Average intensity of M × N Gaussian array beams in oceanic turbulence

Lu, Lu; Wang, Zhiqiang; Zhang, Jinghui; Zhang, Pengfei; Qiao, Chunhong; Fan, Chengyu; Ji, Xiaoling

doi:10.1364/ao.54.007500

Cited by 41 publications

(18 citation statements)

References 24 publications

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“…In the synthesized samples, graphene oxide has a good adsorption capacity for methyl orange dye due to its rich active sites. 54 Further, on the basis of the optimal degradation of 25TB, different contents of GO were compounded to prepare 25TB@YG (Y = 1, 1/2, 1/4, 1/8, designated as 1/100,1/200,1/400,1/800 mass ratio, respectively), to explore the best GO compound amount (Figure 3b). It is clear that after compounding GO, the degradation efficiency of the photocatalyst for MO is rapidly improved (Figure S6), especially for the optimal GO doped 25TB@1/ 4G heterojunction, which can achieve a 91.05% MO removal rate in 12 min.…”

Section: Resultssupporting

confidence: 66%

Efficient Doping Induced by Charge Transfer at the Hetero-Interface to Enhance Photocatalytic Performance

Zhang

Wang

Cao

et al. 2023

ACS Appl. Mater. Interfaces

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The construction of heterojunction photocatalysts is an effective method to improve photocatalytic efficiency since the potential gradient and built-in electron field established at the junction could enhance the efficiency of charge separation and interfacial charge transfer. Nevertheless, heterojunction photocatalysts with strong built-in electron fields remain difficult to build since the two adjacent constitutes must be satisfied with an appropriate band alignment, redox potential, and carrier concentration gradient. Here, an efficient charge transfer-induced doping strategy is proposed to enhance the heterojunction built-in electron field for stable and efficient photocatalytic performance. Carrier transfer tests show that the rectification ratio of the n-TiO2–X /n-BiOI heterojunction is significantly enhanced after being coated with graphene oxide (GO). Consequently, both the hydrogen production and photodegradation performance of the GO composite heterojunction are considerably enhanced compared with pure TiO2–X , BiOI, and n-TiO2–X /n-BiOI. This work provides a facile method to prepare heterojunction photocatalysts with a high catalytic activity.

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Section: Resultssupporting

confidence: 66%

Efficient Doping Induced by Charge Transfer at the Hetero-Interface to Enhance Photocatalytic Performance

Zhang

Wang

Cao

et al. 2023

ACS Appl. Mater. Interfaces

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“…Specifically, the spatial power spectrum is used to characterize the intensity of refractive index fluctuation. After Nikishov's expansion 26 under oceanic conditions, the expression is:…”

Section: Turbulencementioning

confidence: 99%

Extended model for environmental interaction in underwater ghost imaging

Yue

Cheng

Hao

2023

AOPC 2022: Optical Sensing, Imaging, and Display Technology

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Over the past several years, ghost imaging has made remarkable achievements in poor optical conditions, including underwater imaging works. This study describes the interactions between environmental interference and experimental results of ghost imaging applied to underwater scenarios deduced by mathematical processes and related researches findings. In this paper, the causes of notable optical influences: absorption, scattering, and turbulence are firstly presented in the form of statistical mathematics; Sequentially, at the level of complex amplitude in wave optics, the experimental principle: second-order correlation are calculated as a basic for subsequent discussion in physical illustration; further, mainly from existing researches, the text expounds the specific influence of environmental and experimental factors on the imaging quality with above-mentioned models.

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“…With the development of wireless optical communication and laser radar, the evolutions of laser beams in atmospheric turbulence were widely studied in past years [1]. In past years, the properties of fully coherent laser beams in turbulence have been widely analyzed, such as Gaussian beams [2], Hermite-Gaussian beam [3], Pearcey-Gaussian beam [4], beam array [5][6][7], Laguerre-Gaussian beam [8], Airy beam [9], hollow beam [10,11], vortex beam [12,13], and vortex lattices [14]. From previous studies [1], one can see that partially coherent beams are resistance to the deleterious effects of turbulence.…”

Section: Introductionmentioning

confidence: 99%

Intensity and Coherence Characteristics of a Radial Phase-Locked Multi-Gaussian Schell-Model Vortex Beam Array in Atmospheric Turbulence

Zhao

Wang

et al. 2020

Photonics

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The theoretical descriptions for a radial phase-locked multi-Gaussian Schell-model vortex (RPLMGSMV) beam array is first given. The normalized intensity and coherence distributions of a RPLMGSMV beam array propagating in free space and atmospheric turbulence are illustrated and analyzed. The results show that a RPLMGSMV beam array with larger total number N or smaller coherence length σ can evolve into a beam with better flatness when the beam array translating into the flat-topped profile at longer distance z and the flatness of the flat-topped intensity distribution can be destroyed by the atmospheric turbulence at longer distance z. The coherence distribution of a RPLMGSMV beam array in atmospheric turbulence at the longer distance will have Gaussian distribution. The research results will be useful in free space optical communication using a RPLMGSMV beam array.

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Average intensity of M × N Gaussian array beams in oceanic turbulence

Cited by 41 publications

References 24 publications

Efficient Doping Induced by Charge Transfer at the Hetero-Interface to Enhance Photocatalytic Performance

Efficient Doping Induced by Charge Transfer at the Hetero-Interface to Enhance Photocatalytic Performance

Extended model for environmental interaction in underwater ghost imaging

Intensity and Coherence Characteristics of a Radial Phase-Locked Multi-Gaussian Schell-Model Vortex Beam Array in Atmospheric Turbulence

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