Results 21 to 30 of about 3,379 (252)
Actively tunable and reconfigurable wavefront shaping by optical metasurfaces poses a significant technical challenge often requiring unconventional materials engineering and nanofabrication.
Malek Stephanie C. +3 more
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Nonlinear wavefront shaping with optically induced three-dimensional nonlinear photonic crystals
Generation of light with desirable amplitude and phase profiles with nonlinear wavefront shaping is important for optical technologies. Here, the authors demonstrate nonlinear wavefront shaping with three-dimensional nonlinear photonic crystals formed by
Shan Liu +7 more
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Wavefront shaping through emulated curved space in waveguide settings
Wavefront shaping is typically carried out outside the medium within which the beam is propagating. Sheng et al.exploit concepts inspired by General Relativity for wavefront shaping within optical waveguide settings, constructing narrow collimated beams ...
Chong Sheng +4 more
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Artificial intelligence-assisted light control and computational imaging through scattering media [PDF]
Coherent optical control within or through scattering media via wavefront shaping has seen broad applications since its invention around 2007. Wavefront shaping is aimed at overcoming the strong scattering, featured by random interference, namely speckle
Shengfu Cheng +4 more
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Mesoscopic theory of optical wavefront shaping to focus deep inside opaque media [PDF]
We describe the theory of optical wavefront shaping, where waves are focused to a predefined focal point deep inside a disordered three-dimensional (3D) opaque medium (e.g., tissue, paint, foam) by shaping the wavefield sent by N external array elements.
van Tiggelen Bart A. +2 more
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Optical Cryptanalysis Method Using Wavefront Shaping
Optical techniques for information security have drawn a lot of attention in recent years. The development of cryptanalysis strategies will also have a positive promotion for the cryptosystems themselves.
Meihua Liao +3 more
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High quality factor metasurfaces for two-dimensional wavefront manipulation
The strong interaction of light with micro- and nanostructures plays a critical role in optical sensing, nonlinear optics, active optical devices, and quantum optics.
Claudio U. Hail +4 more
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Depth sensitive optical spectroscopy preferentially detects optical spectra from different depths in layered samples, which plays a crucial role in many applications such as the optical diagnosis of epithelial precancer and cancer.
Chao-Mao Hsieh, Manish Verma, Quan Liu
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A general method for the in-situ isotropic microtomography of freestanding specimens, exploiting complex wavefront shaping and optical tweezers.
Moosung Lee +3 more
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Transmission matrix can be used as an elegant tool to represent the light transmission characteristics of a scattering medium. In this paper, we propose a novel common path interferometer technique to measure the transmission matrix utilizing the ...
Han Gao +4 more
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