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Photonics Spectra - April 2023


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Features
Smaller Optical Gyroscopes Navigate into Broader Markets The RQ-4 Global Hawk, Northrop Grumman’s high-altitude remotely piloted aircraft, has a maximum takeoff weight of 32,250 lb. The platform’s massive size affords it the ability to carry a...
Photovoltaics Power an Indoor Revolution Readers of a certain age may recall getting through math and science courses with the assistance of a trusty solar-powered calculator that could harvest just enough ambient light from the classroom...
Nuclear Fusion Drives Laser Development It is a rare event when a successful experiment in basic research makes it to the evening news. In December 2022, the U.S. secretary of energy announced a breakthrough in laser-based nuclear fusion....
Programmable Photonic Chips Adapt PICs to Multiple Futures While electronics are perfect for performing fast calculations, photonics are ideal for moving information around. A major drawback of the latter, however, is the slow and costly development process...
Editorial
The returns on discovery We generally relegate basic and applied research stories to the Technology News section each month in Photonics Spectra, and we reserve our explorations of technical, engineering, and industry trends for the magazine’s full-length feature articles. Our reasoning is that scientific discovery literally defines what is new in photonics. But occasionally, there’s a scientific breakthrough...
Technology News
Electrochromic Smart Window Provides High Performance at Low Cost Researchers at the Centre for Nano and Soft Matter Sciences (CeNS) and the Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) have fabricated a smart window that provides a low-cost alternative to the traditional smart windows used in buildings and cars. The researchers’ device incorporates a chemically synthesized conducting polymer as an electrochromic layer, coated over a...
Perovskite Prodding Reveals Structural Dynamics A Rice University research team, with help from the Department of Energy’s SLAC National Accelerator Laboratory, has directly measured the structural dynamics in 2D perovskites. The...
Speckle-correlation Technique Recovers Images of Obscured Objects in Real Time Imaging through a light-scattering medium, such as clouds in the sky or tissues in the body, poses special challenges. The scattered light must be reconstructed, typically by using complex optical...
Faster Detector Could Make Quantum Communication Practical NASA researchers have developed a detector that precisely measures single photons at high rates and could help to make high-speed quantum communication practical. The detector, created by researchers...
Superhydrophilic Coatings Increase Efficiency of Solar Cells Researchers at the Fraunhofer Institute for Organic Electronics, Electron Beam, and Plasma Technology FEP (Fraunhofer FEP) produced hydrophobic, or water-repelling, surfaces that become...
Signal Enhancement Enables Study of Label-Free Proteins Researchers at Institut Fresnel have developed a technique to detect the ultraviolet-autofluorescence signal in single proteins, opening the way for the label-free study of thousands of proteins...
Single-Pixel Camera Streams in Real Time at 100 fps The speed of most single-pixel imaging (SPI) systems is hampered by the refresh rates of digital micromirror devices (DMDs) and the time-consuming iterations of compressed-sensing (CS)-based...
Fully Tunable Method Strengthens Electron-triggered Light Emission A wavelength of visible light is about 1000 times larger than an electron. Because of the difference in scale, the interactions between photons and electrons are inherently weak. MIT researchers have...
Researchers Combine Two Light-Trapping Methods in Single Device Researchers from the University of Maryland’s Joint Quantum Institute (JQI) combined the qualities of two methods for light-trapping — whispering-gallery mode (WGM) and photonic crystals...
Laser Method Drills Taper-, Crack-Free Holes in Glass Researchers from the Institute of Intense Lasers and Applications (CELIA) at the University of Bordeaux have developed a glass micro-drilling method using a femtosecond laser operating in...
Hamamatsu Edges Closer to Compact Laser Fusion Source Building on an existing multiyear R&D pursuit to establish technology that produces laser pulses at 250 J with a repetition rate of 10 Hz, Hamamatsu Photonics has developed a laser system that...
Industry News
Swave Photonics Takes Top Prize at 2023 SPIE Startup Challenge Swave Photonics, a Silicon Valley-based developer of holographic extended reality (HXR) technology, earned the $10,000 top prize in the 2023 SPIE Startup Challenge. The annual competition, now in its...
Tech Transfer Center to Support Swiss Photonics Industry Set up with financial support from the Federal Department of Economic Affairs, Education, and Research, as well as from the Association of Advanced Manufacturing Technology Transfer Centers, the...
Rockley Photonics Files for Chapter 11 Bankruptcy Protection Silicon photonics company Rockley Photonics has filed a petition for Chapter 11 bankruptcy relief, the company disclosed in a Jan. 23 8-K filing. The move comes after Rockley received notice from the...
ESA Enlists Thales Alenia Space, Partners for Space-based Quantum Project Thales Alenia Space, a joint venture between Thales and Leonardo, has signed a contract with the European Space Agency (ESA) to lead the TeQuantS (technological development for space-based quantum...
Lockheed Martin Achieves First Light From Laser Defense System Lockheed Martin achieved first light from the Directed Energy Interceptor for Maneuver Short-Range Air Defense System (DEIMOS), verifying the beam quality of its 50-kW laser architecture developed as...
TRUMPF Invests in Quantum Tech Startup Quside TRUMPF has made a multimillion euro investment in Barcelona-based startup Quside, whose core product is a high-performance random number generator located in a photonic chip. According to TRUMPF,...
Quad-C Management to Acquire QED Technologies from Entegris Private equity firm Quad-C Management will acquire QED Technologies International from publicly traded entity Entegris, a supplier of advanced materials and process solutions for the semiconductor...
Thorlabs Adds JML Optical to Carve Out Rochester Presence Thorlabs has entered into a definitive purchase agreement to acquire JML Optical Industries LLC, a custom designer and manufacturer of precision optics. The transaction is expected to close later...
EPIC Insights
The Integration of Materials in Photonic Chips From the perspective of conventional semiconductor manufacturers, there are several challenges to the integration of photonic components on a chip. But perhaps the biggest challenge for photonic integrated circuits (photonic chips, or PICs) is that the demand faces an almost exponential growth in several market verticals, such as in fiber optics for data communications and telecommunications. In...
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