Optical materials and elements, considered as a physical system, comprise engineered media and components that manipulate electromagnetic radiation in the optical frequency range through controlled refraction, reflection, diffraction, absorption, and emission. This system includes bulk and nanostructured dielectrics, semiconductors, and metals configured as lenses, mirrors, prisms, gratings, filters, waveplates, and coatings, characterized by parameters such as complex refractive index, dispersion, nonlinear susceptibilities, and anisotropy. Their collective behavior determines wavefront shaping, spectral and polarization control, and spatiotemporal light propagation, underpinning the performance of optical assemblies in imaging, beam delivery, photonic integration, and laser systems.
At 4 degrees Kelvin, most electro-optic materials falter. Nanoelectronics R&D center imec has now successfully engineered thin-film strontium titanate (SrTiO₃) that delivers record electro-optic performance with low optical ...
Optics & Photonics
Nov 4, 2025
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A global team of experts from academia and industry has joined forces in a landmark Consensus Statement on next-generation photodetectors based on emerging light-responsive materials, which could accelerate innovative applications ...
Optics & Photonics
Nov 3, 2025
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34
Physicists at Umeå University, in collaboration with researchers in China, have developed a laser made entirely from biomaterials—birch leaves and peanut kernels. The environmentally friendly laser could become an inexpensive ...
Nanophysics
Nov 3, 2025
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89
In a new milestone for space-enabled semiconductor research, the University of Florida, in collaboration with NASA, MIT, Vanguard Automation, AIM Photonics and Germany's Fraunhofer Heinrich Hertz Institute, launched a suite ...
Space Exploration
Oct 28, 2025
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37
A research team affiliated with UNIST has developed a novel method to synthesize polymer-based particles that mimic the stunning iridescence of opal gemstones. This innovative approach employs nanostructured, porous microparticles ...
Nanomaterials
Oct 22, 2025
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44
Researchers have harnessed nonlocal artificial materials to create optical systems that emulate parallel spaces, wormholes, and multiple realities. A single material acts as two distinct optical media or devices simultaneously, ...
General Physics
Oct 21, 2025
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Metasurfaces are two-dimensional (2D), nanoengineered surfaces that interact strongly with electromagnetic waves and can control light with remarkable precision. These ultra-thin layers can be used to develop a wide range ...
A deep blue organic light-emitting diode (OLED) developed by researchers at Science Tokyo operates on just a single 1.5 V, overcoming the high-voltage and color-purity problems that have long limited blue OLEDs. The breakthrough ...
Optics & Photonics
Oct 14, 2025
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91
When optical materials (molecules or solid-state semiconductors) are embedded in tiny photonic boxes, known as optical microcavities, they form hybrid light-matter states known as polaritons. Most of the optical properties ...
Optics & Photonics
Oct 9, 2025
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178
Cornell researchers have built a programmable optical chip that can change the color of light by merging photons, without requiring a new chip for new colors.
Optics & Photonics
Oct 8, 2025
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122
