued early instrumentation, but reductions in size, weight, and power (SWaP) remain an ongoing goal. Now, researchers have developed a new imaging spectrometer with a significant reduction in SWaP while maintaining performance using innovative components. The current state of the art of imaging spectrometers is [..]

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Quantum Light Detection using Integrated Photonics

Researchers have made a new miniaturized light detector to measure features of quantum light in more detail than ever before. The device, made from two silicon chips working together, was used to measure the unique properties of “squeezed” quantum light at record-high speeds. Harnessing the unique properties of quantum physics promises novel routes to outperform [..]

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Laser Light

Researchers have designed novel linear nanomotors that can be moved in controlled directions using laser light. This work opens the way for new microfluidics, including lab-on-a-chip systems with optically actuated pumps and valves. The scientists have introduced a system of linear motors made from gold nanorods that can move in a controlled direction when exposed [..]

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Gold Nanoparticles For Live-Cell Imaging

Researchers in Japan have shown that a glass surface embedded with self-assembled gold nanoparticles can improve resolution with a little added cost even using a conventional widefield microscope, facilitating high-resolution fluorescence microscopy capable of high-speed imaging of living cells. Because optical microscopes magnify light to obtain detailed images of a structure, the size of objects [..]

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OLED Display Using Optical Metasurfaces

A team of scientists describes a new OLED display that can pack in 10,000 pixels per inch with room to scale. In comparison, today’s smartphone and VR displays are less than 1,000 pixels per inch. The new display was born from a breakthrough in solar cells, where the scientists used optical metasurfaces — these are [..]

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Superresolution Microscopy

Superresolution microscopy – a technology that enables the acquisition of fluorescent micrographs of samples with a resolution well below the optical diffraction limit of ~250 nm – is rapidly evolving. Several methods have been developed during the past two decades that allow for this extension of conventional optical microscopy, and they have substantially contributed to [..]

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Brillouin Spectroscopy

Many problems in mechanobiology urgently require the characterization of the micromechanical properties of cells and tissues. Brillouin spectroscopy (light scattering) has been proposed as an emerging optical elastography technique to meet this need. However, the information contained in the Brillouin spectrum is still a matter of debate because of fundamental problems in understanding the role [..]

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Biosensor Devices

Newly developed biosensor devices linked to smartphones could help medical practitioners dramatically cut down the real-time detection rates in the battle against COVID-19 and other future viral outbreaks. Scientists and engineers have created a novel Computational Fluid Dynamics (CFD) platform to aid biosensor devices to detect biological species and help control the spread of virus [..]

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Face Biometrics

A sampling of commercial facial recognition algorithms seems to suggest that face biometrics systems are currently too dependent on certain attributes to differentiate as easily between different people who share race and gender categories. A paper explores the issue with five unnamed commercial facial recognition algorithms, with a commercial iris recognition algorithm as a control. [..]

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Optical Wiring

Researchers have demonstrated a new optical wiring technique for carrying out sensitive quantum operations on atoms. In this technique, the control laser light is delivered directly inside a chip. This should make it possible to build large-scale quantum computers based on trapped atoms. Already in current small-scale systems, conventional optics are a significant source of [..]

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Integrated Neurophotonics

To deepen their understanding of the brain, neuroscientists must be able to map in great detail the neural circuits that are responsible for tasks such as processing sensory information or forming new memories. Now, a team of researchers has described a new integrated neurophotonics approach that may allow for the activity of all of the [..]

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Terminal Scanner

The terminal scanner installed at Marshall Hall, the U.S. Army Reserve Command, and the U.S. Forces Command headquarters scans any soldiers’ or civilians’ temperatures via the wrist. It also photographs their faces as they enter Marshall Hall. A major benefit of this terminal scanner is that it doesn’t require any touching. The device is officially [..]

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Adaptive Optics

Rochester researchers demonstrate a way to track the interactions of microscopic immune cells in a living eye without dyes or damage, a first for imaging science. Combining infrared videography (adaptive optics) and artificial intelligence, the new technique could be a ‘game-changer’ for some clinical diagnoses as well as for fields like pharmaceuticals. The researchers integrated [..]

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