Round-trip imaging through scattering media based on optical transmission matrix

Zhuang, Bin; Cao, Xu; Geng, Yi; Zhao, Guangzhi; Chen, Hui; He, Zhengquan; Wu, Zhaoxin; Ren, Liyong

doi:10.3788/col201816.041102

Cited by 10 publications

(6 citation statements)

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“…This may be ascribed to the different resonant performance of absorption peaks. Also, it can be found that the influence of polarization angle to absorption performance in our designed absorber is less sensitive, which can be attributed to the symmetry of designed structure …”

Section: Multiband Metamaterials Absorbersmentioning

confidence: 84%

“…Also, it can be found that the influence of polarization angle to absorption performance in our designed absorber is less sensitive, which can be attributed to the symmetry of designed structure. [37][38][39][40][41][42] Next, to further increase bandwidth of absorption, the multiple magnetic-dipole plasmon resonance modes are applied using MDM sandwich structure with diamond array. As shown in Figure 6A, this kind of absorber consists of Ag substrate, Si-film, and the Ag-Si-Ag sandwich structure array.…”

Section: Multiband Metamaterials Absorbersmentioning

confidence: 99%

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Polarization‐independent multiband metamaterials absorber by fundamental cavity mode of multilayer microstructure

Fang

Peng

et al. 2019

Micro & Optical Tech Letters

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We propose a multiband metamaterial absorber consisting of silicon brick array on metal substrate in infrared range. Using the regular hexagon array of silicon bricks, the absorption rate can reach to 90% over the bandwidth of 100 nm, and four absorption peaks with the absorption rate of more than 98% can be obtained. The absorber is independent on polarization angle. The multiband absorption performance can be attributed to primary cavity mode and Mie resonance in silicon bricks. Importantly, when the all‐dielectric silicon bricks are replaced by metal‐dielectric‐metal sandwich structure, the absorption rate above 75% with the bandwidth of more than 200 nm in the absorber can be realized, and it is polarization‐insensitive. The absorption peaks are increased to obtain broadband absorption. Our designed sandwich microstructure can generate the resonance effect of magnetic dipole among coupled layers, leading to the characteristics of broadband absorption.

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Section: Multiband Metamaterials Absorbersmentioning

confidence: 84%

Section: Multiband Metamaterials Absorbersmentioning

confidence: 99%

Polarization‐independent multiband metamaterials absorber by fundamental cavity mode of multilayer microstructure

Fang

Peng

et al. 2019

Micro & Optical Tech Letters

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“…Then, a new kind of imaging configuration, named computational ghost imaging (CGI) [7,8], was introduced to acquire ghost images with only one detector without spatial resolution, which can effectively simplify the imaging setup and promote real applications of GI significantly. Recent studies have explored GI in the actual environment, such as turbulent atmosphere [9,10], scattering media [11][12][13], underwater environment [14,15], and so on.…”

Section: Introductionmentioning

confidence: 99%

Effect of uneven temperature distribution on underwater computational ghost imaging

et al. 2022

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The influence of uneven temperature distribution on imaging quality of computational ghost imaging (CGI) in the underwater environment is investigated experimentally. It is shown that as the water temperature increases, imaging quality presents a trend from deterioration to improvement. The results can be explained by the changes of the temperature difference between the upper and lower layers of underwater environment and laser spot travelling through the underwater environment. Moreover, the effect from different positions of the underwater environment with the same water temperature on CGI is also discussed.

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“…In 2010, Popoff et al [19][20][21] applied a spatial light modulator together with a full-field interference method to experimentally measure the monochromatic transmission matrix (TM) of a complex medium. They demonstrated that a multiple scattering medium can be considered as a compressive imaging device [22,23]. The limitation of this method is that it assumes that the scattering medium does not change.…”

Section: Introductionmentioning

confidence: 99%

Compressive Sensing Imaging Based on Modulation of Atmospheric Scattering Medium

Lei

Yang

et al. 2020

Applied Sciences

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Long-distance imaging in time-varying scattering media, such as atmosphere, is a significant challenge. Light is often heavily diffused while propagating through scattering media, because of which the clear imaging of objects concealed by media becomes difficult. In this study, instead of suppressing diffusion by multiple scattering, we used natural randomness of wave propagation through atmospheric scattering media as an optimal and instantaneous compressive imaging mechanism. A mathematical model of compressive imaging based on the modulation of atmospheric scattering media was established. By using the Monte Carlo method, the atmospheric modulation matrix was obtained, and the numerical simulation of modulation imaging of atmospheric scattering media was performed. Comparative experiments show that the atmospheric matrix can achieve the same modulation effect as the Hadamard and Gaussian random matrices. The effectiveness of the proposed optical imaging approach was demonstrated experimentally by loading the atmospheric measurement matrix onto a digital micromirror device to perform single pixel compressive sensing measurements. Our work provides a new direction to ongoing research in the field of imaging through scattering media.

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Round-trip imaging through scattering media based on optical transmission matrix

Cited by 10 publications

References 0 publications

Polarization‐independent multiband metamaterials absorber by fundamental cavity mode of multilayer microstructure

Polarization‐independent multiband metamaterials absorber by fundamental cavity mode of multilayer microstructure

Effect of uneven temperature distribution on underwater computational ghost imaging

Compressive Sensing Imaging Based on Modulation of Atmospheric Scattering Medium

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