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.
AMOLF researchers, in collaboration with Delft University of Technology, have succeeded in bringing light waves to a halt by deforming the two-dimensional photonic crystal that contains them. The researchers show that even ...
Optics & Photonics
Apr 24, 2024
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Responding to the increasing demand for efficient, tunable optical materials capable of precise light modulation to create greater bandwidth in communication networks and advanced optical systems, a team of researchers at ...
Condensed Matter
Apr 22, 2024
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165
A team led by Prof. Dexin Ye and Prof. Hongsheng Chen from Zhejiang University, and Prof. Yu Luo from Nanyang Technological University conducted research on the practical implementation of full-parameter transformation optical ...
Optics & Photonics
Apr 22, 2024
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90
It has been known for centuries that light exhibits wave-like behavior in certain situations. Some materials are able to rotate the polarization, i.e. the direction of oscillation, of the light wave when the light passes ...
Condensed Matter
Apr 22, 2024
1
215
Over the past decade, metasurfaces deploying two-dimensional artificial nanostructures have emerged as a groundbreaking platform to manipulate light across various degrees of freedom. These metasurfaces exhibit significant ...
Optics & Photonics
Apr 16, 2024
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95
Exploring cavity quantum electrodynamics (cQED) is pivotal for advancing quantum technology and unraveling the fundamental intricacies of light-matter interactions. A prevalent strategy involves integrating a single quantum ...
Optics & Photonics
Apr 2, 2024
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92
Dielectric metasurfaces represent one of the cutting-edge research and application directions in optics. They not only possess the advantage of low loss but also enable the realization of device thicknesses at subwavelength ...
Optics & Photonics
Apr 1, 2024
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84
Perfect absorption arises from the strong interaction of valence electrons with light in a conducting material. Optical metamaterial is an effective approach to exploit the superior photon capture capability. Thus, the perfect ...
Optics & Photonics
Apr 1, 2024
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97
Versatility and miniaturization of imaging systems are of great importance in today's information society. Microscopic imaging techniques have always been indispensable for scientific research and disease diagnosis in the ...
Optics & Photonics
Mar 29, 2024
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143
Metalenses, nano-artificial structures capable of manipulating light, offer a technology that can significantly reduce the size and thickness of traditional optical components. Particularly effective in the near-infrared ...
Optics & Photonics
Mar 28, 2024
0
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