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Optics & Photonics news
Photoacoustic spectroscopy approach achieves real-time detection of low gas concentrations
Researchers have developed a new method for quickly detecting and identifying very low concentrations of gases. The new approach, called coherently controlled quartz-enhanced photoacoustic spectroscopy, could form the basis ...
Optics & Photonics
19 hours ago
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AI technique generates clear images of thick biological samples without additional hardware
Depth degradation is a problem biologists know all too well: The deeper you look into a sample, the fuzzier the image becomes. A worm embryo or a piece of tissue may only be tens of microns thick, but the bending of light ...
Optics & Photonics
Jan 7, 2025
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Optical metrology review explores new possibilities with twisted light
Metrology serves as the cornerstone of modern industry, providing the key standards by which we measure the world. Optical metrology, in particular, has historically leveraged the notion of interference, essentially unchanged ...
Optics & Photonics
Jan 7, 2025
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Starlight to sight: Researchers develop short-wave infrared technology to allow starlight detection
Prof Zhang Zhiyong's team at Peking University developed a heterojunction-gated field-effect transistor (HGFET) that achieves high sensitivity in short-wave infrared detection, with a recorded specific detectivity above 1014 ...
Optics & Photonics
Jan 2, 2025
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Building better infrared sensors: Novel photodiode design boosts responsivity
Detecting infrared light is critical in an enormous range of technologies, from remote controls to autofocus systems to self-driving cars and virtual reality headsets. That means there would be major benefits from improving ...
Optics & Photonics
Jan 2, 2025
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Researchers improve chaotic mapping for super-resolution image reconstruction
Super-resolution (SR) technology plays a pivotal role in enhancing the quality of images. SR reconstruction aims to generate high-resolution images from low-resolution ones. Traditional methods often result in blurred or ...
Optics & Photonics
Dec 30, 2024
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A new structure design enables a dual-function system for infrared camouflage and thermal management
Combining metallic glass with the Berreman mode of epsilon-near-zero (ENZ) thin films achieves a dual-function system for infrared camouflage and thermal management within an identical wavelength region of the atmospheric ...
Optics & Photonics
Dec 27, 2024
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Researchers develop novel photopyroelectric tweezer for versatile manipulation
Optical tweezers and related techniques provide extraordinary opportunities for research and applications in the physical, biological, and medical fields. However, certain requirements such as high-intensity laser beams, ...
Optics & Photonics
Dec 27, 2024
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Low-frequency photonic simulator breaks barriers
A research team led by Prof. Li Chuanfeng from the University of Science and Technology of China (USTC) has achieved a breakthrough in quantum photonics. They developed an on-chip photonic simulator capable of simulating ...
Optics & Photonics
Dec 27, 2024
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Novel molecular design achieves 1,300-fold increase in scintillator radioluminescence
Scientists from the National University of Singapore (NUS) have developed a highly effective and general molecular design that enables an enhancement in radioluminescence within organometallic scintillators by more than three ...
Optics & Photonics
Dec 24, 2024
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107
Researchers reveal full-gray optical trap in structured light
A research group led by Prof. Yao Baoli and Dr. Xu Xiaohao from Xi'an Institute of Optics and Precision Mechanics (XIOPM) of the Chinese Academy of Sciences have revealed a full-gray optical trap in structured light, which ...
Optics & Photonics
Dec 24, 2024
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Twisted Edison: Filaments curling at the nanoscale produce light waves that twirl as they travel
Bright, twisted light can be produced with technology similar to an Edison light bulb, researchers at the University of Michigan have shown. The finding adds nuance to fundamental physics while offering a new avenue for robotic ...
General Physics
Dec 23, 2024
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Printable laser-emitting droplets offer new display technology
Researchers at the University of Tsukuba have developed an innovative method for rapidly creating laser light sources in large quantities using an inkjet printer that ejects laser-emitting droplets.
Optics & Photonics
Dec 23, 2024
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New electron microscopy technique reveals complex spin structures at femtosecond timescales
Plasmons are collective oscillations of electrons in a solid and are important for a wide range of applications, such as sensing, catalysis, and light harvesting. Plasmonic waves that travel along the surface of a metal, ...
Condensed Matter
Dec 20, 2024
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197
Team presents first demonstration of quantum teleportation over busy internet cables
Northwestern University engineers are the first to successfully demonstrate quantum teleportation over a fiberoptic cable already carrying internet traffic.
Optics & Photonics
Dec 20, 2024
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Dual-comb method achieves first precise absolute distance measurement over 100 km
A team of physicists and engineers at China's Hefei National Laboratory has succeeded in conducting the first instance of precise absolute distance measurement over a path exceeding 100 km. The group has written a paper describing ...
Compact on-chip polarimeter measures light polarization with high accuracy
Reliably measuring the polarization state of light is crucial for various technological applications, ranging from optical communication to biomedical imaging. Yet conventional polarimeters are made of bulky components, which ...
Purple diamond maser could one day amplify signals from deep space
UNSW engineers have developed and built a special maser system that boosts microwave signals—such as those from deep space—but does not need to be super-cooled.
Optics & Photonics
Dec 19, 2024
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108
Optical spring enables programmable defect mode in new mechanical crystal
Mechanical crystals, also known as phononic crystals, are materials that can control the propagation of vibrations or sound waves, just like photonic crystals control the flow of light. The introduction of defects in these ...
Miniaturized all-fiber photoacoustic spectrometer for intravascular gas detection rivals lab-based systems
Miniaturized spectroscopy systems that can detect trace concentrations at the parts-per-billion (ppb) level are of the utmost importance in applications ranging from environmental monitoring and industrial process control ...
Optics & Photonics
Dec 18, 2024
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Scientists control quantum states in new energy range
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