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Optics & Photonics news
Projection mapping leaves the darkness behind
Images projected onto objects in the real world create impressive displays that educate and entertain. However, current projection mapping systems all have one common limitation: they only work well in the dark. In a study ...
Optics & Photonics
15 hours ago
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Holographic message encoded in simple plastic
There are many ways to store data—digitally, on a hard disk, or using analog storage technology, for example as a hologram. In most cases, it is technically quite complicated to create a hologram: High-precision laser technology ...
Optics & Photonics
16 hours ago
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Direct laser writing on halide perovskites: From mechanisms to applications
Metal halide perovskites have become well-deserved "star" materials among a variety of semiconductors owing to their excellent optoelectronic properties, such as high photoluminescence (PL) quantum yield (QY), high absorption ...
Optics & Photonics
Mar 15, 2024
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Chiral transmission by an open evolution trajectory in a non-Hermitian system
In non-Hermitian systems, two or more eigenvalues and eigenstates of a resonant system coalesce at Exceptional points (EPs). Dynamic encircling of EPs has received significant interest in recent years, as it leads to highly ...
Optics & Photonics
Mar 15, 2024
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Ultra-flat optics for broadband thermal imaging
Long-wavelength infrared (LWIR) imaging holds critical significance across many applications, from consumer electronics to defense and national security. It finds applications in night vision, remote sensing, and long-range ...
Optics & Photonics
Mar 15, 2024
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Researchers develop a new strategy to enhance blue perovskite LED performance
Prof. Cui Linsong's research team from the University of Science and Technology of China (USTC), cooperating with Prof. Samuel D. Stranks' team from the University of Cambridge, devised a novel strategy to enhance the performance ...
Optics & Photonics
Mar 15, 2024
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Brighter, cheaper blue light could revolutionize screen technology
Researchers have found a new way to simplify the structure of high-efficiency blue organic light-emitting diodes (OLEDs), which could lead to longer-lasting and higher definition television screens.
Condensed Matter
Mar 15, 2024
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New excitation method of stimulated Raman scattering achieves natural-linewidth-limit spectral lines
Stimulated Raman Scattering (SRS) has been developed as an essential quantitative contrast for chemical imaging in recent years. However, the spectral resolution of the mainstream SRS modalities is always lower than the state-of-the-art ...
Optics & Photonics
Mar 15, 2024
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Researchers prove fundamental limits of electromagnetic energy absorption
Electrical engineers at Duke University have determined the theoretical fundamental limit for how much electromagnetic energy a transparent material with a given thickness can absorb. The finding will help engineers optimize ...
Optics & Photonics
Mar 14, 2024
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Researchers develop a new type of frequency comb that promises to further boost the accuracy of timekeeping
Chip-based devices known as frequency combs, which measure the frequency of light waves with unparalleled precision, have revolutionized timekeeping, the detection of planets outside of our solar system and high-speed optical ...
Optics & Photonics
Mar 14, 2024
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Quantum dance to the beat of a drum: Researchers observe how energy of single electron is tuned by surrounding atoms
Physicists at the University of Regensburg have choreographed the shift of a quantized electronic energy level with atomic oscillations faster than a trillionth of a second.
Optics & Photonics
Mar 14, 2024
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How to upcycle low-energy light: A new design for highly efficient conversion materials
To combine two low-energy photons into one high-energy photon efficiently, the energy must be able to hop freely, but not too quickly, between randomly oriented molecules of a solid. This Kobe University discovery provides ...
Condensed Matter
Mar 13, 2024
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Researchers achieve quantum key distribution for cybersecurity in novel experiment
Researchers at the Department of Energy's Oak Ridge National Laboratory have demonstrated that advanced quantum-based cybersecurity can be realized in a deployed fiber link.
Optics & Photonics
Mar 13, 2024
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Researchers generate super-fast electrons with table-top laser systems
In massive particle accelerators, sub-atomic particles (like electrons) are sped up to super-high speeds comparable to the speed of light towards a target surface. The collision of accelerated sub-atomic particles gives rise ...
Optics & Photonics
Mar 13, 2024
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Polarization-sensitive tomography made easy with tensorial tomographic Fourier ptychography
In the realm of medical imaging, there are quite a few different techniques to extract information from biological tissue based on its different interactions with visible light. Over the past decade, there has been a massive ...
Optics & Photonics
Mar 13, 2024
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Team achieves successful mass production of metalenses designed for application in the ultraviolet region
Ultraviolet rays find diverse applications in medical and health care, serving purposes such as disinfection, sterilization, and therapy. They are also used in the semiconductor industry for creating microcircuits and patterns.
Optics & Photonics
Mar 12, 2024
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Novel method for controlling light polarization uses liquid crystals to create holograms
Researchers have made a significant breakthrough in controlling the polarization of light, a crucial property for various applications such as augmented reality, data storage, and encryption.
Optics & Photonics
Mar 11, 2024
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New type of tunable filter reveals the potential for terahertz wireless communications
Electromagnetic waves in the terahertz frequency range offer many advantages for communications and advanced applications in scanning and imaging, but realizing their potential poses challenges. Researchers at Tohoku University ...
Optics & Photonics
Mar 11, 2024
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A project to build a new synchrotron in the Greater Caribbean
Researchers from the Universitat Politècnica de València (UPV), the Universidad Autónoma de México (UNAM), and the Centro Internacional de Física de Bogotá are working on a project to build a new synchrotron in the ...
General Physics
Mar 11, 2024
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Quantum imaging could create bright future for advanced microscopes
The unique properties of quantum physics could help solve a longstanding problem that prevents microscopes from producing sharper images at the smallest scales, researchers say.
Optics & Photonics
Mar 8, 2024
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