Tabletop x-ray ghost imaging with ultra-low radiation

Zhang, Ai-Xin; He, Yuhang; Wu, Ling‐An; Chen, Liming; Wang, Bingbing

doi:10.1364/optica.5.000374

Cited by 280 publications

(182 citation statements)

References 32 publications

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“…In situ polymerization is one of the most recent methods and the most promising method to fabricate CNC/ polymer nanocomposites. Bionanocomposites based on PCL [227] and Poly(butylene succinate) [228] were successfully grafted onto CNC by in situ polymerization.…”

Section: Processing Of Cnc Nanocompositesmentioning

confidence: 99%

Functionalized cellulose nanocrystals as reinforcement in biodegradable polymer nanocomposites

et al. 2017

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This review describes the use of cellulose nanocrystals (CNC) as fillers in biodegradable polymer matrices over the past few years. The preparation and characterization of CNC‐based nanocomposites are highlighted here with a focus on thermophysical and mechanical properties. The characterization and isolation of nanocellulose from different raw material sources are discussed in detail, as well as different surface modifications. The addition of CNC in biodegradable polymer, combined with nanocellulose surface engineering and driven by sustainability trends, has the potential to impact various industrial sectors. POLYM. COMPOS., 39:E9–E29, 2018. © 2017 Society of Plastics Engineers

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Section: Processing Of Cnc Nanocompositesmentioning

confidence: 99%

Functionalized cellulose nanocrystals as reinforcement in biodegradable polymer nanocomposites

et al. 2017

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“…Ghost imaging (GI) is an imaging technique that generates the image of an object by calculating the second-order correlation function between two light beams [1][2][3][4][5][6]. Ghost imaging has been widely researched in recent years [7][8][9][10][11][12][13][14][15][16]; it has important applications in many fields such as cryptography [17,18], lidar [19,20], medical imaging [21,22], micro object imaging [23,24], three-dimensional imaging [25][26][27][28] and single-pixel imaging [29][30][31][32][33]. In many practical scenes, GI is subject to interference from the transmission medium and from optical background noise.…”

Section: Introductionmentioning

confidence: 99%

Instant ghost imaging: improving robustness for ghost imaging subject to optical background noise

Yang

Zhang

et al. 2020

OSA Continuum

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Ghost imaging (GI) is an imaging technique that uses the second-order correlation between two light beams to obtain the image of an object. However, standard GI is affected by optical background noise, which reduces its practical use. We investigated the robustness of an instant ghost imaging (IGI) algorithm against optical background noise and compare it with the conventional GI algorithm. Our results show that IGI is extremely resistant to spatiotemporally varying optical background noise that can change over a large range. When the noise is large in relation to the signal, IGI will still perform well in conditions that prevent the conventional GI algorithm from generating an image because IGI uses signal differences for imaging. Signal differences are intrinsically resistant to common noise modes, so the IGI algorithm is strongly robust against noise. This research is of great significance for the practical application of GI.

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“…The image can be formed without a lens (lensless ghost imaging) [6][7][8] or only by using a single-pixel detector (computational ghost imaging, CGI) [9][10][11]. Due to the underlying physics and potential applications in many fields, including lidar [12], tomography [13], and medical imaging [14][15][16], GI has attracted much attention in recent years [17][18][19][20][21][22]. It has also been extended to different domains with certain freedoms of correlation, including atomic domain [23,24], time domain [25][26][27], and spiral imaging [28,29].…”

Section: Introductionmentioning

confidence: 99%

“…This limitation stems from conventional GI algorithms. For example, the background subtraction algorithm requires the second-order correlation function calculation [3,4,10,16]…”

Section: Introductionmentioning

confidence: 99%

Instant ghost imaging: algorithm and on-chip implementation

Yang¹,

Zhang²,

Liu³

et al. 2020

Opt. Express

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Ghost imaging (GI) is an imaging technique that uses the correlation between two light beams to reconstruct the image of an object. Conventional GI algorithms require large memory space to store the measured data and perform complicated offline calculations, limiting practical applications of GI. Here we develop an instant ghost imaging (IGI) technique with a differential algorithm and an implemented high-speed on-chip IGI hardware system. This algorithm uses the signal between consecutive temporal measurements to reduce the memory requirements without degradation of image quality compared with conventional GI algorithms. The on-chip IGI system can immediately reconstruct the image once the measurement finishes; there is no need to rely on post-processing or offline reconstruction. This system can be developed into a realtime imaging system. These features make IGI a faster, cheaper, and more compact alternative to a conventional GI system and make it viable for practical applications of GI.

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Tabletop x-ray ghost imaging with ultra-low radiation

Cited by 280 publications

References 32 publications

Functionalized cellulose nanocrystals as reinforcement in biodegradable polymer nanocomposites

Functionalized cellulose nanocrystals as reinforcement in biodegradable polymer nanocomposites

Instant ghost imaging: improving robustness for ghost imaging subject to optical background noise

Instant ghost imaging: algorithm and on-chip implementation

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