Results 61 to 70 of about 3,457 (218)
Adaptive Generation and Diagnostics of Linear Few-Cycle Light Bullets
Applied Sciences, 2013 Recently we introduced the class of highly localized wavepackets (HLWs) as a generalization of optical Bessel-like needle beams. Here we report on the progress in this field.
Martin Bock, Ruediger Grunwald
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JPhys Photonics, 2023 Finding appropriate strategies to increase the robustness through turbulence with extended depth of focus (DOF) is a common requirement in developing high-resolution imaging through air or water media.
Yiqian Yang, Xingwang Kang, Liangcai Cao
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Electro-Optical Modulation in High Q Metasurface Enhanced with Liquid Crystal Integration
Nanomaterials, 2022 Electro-optical tuning metasurfaces are particularly attractive since they open up routes for dynamic reconfiguration. The electro-optic (EO) modulation strength essentially depends on the sensitivity to the EO-induced refractive index changes.
Ruoying Kanyang +6 more
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Focusing light through scattering media by polarization modulation based generalized digital optical phase conjugation [PDF]
, 2017 Optical scattering prevents light from being focused through thick biological tissue at depths greater than ∼1 mm. To break this optical diffusion limit, digital optical phase conjugation (DOPC) based wavefront shaping techniques are being actively ...
Hemphill, Ashton S. +4 more
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Photon‐Sphere Modes in Curved Optical Microcavities: A Black‐Hole Analogue Laser
Advanced Science, EarlyView.An optical analogue of a Schwarzschild black hole is realized using curved microcavities that preserve light‐like geodesics. A new family of laser modes confined around the photon sphere is identified alongside conventional whispering‐gallery modes. Analytical theory, numerical simulations, and experiments reveal curvature‐induced confinement, enabling
Chenni Xu +9 more
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Ultrashort Vortex Pulses with Controlled Spectral Gouy Rotation
Applied Sciences, 2020 Recently, the spatio-spectral propagation dynamic of ultrashort-pulsed vortex beams was demonstrated by 2D mapping of spectral moments. The rotation of characteristic anomalies, so-called “spectral eyes”, was explained by wavelength-dependent Gouy phase ...
Max Liebmann +4 more
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Micromachines, 2022 Controlling the phase of light with a high efficiency and precision is essential for applications in imaging, tunable devices, and optical systems. Spatial light modulators (SLMs) based on liquid crystals (LCs) have been regarded as one of the best ...
Andrey Manko +5 more
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High Precision Optical Wavefront Generation Using Liquid Crystal Spatial Light Modulator (LC-SLM)
, 2022 LC-SLM provides a flexible way to modulate the phase of light with the help of a grayscale pattern loaded on it. Nevertheless, the modulated phase profile is of relatively low accuracy due to the nonlinear and nonuniform response of the liquid crystal layer in the SLM.
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Advanced Science, EarlyView.A data‐driven strategy integrating quantum machine learning (QML) and high‐throughput computing overcomes hot‐cracking limitation to design a novel lightweight aluminum‐based entropy alloy for additive manufacturing. The fabrication transforms brittle intermetallics into deformable hierarchical nanostructures, yielding ultrastrong strength (>1 GPa) and
Enmao Wang +6 more
wiley +1 more source
Large viewing angle holographic 3D display system based on maximum diffraction modulation
Light: Advanced Manufacturing, 2023 An ideal holographic 3D display should have the characteristics of large viewing angle, full color, and low speckle noise. However, the viewing angle of the holographic 3D display is usually limited by existing strategies, which vastly hinders its ...
Di Wang +7 more
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