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Optics & Photonics news
Scientists demonstrate advanced low-coherence BOCDR system using periodic pseudo-random modulation
Scientists have successfully demonstrated a low-coherence Brillouin optical correlation-domain reflectometry (BOCDR) system that overcomes longstanding challenges related to spatial resolution and measurement range in mapping ...
Optics & Photonics
Oct 1, 2024
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Researchers observe hidden deformations in complex light fields
Everyday experience tells us that light reflected from a perfectly flat mirror will give us the correct image without any deformation. Interestingly, this is not the case when the light field itself is structured in a complex ...
Optics & Photonics
Oct 1, 2024
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Researchers harness liquid crystal structures to design simple, yet versatile bifocal lenses
Researchers have developed a new type of bifocal lens that offers a simple way to achieve two foci (or spots) with intensities that can be adjusted by applying external voltage. The lenses, which use two layers of liquid ...
Optics & Photonics
Oct 1, 2024
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Headband-like device uses speckle contrast optical spectroscopy to predict stroke risk
A team of researchers from the Keck School of Medicine of USC and California Institute of Technology (Caltech) have developed a potential new way to measure a person's stroke risk that is cost-effective and noninvasive, akin ...
Optics & Photonics
Sep 30, 2024
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A new apparatus for analyzing partial coherence in integrated photonic networks
Anyone familiar with optics labs is familiar with the extremes of light coherence: laser beams are highly coherent, producing clear interference patterns used for precise applications like atomic manipulation or precise sensing. ...
Optics & Photonics
Sep 30, 2024
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Inverse-design method enhances performance and reliability of on-chip spectrometers
In a study published in Engineering, researchers from Nanjing University of Aeronautics and Astronautics and Zhejiang University have unveiled a pioneering approach to designing on-chip computational spectrometers, heralding ...
Optics & Photonics
Sep 27, 2024
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Research team succeeds in ultra-fast switching of tiny light sources
Extremely thin materials consisting of just a few atomic layers promise applications for electronics and quantum technologies. An international team led by TU Dresden has now made remarkable progress with an experiment conducted ...
Optics & Photonics
Sep 27, 2024
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Nonlinear optical metasurface achieves electrically tunable third-harmonic generation
A recent study has unveiled a transformative nonlinear optical metasurface technology. This new technology, characterized by structures smaller than the wavelength of light, paves the way for significant advancements in next-generation ...
Optics & Photonics
Sep 27, 2024
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New upgrade will supercharge atomic vision of the world's most powerful X-ray laser
The Department of Energy (DOE) has given the green light for construction to begin on a high-energy upgrade that will further boost the performance of the Linac Coherent Light Source (LCLS), the world's most powerful X-ray ...
Optics & Photonics
Sep 27, 2024
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Discovering quasiparticles ejected from color centers in diamond crystals
A research group led by University of Tsukuba has observed the cooperative behavior of polaron quasiparticles formed by the collective interaction of electrons and lattice vibrations around color centers in diamond crystals.
Condensed Matter
Sep 27, 2024
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Ultra-high speed camera for molecules: Attosecond spectroscopy captures electron transfer dynamics
In nature, photosynthesis powers plants and bacteria; within solar panels, photovoltaics transform light into electric energy. These processes are driven by electronic motion and imply charge transfer at the molecular level. ...
Optics & Photonics
Sep 25, 2024
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Shrinking augmented reality displays into eyeglasses to expand their use
Augmented reality (AR) takes digital images and superimposes them onto real-world views. But AR is more than a new way to play video games; it could transform surgery and self-driving cars. To make the technology easier to ...
Optics & Photonics
Sep 25, 2024
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A versatile approach to realize quantum-enhanced metrology with large Fock states
The collecting of highly precise measurements can enable research developments and technological advancements in numerous fields. In physics, high-precision measurements can unveil new phenomena and experimentally validate ...
New insights into hot carrier solar cells: Study explores hot electron tunneling and collection to enhance efficiency
Hot carrier solar cells, a concept introduced several decades ago, have long been seen as a potential breakthrough in solar energy technology. These cells could surpass the Shockley–Queisser efficiency limit, which is a ...
Condensed Matter
Sep 24, 2024
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Controlling light while measuring trapped ion qubits
Quantum information is fragile and often difficult to protect during experiments. Protecting qubits from accidental measurements is essential for controlled quantum operations, especially during state-destroying measurements ...
Optics & Photonics
Sep 23, 2024
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Physicists use quantum correlations of photon pairs to hide images from standard cameras
What if you could hide an image in plain sight—so well that even the most advanced cameras couldn't detect it? Imagine encoding visual information using the properties of quantum optics, rendering it invisible to normal ...
Scientists propose a new method to search for dark matter using LIGO
A new study published in Physical Review Letters (PRL) proposes using gravitational wave detectors like LIGO to search for scalar field dark matter.
Researchers improve tunability in optical differentiation
A new technique may make it easier for researchers to create real-time images of microscopic samples by considering the waves that propagate through sample surfaces as light interacts with them.
Optics & Photonics
Sep 19, 2024
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Newly developed OLED could enable compact, lightweight night vision
A new type of OLED (organic light emitting diode) could replace bulky night vision goggles with lightweight glasses, making them cheaper and more practical for prolonged use, according to University of Michigan researchers.
Optics & Photonics
Sep 17, 2024
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New method improves understanding of light-wave propagation in anisotropic materials
Understanding how light travels through various materials is essential for many fields, from medical imaging to manufacturing. However, due to their structure, materials often show directional differences in how they scatter ...
Optics & Photonics
Sep 17, 2024
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More news
New technology produces ultrashort ion pulses
Generating spin currents directly using ultrashort laser pulses
Researchers simulate novel metal-filtered VCSEL modal control
Wave scattering simulation unlocks potential metamaterials
Physicists achieve ultrafast steering of quantum-entangled electrons
Latent information carried by photons enables super-precise spectrometer
Study accelerates AI-based particle size probe for medication manufacturing
Smartphone-based microscope rapidly reconstructs 3D holograms
Unique nanodisk pushes photonics research forward
Scientists prove long-standing wave amplification theory
Electrically modulated light antenna points the way to faster computer chips
Plasmonic modulators could enable high-capacity space communication
Other news
Study traces wild cat eye color diversity to ancient ancestor
New triple star system sets shortest orbital period record
Researchers determine how a protein contributes to human immune defense against RNA viruses
A window into the body: New technique makes skin invisible
Novel metasurface enables temperature-adaptive radiative cooling
Entangled photon pairs enable hidden image encoding
New super-Neptune exoplanet discovered
First map of every neuron in an adult brain has been produced for a fruit fly
