Three-Dimensional Incoherent Imaging Using Spiral Rotating Point Spread Functions Created by Double-Helix Beams [Invited]

被引：0

作者：

Vijayakumar Anand

Svetlana Khonina

Ravi Kumar

Nitin Dubey

Andra Naresh Kumar Reddy

Joseph Rosen

Saulius Juodkazis

机构：

[1] Swinburne University of Technology,Optical Sciences Center and ARC Training Centre in Surface Engineering for Advanced Materials (SEAM), School of Science, Computing and Engineering Technologies

[2] University of Tartu,Institute of Physics

[3] Samara National Research University,Image Processing Systems Institute—Branch of the Federal Scientific Research Centre

[4] “Crystallography and Photonics” of Russian Academy of Sciences,School of Electrical and Computer Engineering

[5] Ben-Gurion University of the Negev,Department of Physics of Complex Systems

[6] Hee Photonic Labs,Tokyo Tech World Research Hub Initiative (WRHI), School of Materials and Chemical Technology

[7] Weizmann Institute of Science,undefined

[8] Tokyo Institute of Technology,undefined

来源：

Nanoscale Research Letters | / 17卷

关键词：

Orbital angular momentum; Incoherent holography; Diffractive optics; Imaging; Microscopy;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In recent years, there has been a significant transformation in the field of incoherent imaging with new possibilities of compressing three-dimensional (3D) information into a two-dimensional intensity distribution without two-beam interference (TBI). Most incoherent 3D imagers without TBI are based on scattering by a random phase mask exhibiting sharp autocorrelation and low cross-correlation along the depth axis. Consequently, during reconstruction, high lateral and axial resolutions are obtained. Scattering based-Imaging requires a wasteful photon budget and is therefore precluded in many power-sensitive applications. This study develops a proof-of-concept 3D incoherent imaging method using a rotating point spread function termed 3D Incoherent Imaging with Spiral Beams (3DI2SB). The rotation speed of the point spread function (PSF) with displacement and the orbital angular momentum has been theoretically analyzed. The imaging characteristics of 3DI2SB were compared with a direct imaging system using a diffractive lens, and the proposed system exhibited a higher focal depth than the direct imaging system. Different computational reconstruction methods such as the Lucy–Richardson algorithm (LRA), non-linear reconstruction (NLR), and the Lucy–Richardson–Rosen algorithm (LRRA) were compared. While LRRA performed better than both LRA and NLR for an ideal case, NLR performed better than both under real experimental conditions. Both single plane imaging, as well as synthetic 3D imaging, were demonstrated. We believe that the proposed approach might cause a paradigm shift in the current state-of-the-art incoherent imaging, fluorescence microscopy, and astronomical imaging.

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