https://phys.org/physics-news/optics-photonics en-us The latest news on Optics and Photonics Researchers from Skoltech, the University of Warsaw, and the University of Iceland have demonstrated that by optical means it is possible to excite and stir an exciton-polariton condensate, which emits a linearly polarized light with a polarization axis following the stirring direction. https://phys.org/news/2024-11-scientists-optical-nuclear-magnetic-resonance.html Condensed Matter Optics & Photonics Tue, 05 Nov 2024 07:02:05 EST news650012521 Two-photon vision is a novel method with great potential for the future of ophthalmic diagnostics. Although it has many advantages, it requires improvement in key areas. International Centre for Eye Research (ICTER) scientists have taken a step forward by improving this technology and opening up new perspectives in ocular medicine. https://phys.org/news/2024-11-scientists-decipher-photon-vision.html Optics & Photonics Mon, 04 Nov 2024 15:51:43 EST news649957890 Using simple circuitry, polarizing film, and LEGO toy bricks, an undergraduate physics student from the Ateneo de Manila University built an improvised polarimeter that can optically assess the purity of Vitamin C (ascorbic acid) and other chiral substances. https://phys.org/news/2024-11-student-chemical-purity-tester-lego.html General Physics Optics & Photonics Mon, 04 Nov 2024 11:05:03 EST news649940701 Scientists have taken inspiration from the way sunlight passes through clouds to discover an entirely new way of controlling and guiding light. https://phys.org/news/2024-11-cloud-method-waveguiding-mechanism-ways.html Optics & Photonics Fri, 01 Nov 2024 11:31:25 EDT news649679478 A U.S. Naval Research Laboratory (NRL) multi-disciplinary team developed a new paradigm for the control of quantum emitters, providing a new method for modulating and encoding quantum photonic information on a single photon light stream. https://phys.org/news/2024-10-paradigm-quantum-emitters-modulating-encoding.html Optics & Photonics Quantum Physics Thu, 31 Oct 2024 14:15:38 EDT news649602935 Enough landmines are buried underground worldwide to circle Earth twice at the equator, but the identification and removal of these explosives is costly and time-consuming. https://phys.org/news/2024-10-laser-vibration-technology-landmines-faster.html Optics & Photonics Thu, 31 Oct 2024 11:15:19 EDT news649592110 Researchers have developed a new ultrafast laser platform that generates ultra-broadband ultraviolet (UV) frequency combs with an unprecedented one million comb lines, providing exceptional spectral resolution. The new approach, which also produces extremely accurate and stable frequencies, could enhance high-resolution atomic and molecular spectroscopy. https://phys.org/news/2024-10-broadband-uv-frequency-unprecedented-spectral.html Optics & Photonics Thu, 31 Oct 2024 00:00:01 EDT news649500030 The conservation law is a fundamental tool that significantly aids our quest to understand the world, playing a crucial role across various scientific disciplines. Particularly in strong-field physics, these laws enhance our comprehension of atomic and molecular structures as well as the ultrafast dynamics of electrons. https://phys.org/news/2024-10-law-subcycle-strong-field-ionization.html General Physics Optics & Photonics Wed, 30 Oct 2024 15:00:14 EDT news649519202 In space exploration, long-distance optical links can now be used to transmit images, films and data from space probes to Earth using light. But in order for the signals to reach all the way and not be disturbed along the way, hypersensitive receivers and noise-free amplifiers are required. https://phys.org/news/2024-10-optical-amplifier-sensitive-pave-faster.html Optics & Photonics Wed, 30 Oct 2024 12:50:13 EDT news649511403 A team of researchers from the University of California, Los Angeles (UCLA) has unveiled a new development in optical imaging technology that could significantly enhance visual information processing and communication systems. https://phys.org/news/2024-10-partially-coherent-unidirectional-imaging-visual.html Optics & Photonics Mon, 28 Oct 2024 09:21:04 EDT news649326062 A team led by Prof. Sun Haiding from the University of Science and Technology of China (USTC) developed a vertically