Optical techniques are experimental and analytical methods that exploit the generation, manipulation, and detection of electromagnetic radiation in the ultraviolet, visible, and infrared ranges to probe material properties, structures, and dynamics. They encompass approaches such as absorption, fluorescence, Raman and elastic scattering measurements, interferometry, and imaging modalities that rely on well-defined light–matter interactions. These techniques enable quantitative characterization of refractive indices, absorption coefficients, energy level structures, molecular conformations, and nanoscale morphology, often with high spatial and temporal resolution. Optical techniques are widely integrated with spectroscopy, microscopy, and metrology platforms and can be implemented in both far-field and near-field configurations.
ESA's double-spacecraft precision formation flying mission, Proba-3, is due to be launched from India on 4 December. The spacecraft pair will employ a set of positioning technologies to keep formation in space and this image ...
Space Exploration
Nov 22, 2024
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31
Researchers from Seoul National University College of Engineering announced they have developed an optical design technology that dramatically reduces the volume of cameras with a folded lens system utilizing "metasurfaces," ...
Optics & Photonics
Nov 20, 2024
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64
Close your eyes and picture the iconic "bullet time" scene from "The Matrix"—the one where Neo, played by Keanu Reeves, dodges bullets in slow motion. Now imagine being able to witness the same effect, but instead of speeding ...
Optics & Photonics
Nov 19, 2024
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363
Cooling atomic gases to the quantum regime often involves time-consuming steps. Electromagnetically induced transparency now achieves quantum degeneracy with high efficiency.
Quantum Physics
Nov 18, 2024
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136
In a recent study, researchers have developed a compound metalens that enables distortion-free imaging. The study, published in Engineering, presents a novel approach to on-demand distortion engineering using compound metalenses.
Optics & Photonics
Nov 15, 2024
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66
An experimental setup built at the Technion Faculty of Physics demonstrates the transfer of atoms from one place to another through quantum tunneling between optical tweezers. Led by Prof. Yoav Sagi and doctoral student Yanay ...
Quantum Physics
Nov 11, 2024
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120
In Nijmegen, Netherlands, researchers have installed the world's first microscope capable of live imaging of biological processes in such detail that moving protein complexes are visible. This new microscopic technique was ...
Bio & Medicine
Nov 11, 2024
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262
Researchers from Madrid explain a phenomenon that allows the direction of light emission to be controlled at the atomic scale. The paper provides a detailed explanation of how the profile of the light collected in a scanning ...
Nanophysics
Nov 5, 2024
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47
As buildings age, the demand for effective monitoring of their structural integrity has grown significantly. A breakthrough in nano-optical sensor technology now enables precise, real-time measurement of structural deformation ...
Nanomaterials
Nov 5, 2024
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53
Two-photon vision is a novel method with great potential for the future of ophthalmic diagnostics. Although it has many advantages, it requires improvement in key areas. International Centre for Eye Research (ICTER) scientists ...
Optics & Photonics
Nov 4, 2024
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