A review of high‐resolution microscopic ghost imaging with a low‐dose pseudothermal light

Abstract

High-resolution imaging is an important issue in various fields of scientific researches and engineering applications. Pseudothermal ghost imaging is one of the subfields of quantum imaging, providing new capabilities beyond conventional imaging methods. Also, it can provide a new viewpoint of imaging physical mechanisms. In this review, we explain the major ideas of pseudothermal ghost imaging, restricting the very important case of high-resolution imaging.We analyse the strategies which can significantly improve the image quality in pseudothermal ghost imaging. It may apply for merging it with common optical imaging methods in the extreme ultraviolet (XUV) or X-ray spectral regime for driving the applications to a wider audience in bioscience and nano-physics. K E Y W O R D Sghost imaging, microscopic, pseudothermal light, resolution Key points1. Ghost imaging, based on multiplexing, can help overcome specific kinds of noise. It can offer a way to alleviate the irreversible damage to the sample, because the object does not interact with the CCD camera. 2. Pseudothermal light sources have a substantially higher flux, so the performance of the pseudothermal ghost imaging system can exceed those based upon parametric down-conversion sources.3. XUV and X-ray radiography are invaluable tools for the analysis of biological samples and in nano-physics. The pseudothermal ghost imaging can easily be transferred into the XUV and X-ray regime without a lens, whereas parametric down-conversion is restricted to the visible and infrared range. 4. The main drawbacks of pseudothermal ghost imaging are longer acquisition times and the large number of measurements required for image recovery. At present, the resolution of microscopic ghost imaging has never reached the level of traditional microscopic imaging.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Optimal hadamard single-pixel imaging based on fourier spectrum of pattern

“…As a new imaging method, single-pixel imaging (or computational ghost imaging) has received extensive attention in recent years benefiting from its unique working principle. At present, single-pixel imaging has been effectively developed in many fields, such as microscopic imaging [1,2], special band imaging [3][4][5], multispectral imaging [6][7][8], remote sensing [9,10] and optical encryption [11,12], etc.…”

Visualizing the Hardy's Paradox using Hyper‐Entanglement‐Assisted Ghost Imaging

“…[ 17 ] The technique of high‐resolution microscopic ghost imaging with a low‐dose pseudothermal light provided a new viewpoint of imaging physical mechanisms. [ 18 ] Combing the deep‐learning methods into quantum ghost imaging, one could realize time‐efficient object recognition. [ 19 ] However, almost all of the above‐mentioned quantum imaging techniques only utilized a single photonic degree of freedom.…”

Improvements of Computational Ghost Imaging by Using Sequenced Speckle

“…The pioneering GI experiments utilized quantum-entangled photons generated through spontaneous parametric downconversion and reconstructed object images through spatial quantum correlations after point-by-point scanning [1]. Subsequently, GI has been demonstrated with thermal [2][3][4][5] and pseudo-thermal light based on random patterns [6,7], allowing for the exploration of GI in the classical domain with intensity correlations. While quantum GI generally exhibits superior image quality, its application is limited by the available wavelength range [8][9][10].…”