Single-shot compressed ultrafast photography at one hundred billion frames per second

Gao, Liang; Liang, Jinyang; Li, Chiye; Wang, Lihong V.

doi:10.1038/nature14005

Cited by 522 publications

(358 citation statements)

References 21 publications

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“…More prospectively, with the development and integration of cameras (e.g. ST AM P [19], CU P [20] or SP AD [21] cameras) or spatial encoding technologies that can operate at T Hz frame, our method offers possible perspectives to perform accurate single-shot measurement of any weak, unique and fast spatiotemporal phenomenon that will affect either the light source before transmission through a transparent or complex medium or the transmission of light through these media. Finally, the number of channels for multi-spectral temporal ghost imaging can be seriously improved by designing a CCD or CMOS array with a more complex Bayer-like filter placed in front of the pixels.…”

Section: Resultsmentioning

confidence: 99%

Computational temporal ghost imaging

Devaux¹,

Moreau²,

Denis³

et al. 2016

Optica

107

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Ghost imaging is a fascinating process, where light interacting with an object is recorded without resolution, but the shape of the object is nevertheless retrieved, thanks to quantum or classical correlations of this interacting light with either a computed or detected random signal. Recently, ghost imaging has been extended to a time object, by using several thousands copies of this periodic object. Here, we present a very simple device, inspired by computational ghost imaging, that allows the retrieval of a single non-reproducible, periodic or non-periodic, temporal signal. The reconstruction is performed by a single shot, spatially multiplexed, measurement of the spatial intensity correlations between computer-generated random images and the images, modulated by a temporal signal, recorded and summed on a chip CMOS camera used with no temporal resolution. Our device allows the reconstruction of either a single temporal signal with monochrome images or wavelength-multiplexed signals with color images.

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Section: Resultsmentioning

confidence: 99%

Computational temporal ghost imaging

Devaux¹,

Moreau²,

Denis³

et al. 2016

Optica

107

View full text Add to dashboard Cite

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“…Indeed, we should expect no possibility for discernible quantum gravitation within the cosmic envelope for two main reasons: Firstly, a quantum phenomenon is discernible only outside its envelope (see for instance the quantum photon envelope captured with the brilliant innovation of the Washington University team (Gao, 2014), G is measured within its envelope (r e(w) = 1.499 x 10 8 m). Secondly, quantum gravitation, if it existed, would be a ceaseless pulsating exchange of discrete packets; on galactic scale, this could spell disaster for the entire cosmic structural framework presumably similar to the effect of harmonic oscillation on inadequately secured structural members.…”

Section: Galileo's Gmentioning

confidence: 99%

Classical Definitions of Gravitation, Electricity and Magnetism

Obande¹

2015

APR

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In further demonstration of simultaneous existence of the atom as wave and particle, we reproduce values of a number of physical constants using the classical mass equation hϑ = mc 2 . Most, possibly all, physical constants are coefficients of linear correlations of parameters of the intrinsic electromagnetic (e-m) oscillation that defines the atom; for example: (i) angular frequency per unit radius ω/r correlates with rotational strain τ to produce the effect identified with atomic mass; (ii) the atomic waveform's e-m flux density ρ w correlates with its radius r w and with the field modulus ϵ w to produce the effect associated with Newtonian Gravitation G; (iii) universal (Galilean) gravitational acceleration g arises from correlations of (a) the particulate atom's centripetal force F p with its mass m p , (b) the material density ρ p with radius r p and (c) the field (i.e., waveform) modulus ϵ w with stress σ w ; (iv) the particulate atom's modulus correlates with its stress field to define the electric constant or permittivity; (v) the waveform (i.e., field) centripetal force F w correlates with strain τ w to give electron magnetic moment μ e and τ w correlates with ω/r to define electrostatic atomic mass unit amu/eV; (vi) the particulate atom's mass m p correlates with density ρ p to produce the effect associated with magnetic flux density B and (vii) a universal invariant waveform gravitational (centripetal) acceleration g = 7.9433 x 10 59 m s -2 kg -1 binds matter together on atomic, stellar, galactic and cosmic scales, it is identifiable with the strong nuclear force (SNF) suggesting that the SNF is not electromagnetic but mechanical. The investigation identifies centripetal force as the only causality of gravitation raising valid questions regarding possibility for quantum gravitation.

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“…1(a). In recent years, SLMs have found many exciting applications in microscopy, including ultrafast imaging [1], optical sectioning [2], photostimulation [3], quantitative phase imaging [4], adaptive imaging [5][6][7], among others.…”

Section: Introductionmentioning

confidence: 99%

Angular light modulator using optical blinds

et al. 2016

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Spatial light modulator (SLM) is widely used in imaging applications for modulating light intensity and phase delay. In this paper, we report a novel device concept termed angular light modulator (ALM). Different from the SLM, the reported ALM employs a tunable blind structure to modulate the angular components of the incoming light waves. For spatial-domain light modulation, the ALM can be directly placed in front of an image sensor for selecting different angular light components. In this case, we can sweep the slat angle of the blind structure and capture multiple images corresponding to different perspectives. These images can then be back-projected for 3D tomographic refocusing. By using a fixed slat angle, we can also convert the incident-angle information into intensity variations for wavefront sensing or introduce a translational shift to the defocused object for high-speed autofocusing. For Fourier-domain light modulation, the ALM can be placed at the pupil plane of an optical system for reinforcing the light propagating trajectories. We show that a pupil-plane-modulated system is able to achieve a better resolution for out-of-focus objects while maintaining the same resolution for in-focus objects. The reported ALM can be fabricated on the chip level and controlled by an external magnetic field. It may provide new insights for developing novel imaging and vision devices.

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Single-shot compressed ultrafast photography at one hundred billion frames per second

Cited by 522 publications

References 21 publications

Computational temporal ghost imaging

Computational temporal ghost imaging

Classical Definitions of Gravitation, Electricity and Magnetism

Angular light modulator using optical blinds

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