Tilted wavefront coding system to eliminate the retroreflection with superior imaging property: publisher’s note

Wang, Lei; Ye, Qing; Nie, Jinsong; Sun, Xueliang

doi:10.1364/ao.396025

Cited by 2 publications

(8 citation statements)

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“…As shown in Figure 4, the echo-detector receiving power is significantly reduced in a conventional imaging system and wavefront coded imaging system with the increase in the system defocus parameter [16]. Under the same defocus parameters, while the size of the far-field cat-eye echo from the wavefront coded imaging system is slightly larger than that of the conventional imaging system, its echo detector receiving power is lower than that of the conventional imaging system.…”

Section: Simulations and Resultsmentioning

confidence: 96%

“…In comparison with that, Figure 3d,e shows the intermediate coded image and final decoded image obtained through the wavefront coding system, respectively, whose cubic phase plate at the pupil position will produce an intermediate coding image insensitive to defocus, and therefore is uniformly blurred. A clear decoded image can be obtained by inverse filtering the intermediate encoded image [16].…”

Section: Simulations and Resultsmentioning

confidence: 99%

“…Wavefront coding imaging is one type of computational imaging technology, which can achieve quasi-real-time and high-quality imaging along with a wide range of defocus [14,15]. According to previous research [14,16], the cubic phase plate can extend the depth of field of the wavefront coding imaging. This paper proposes a novel anti-cat-eye effect imaging technique based on cubic phase plate wavefront coding and proves the superior retroreflection reduction and good imaging quality property of wavefront coding imaging through simulations and experiment.…”

Section: Introductionmentioning

confidence: 99%

“…where P1 (x,y) is the generalized pupil function [14,16]; α is the phase modulation coefficient; W20 is the defocus parameter with the wavelength unit λ The amplitude distribution of the beam on the surface of the imaging lens L 1 can be written as follows [17,18]…”

mentioning

confidence: 99%

“…where P 1 (x,y) is the generalized pupil function [14,16]; α is the phase modulation coefficient; W 20 is the defocus parameter with the wavelength unit λ…”

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confidence: 99%

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A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System

et al. 2021

Crystals

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A novel anti-cat-eye effect imaging technique based on wavefront coding is proposed as a solution to the problem of previous anti-cat-eye effect imaging techniques where imaging quality was sacrificed to reduce the retroreflection from the photoelectric imaging equipment. With the application of the Fresnel–Kirchhoff diffraction theory, and the definition of generalized pupil function combining both phase modulation and defocus factors, the cat-eye echo formation of the wavefront coded imaging system is theoretically modeled. Based on the physical model, the diffracted spot profile distribution and the light intensity distribution on the observation plane are further simulated with the changes in the defocus parameter and the phase modulation coefficient. A verification test on the cat-eye laser echo power of the wavefront coded imaging system and that of the conventional imaging system at a 20 m distance are conducted, respectively. Simulations and experiment results show that compared with conventional imaging systems, the wavefront coding imaging system can reduce the retroreflection echo by two orders of magnitude while maintaining better imaging quality through defocusing.

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Section: Simulations and Resultsmentioning

confidence: 96%

Section: Simulations and Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

“…where P 1 (x,y) is the generalized pupil function [14,16]; α is the phase modulation coefficient; W 20 is the defocus parameter with the wavelength unit λ…”

mentioning

confidence: 99%

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A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System

et al. 2021

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Experimental damage thresholds of a laser suppression imaging system using a cubic phase plate

Zhang

et al. 2023

中国光学快报

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The development of laser systems leads to an increasing threat to photoelectric imaging sensors. A cubic phase plate wavefront coding imaging system is proposed to reduce the risk of damage owing to intense laser radiation. Based on the wavefront coding imaging model, the diffracted spot profile and the light intensity distribution on the observation plane are simulated. An experimental device is set up to measure the laser-induced damage thresholds and investigate the morphology of laser-induced damage patterns of the conventional and the wavefront encoding imaging system. Simulations and experimental results manifest the superior laser suppression performance of the proposed method, which can help diminish the undesirable effects of laser irradiation on an imaging sensor.

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Tilted wavefront coding system to eliminate the retroreflection with superior imaging property: publisher’s note

Abstract: This publisher’s note corrects information in the author affiliations in Appl. Opt. 58, 7205 (2019).APOPAI0003-693510.1364/AO.58.007205

Cited by 2 publications

References 1 publication

A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System

A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System

Experimental damage thresholds of a laser suppression imaging system using a cubic phase plate

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