integrated micro-scale light-emitting diode (micro-LED) array which was then applied in deep ultraviolet (DUV) maskless photolithography system for the first time. Their study was published in Laser & Photonics Reviews. https://phys.org/news/2024-10-deep-ultraviolet-micro-array-advances.html Optics & Photonics Fri, 25 Oct 2024 13:52:24 EDT news649083132 An Aston University researcher has developed a new technique using light that could revolutionize non-invasive medical diagnostics and optical communication. The research showcases how a type of light called the orbital angular momentum (OAM) can be harnessed to improve imaging and data transmission through skin and other biological tissues. https://phys.org/news/2024-10-optical-technique-orbital-angular-momentum.html Optics & Photonics Fri, 25 Oct 2024 13:51:04 EDT news649083061 The Attosecond Science group at the Center for Free-Electron Laser Science has developed a novel light source capable of producing extremely short pulses for the investigation of UV-induced molecular dynamics with unprecedented temporal resolution. Scientists from the University of Hamburg and from DESY describe their unique observations in an article published in Nature Communications. https://phys.org/news/2024-10-source-enables-temporal-resolution-uv.html Optics & Photonics Fri, 25 Oct 2024 12:39:51 EDT news649078789 For the first time, EPFL researchers have exclusively observed molecules participating in hydrogen bonds in liquid water, measuring electronic and nuclear quantum effects that were previously accessible only via theoretical simulations. https://phys.org/news/2024-10-spectroscopy-method-reveals-quantum-secrets.html Optics & Photonics Quantum Physics Fri, 25 Oct 2024 11:02:35 EDT news649072951 For the first time ever, scientists at Paderborn University have used high-performance computing (HPC) at large scales to analyze a quantum photonics experiment. In specific terms, this involved the tomographic reconstruction of experimental data from a quantum detector. This is a device that measures individual photons. https://phys.org/news/2024-10-high-quantum-photonics.html Optics & Photonics Quantum Physics Thu, 24 Oct 2024 16:20:47 EDT news649005640 Researchers have developed a faster and more accurate method for acquiring and reconstructing high-quality 3D surface measurements. The approach could greatly improve the speed and accuracy of surface measurements used for industrial inspection, medical applications, robotic vision and more. https://phys.org/news/2024-10-fringe-photometric-stereo-method-accuracy.html Optics & Photonics Thu, 24 Oct 2024 11:37:32 EDT news648988642 Researchers Takuma Nakamura, Kazuki Hashimoto, and Takuro Ideguchi of the Institute for Photon Science and Technology at the University of Tokyo have increased by 100-fold the measurement rate of Raman spectroscopy, a common technique for measuring the "vibrational fingerprint" of molecules in order to identify them. https://phys.org/news/2024-10-scientists-successfully-raman-spectroscopy.html Optics & Photonics Wed, 23 Oct 2024 15:47:03 EDT news648917221 For the first time, an international cadre of electrical engineers has developed a new method for photonic in-memory computing that could make optical computing a reality in the near future. https://phys.org/news/2024-10-multi-breakthrough-optical-faster-efficient.html Optics & Photonics Wed, 23 Oct 2024 14:44:24 EDT news648913460 Spectrometers are technology for reading light that date back to the era of famed 17th-century physicist Isaac Newton. They work by breaking down light waves into their different colors—or spectra—to provide information about the makeup of the objects being measured. https://phys.org/news/2024-10-ultra-small-spectrometer-yields-power.html Optics & Photonics Wed, 23 Oct 2024 13:08:32 EDT news648907707 Researchers at Monash University have developed an artificial intelligence (AI) model that significantly improves the accuracy of four-dimensional scanning transmission electron microscopy (4D STEM) images. https://phys.org/news/2024-10-ai-4d-stem-imaging-delicate.html Condensed Matter Optics & Photonics Wed, 23 Oct 2024 11:26:06 EDT news648901563 A team of researchers has for the first time successfully used lasers to generate guided sound waves on the