{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,28]],"date-time":"2026-02-28T08:15:18Z","timestamp":1772266518322,"version":"3.50.1"},"reference-count":29,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2022,5,18]],"date-time":"2022-05-18T00:00:00Z","timestamp":1652832000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"\u201cXingLiaoYingCai\u201d Talents of Liaoning Province","award":["XLYC2007074"],"award-info":[{"award-number":["XLYC2007074"]}]},{"name":"\u201cXingLiaoYingCai\u201d Talents of Liaoning Province","award":["RC200512"],"award-info":[{"award-number":["RC200512"]}]},{"DOI":"10.13039\/501100018559","name":"Shenyang Young and Middle-aged Science and Technology Innovation Talent Support Program","doi-asserted-by":"publisher","award":["XLYC2007074"],"award-info":[{"award-number":["XLYC2007074"]}],"id":[{"id":"10.13039\/501100018559","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100018559","name":"Shenyang Young and Middle-aged Science and Technology Innovation Talent Support Program","doi-asserted-by":"publisher","award":["RC200512"],"award-info":[{"award-number":["RC200512"]}],"id":[{"id":"10.13039\/501100018559","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Terahertz lensless phase retrieval imaging is a promising technique for non-destructive inspection applications. In the conventional multiple-plane phase retrieval method, the convergence speed due to wave propagations and measures with equal interval distance is slow and leads to stagnation. To address this drawback, we propose a nonlinear unequal spaced measurement scheme in which the interval space between adjacent measurement planes is gradually increasing, it can significantly increase the diversity of the intensity with a smaller number of required images. Both the simulation and experimental results demonstrate that our method enables quantitative phase and amplitude imaging with a faster speed and better image quality, while also being computationally efficient and robust to noise.<\/jats:p>","DOI":"10.3390\/s22103816","type":"journal-article","created":{"date-parts":[[2022,5,18]],"date-time":"2022-05-18T23:14:26Z","timestamp":1652915666000},"page":"3816","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Enhanced Terahertz Phase Retrieval Imaging by Unequal Spaced Measurement"],"prefix":"10.3390","volume":"22","author":[{"given":"Chungui","family":"Xing","sequence":"first","affiliation":[{"name":"State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China"}]},{"given":"Feng","family":"Qi","sequence":"additional","affiliation":[{"name":"Key Laboratory of Opto-Electronic Information Processing, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110169, China"},{"name":"Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China"},{"name":"Key Laboratory of Liaoning Province in Terahertz Imaging and Sensing, Shenyang 110169, China"}]},{"given":"Shuxu","family":"Guo","sequence":"additional","affiliation":[{"name":"State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China"}]}],"member":"1968","published-online":{"date-parts":[[2022,5,18]]},"reference":[{"key":"ref_1","first-page":"1308","article-title":"Terahertz radiation effects and biological applications","volume":"30","author":"Gallerano","year":"2009","journal-title":"J. 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