Microplastics—plastics particles smaller than 5 mm in size—have caused an environmental pollution issue that cannot be ignored by our society. Raman spectroscopy technology, with its non-contact, non-destructive and chemical-specific ...
Optics & Photonics
Aug 22, 2023
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A recent study affiliated with UNIST has introduced an effective method of restoring images distorted by fog. According to the research team, their method can also provide a breakthrough by exploiting the random fluctuations ...
Optics & Photonics
Mar 7, 2023
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7
Toward the end of the 19th century, Abbe and Rayleigh formulated the principles of optical diffraction that limits the resolution of optical instruments in the far-field where the distance between the target and the optical ...
Optics & Photonics
Dec 9, 2022
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2
Recent progress in the fabrication of nanostructures has led to their application in several fields, including biomedicine, chemistry, materials engineering, and environmental remediation.
Optics & Photonics
Nov 2, 2022
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34
One of the central predictions of general relativity is that a massive object such as a star, galaxy, or black hole can deflect light passing nearby. This means that light from distant objects can be gravitationally lensed ...
Astronomy
Oct 10, 2022
2
171
Bound states in the continuum (BICs) are a special class of resonant states. Although they have the same momentum and energy as the propagating modes in free space, they are not coupled to the latter and thus have infinite ...
Optics & Photonics
Jun 2, 2022
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4
The diffraction limit, also known as the Abbe diffraction limit in optics, poses a great challenge in many systems that involve wave dynamics, such as imaging, astronomy, and photolithography. For example, the best optical ...
Optics & Photonics
Apr 5, 2021
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14
Researchers at ARCNL and Vrije Universiteit Amsterdam have developed a compact setup for fast, super-resolution microscopy through an ultrathin fiber. Using smart signal processing, they beat the theoretical limits of resolution ...
Optics & Photonics
May 8, 2020
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65
Medical researchers face a hurdle when studying cells under an optical microscope—the laws of physics. Obtaining an image of anything below a certain size is complicated; optical apertures and the wavelength of visible ...
Optics & Photonics
May 7, 2020
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7
Researchers described a new strategy of designing metamolecules that incorporates two independently controllable subwavelength meta-atoms. This two-parametric control of the metamolecule secures the complete control of both ...
Nanophysics
Feb 20, 2020
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