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.
While taking snapshots with the high-speed electron camera at the Department of Energy's SLAC National Acceleratory Laboratory, researchers discovered new behavior in an ultrathin material that offers a promising approach ...
Nanophysics
Jul 10, 2024
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152
A new study in Opto-Electronic Advances discusses super-resolution machining of single crystalline sapphire by GHz burst mode femtosecond laser-induced plasma assisted ablation.
Optics & Photonics
Jul 8, 2024
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143
Gallium nitride (GaN)-based light-emitting diodes (LEDs) have transformed the lighting industry by replacing conventional lighting technologies with superior energy efficiency, longer operating life and greater environmental ...
Nanomaterials
Jul 8, 2024
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140
Multi-resonance thermally activated delayed fluorescence (MR-TADF) materials are promising candidates for organic light-emitting diodes (OLEDs) with narrow electroluminescence (EL) spectra. Scientists in China propose an ...
Optics & Photonics
Jul 8, 2024
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84
For hundreds of years, the clarity and magnification of microscopes were ultimately limited by the physical properties of their optical lenses. Microscope makers pushed those boundaries by making increasingly complicated ...
Optics & Photonics
Jun 28, 2024
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241
An international joint research team led by the Photonic Network Laboratory of Japan's National Institute of Information and Communications Technology (NICT) has demonstrated a record-breaking aggregate optical transmission ...
Optics & Photonics
Jun 26, 2024
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230
The human eye can only see light at certain frequencies (called the visible spectrum), the lowest of which constitutes red light. Infrared light, which we can't see, has an even lower frequency than red light. Researchers ...
Optics & Photonics
Jun 20, 2024
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198
A team of international scientists led by the University of Ottawa have gone back to the kitchen cupboard to create a recipe that combines organic material and light to create quantum states.
Optics & Photonics
Jun 20, 2024
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115
Photonic alloys, alloy-like materials combining two or more photonic crystals, are promising candidates for the development of structures that control the propagation of electromagnetic waves, also known as waveguides. Despite ...
Optical microscopes are indispensable research tools in fields such as life sciences, medical science, and materials science. The objective lens is the core component of the microscope, determining two key parameters of microscopic ...
Optics & Photonics
Jun 14, 2024
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