Wide Field-of-View Imaging With Wavefront Coded Diffractive Photon Sieves

Zhao, Xiaonan; Hu, Jingpei; Xu, Feng; Zhu, Aijiao; Wang, Chinhua

doi:10.1109/jphot.2016.2620808

Cited by 3 publications

(3 citation statements)

References 21 publications

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“…Besides, Zhao et al also found that the wavefront coding technology can help the incident light in different FOVs gain equal focusing power. [12] Here, instead of inserting any auxiliary elements into the optical system, a cubic term is introduced into the phase function of CDL in our design to eliminate the chromatic and off-axis aberration, which can also avoid huge computation cost of optimization and enable the design of large aperture DL. In the wavefront coding system, the occupied energy of the triangled PSF area is about 100% of that of the image plane, [19] hence the proposed PCDL can achieve high focusing efficiency.…”

Section: Theory Of Phase-coded DLmentioning

confidence: 99%

“…The experimental results show that the working bandwidth of the wavefront coded photon sieve reaches 28 nm at the central wavelength of 632.8 nm. In the same year, Zhao et al [12] also found that a wide FOV imaging with a photon sieve can be achieved by coding the positions of pinholes of the photon sieve. The experimental results show that the FOV of the phase-coded photon sieve reaches ±4 • .…”

Section: Introductionmentioning

confidence: 99%

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Large aperture phase-coded diffractive lens for achromatic and 16° field-of-view imaging with high efficiency

Ma¹,

Zheng²,

Hu³

et al. 2022

Chinese Phys. B

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Diffractive lenses (DLs) can realize high-resolution imaging with lightweight and compact size. Conventional DLs suffer from large chromatic and off-axis aberration, which significantly limits their practical application. Although many achromatic methods have been proposed, most of them are for small aperture DL and the diffraction efficiency is low. In the design of diffractive achromatic lenses, increasing the aperture and improving the diffraction efficiency have become two of the most important design issues. Here, a novel phase-coded diffractive lens (PCDL) for achromatic imaging with a large aperture and high efficiency is proposed and demonstrated experimentally, which has wide field-of-view (FOV) imaging at the same time. The phase distribution of the conventional phase-type DL is coded with a cubic function to both expand the working bandwidth and FOV of conventional DL. Fabrication of the proposed phase-type DL was performed using the laser direct writing of grey-scale patterns for a PCDL of a diameter of 10 mm, a focal length of 100 mm, and a cubic phase coding parameter of 30π. Experimental results show that the working bandwidth and the FOV of the PCDL reach 50 nm and 16° with over 80% focusing efficiency, which are in significant contrast to the conventional DL and good agreement with the theoretical predictions. This work provides a novel way for achromatic, wide FOV, and high-efficiency imaging with large aperture DL.

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Section: Theory Of Phase-coded DLmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Large aperture phase-coded diffractive lens for achromatic and 16° field-of-view imaging with high efficiency

Ma¹,

Zheng²,

Hu³

et al. 2022

Chinese Phys. B

Self Cite

View full text Add to dashboard Cite

show abstract

“…In fact, due to its small size, light weight and flexible design, the photon sieve has seen great development since it was invented [13][14][15][16]. So far, a large number of diffractive optical elements based on this type of multi-micropore structure have emerged, such as flat helical nanosieves [17] and ultrahighcapacity non-periodic photon sieves [18].…”

Section: Introductionmentioning

confidence: 99%

Spiral Photon Sieves Apodized by a Bessel-Like Window

Yu¹,

Xiao²,

Yi³

et al. 2017

PIER C

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Abstract-In order to improve the focusing and imaging effects of conventional spiral zone plates (SZPs), we design a new type of spiral photon sieve (SPSs) apodized by a robust Bessel-like window. The design principle and numerical simulation results show that the Bessel-like window has a better modulation effect on the main lobe compression and side suppression of the point spread function (PSF) than other traditional window. Taking advantage of the robustness of Bessel-like windows, the proposed SPS can achieve a higher spatial resolution and lower side lobe noise than the conventional SPS and SZP. The practical effects have also been demonstrated by image experiments on the micropore. Our work may find some potential applications in laser alignment, optical trapping, optical communication and edge enhancement imaging fields.

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Analytical and numerical fresnel models of phase diffractive optical elements for imaging applications

Ünal

2024

Opt Quant Electron

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Wide Field-of-View Imaging With Wavefront Coded Diffractive Photon Sieves

Cited by 3 publications

References 21 publications

Large aperture phase-coded diffractive lens for achromatic and 16° field-of-view imaging with high efficiency

Large aperture phase-coded diffractive lens for achromatic and 16° field-of-view imaging with high efficiency

Spiral Photon Sieves Apodized by a Bessel-Like Window

Analytical and numerical fresnel models of phase diffractive optical elements for imaging applications

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