surface of a microchip. These acoustic waves, akin to the surface waves produced during an earthquake, travel across the chip at frequencies nearly a billion times higher than those found in earth tremors. https://phys.org/news/2024-10-microchip-harnesses-surface-advanced-technologies.html Optics & Photonics Wed, 23 Oct 2024 09:42:02 EDT news648895317 In an advance that could revolutionize biomarker detection, researchers at the Max Planck Institute for the Science of Light have developed a novel technique called femtosecond fieldoscopy. This method enables the precise measurement of minute liquid quantities, down to the micromolar level, with unmatched sensitivity in the near-infrared region. https://phys.org/news/2024-10-femtosecond-fieldoscopy-accesses-molecule-fingerprints.html Optics & Photonics Tue, 22 Oct 2024 12:28:03 EDT news648818881 A research team has proposed a wind sensing lidar theory based on up-conversion quantum interference and successfully developed a prototype. Their work is published in ACS Photonics. https://phys.org/news/2024-10-quantum-lidar-high-sensitivity.html Optics & Photonics Quantum Physics Mon, 21 Oct 2024 11:45:03 EDT news648729901 Modern high-speed internet uses light to quickly and reliably transmit large amounts of data through fiber-optic cables, but currently, light signals hit a bottleneck when data processing is necessary. For that, they must convert into electrical signals for processing before further transmission. https://phys.org/news/2024-10-optical-device-paves-faster-fiber.html Optics & Photonics Sat, 19 Oct 2024 13:21:23 EDT news648562870 A study by researchers from the Institute of Applied Physics at the Hebrew University of Jerusalem, published in Nature Photonics, presents a new method for non-invasive high-resolution imaging through highly scattering media. https://phys.org/news/2024-10-image-holographic-wavefront-fast-versatile.html Optics & Photonics Fri, 18 Oct 2024 05:00:01 EDT news648399213 Fluorescence microscopy is a powerful tool in biology, allowing researchers to visualize the intricate world of cells and tissues at a molecular level. While this technique has revolutionized our understanding of biological processes, imaging large and complex 3D structures, such as embryos or organoids, remains a challenge. This is especially true when studying intricate details beyond the optical resolution limit using structured illumination microscopy (SIM). https://phys.org/news/2024-10-fast-super-microscopy-enables-illumination.html Optics & Photonics Fri, 18 Oct 2024 04:30:02 EDT news648444593 Optical forces, which act like an invisible "hand," are capable of precisely controlling tiny particles. Optical tweezers, a well-known tool, use this force to capture and manipulate small objects such as cells, bacteria, and viruses. This effect is based on the transfer of momentum from photons to particles—when light interacts with a particle, it generates enough force to move it. Arthur Ashkin's development of optical tweezers earned him the Nobel Prize in Physics in 2018. https://phys.org/news/2024-10-method-optical-fermi-arcs-weyl.html Optics & Photonics Thu, 17 Oct 2024 15:54:05 EDT news648399241 A new study opens the door to cutting-edge solutions that could contribute to the realization of a system capable of processing quantum information in a simple yet powerful way. https://phys.org/news/2024-10-quantum-breakthrough-synthetic-dimensions-efficiently.html Optics & Photonics Quantum Physics Thu, 17 Oct 2024 12:36:04 EDT news648387357 Thin-film lithium niobate is an emerging nonlinear integrated photonics platform ideally suited for quantum applications. Through spontaneous parametric down-conversion (SPDC), it can generate correlated photon pairs for quantum key distribution, teleportation, and computing. https://phys.org/news/2024-10-method-generate-photon-pairs-efficiently.html Optics & Photonics Wed, 16 Oct 2024 16:27:16 EDT news648314834 Infrared imaging technology is crucial for advancing our understanding of the world, from exploring biological specimens to inspecting complex materials and detecting hidden patterns in physical systems. https://phys.org/news/2024-10-silicon-metasurfaces-broad-spectrum-infrared.html Optics & Photonics Wed, 16 Oct 2024 16:26:44 EDT news648314800