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.
Lenses are used to bend and focus light. Normal lenses rely on their curved shape to achieve this effect, but physicists from the University of Amsterdam and Stanford University have made a flat lens of only three atoms thick ...
Nanophysics
May 30, 2024
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286
A research group led by Prof. Sun Dunlu from Hefei Institutes of Physical Science (HFIPS), Chinese Academy of Sciences, has successfully synthesized novel mid-infrared Ho,Pr:YAP and Er:YGGAG crystals using the Czchralski ...
Optics & Photonics
May 30, 2024
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96
Organic light-emitting diodes (OLEDs) have become a leading display technology. The luminescent material is a core component of OLEDs. Thermally activated delayed fluorescence (TADF) materials have emerged as promising emitters ...
Condensed Matter
May 28, 2024
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110
New work by researchers from the ARC Center of Excellence for Transformative Meta-Optical Systems (TMOS) and City University of New York (CUNY) published May 27 in Nature Communications realizes a new, tunable edge-detecting ...
Nanophysics
May 28, 2024
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96
Double-sided microlens arrays (DSMLAs) play a crucial role in improving the performance of optical devices, supporting applications from advanced imaging systems to laser beam homogenization. However, traditional manufacturing ...
Optics & Photonics
May 23, 2024
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103
Organic light-emitting diodes (OLED) have emerged as a new generation of display technology. Organic crystalline materials possess superior thermal stability, chemical stability, and high carrier mobility, making them an ...
Condensed Matter
May 21, 2024
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100
Polarized light waves spin clockwise or counterclockwise as they travel, with one direction behaving differently than the other as it interacts with molecules. This directionality, called chirality or handedness, could provide ...
Nanophysics
May 21, 2024
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143
A research team collaborated to identify the principle of an eco-friendly energy-based soft mechanoluminescent complex that emits light without batteries. It is expected to be applied in various fields, such as optical sensors, ...
Nanomaterials
May 20, 2024
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85
Quantum information science is truly fascinating—pairs of tiny particles can be entangled such that an operation on either one will affect them both even if they are physically separated. A seemingly magical process called ...
Optics & Photonics
May 20, 2024
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175
Photonic computing, storage, and communication are the foundation for future photonic chips and all-optical neural networks. Nanoscale plasmons, with their ultrafast response speed and ultrasmall mode volume, play an important ...
Nanophysics
May 17, 2024
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72
