Variable zoom digital in-line holographic microscopy

Martin Sanz , Maciej Trusiak , Javier García , Vicente Micó


We report on a novel layout providing variable zoom in digital in-line holographic microscopy (VZ-DIHM). The implementation is in virtue of an electrically tunable lens (ETL) which enables to slightly shift the illumination source axial position without mechanical movement of any system component. Magnifications ranging from ~15X to ~35X are easily achievable using the same layout and resulting in a substantial variation of the total field of view (FOV). The performance of the proposed setup is, first, validated using a resolution test target where the main parameters are analyzed (theoretically and experimentally) and, second, corroborated analyzing biological sample (prostate cancer cells) showing its application to biomedical imaging.
Author Martin Sanz - Optics and Optometry and Vision Sciences [University of Valencia]
Martin Sanz,,
, Maciej Trusiak (FM / IMPh)
Maciej Trusiak,,
- The Institute of Micromechanics and Photonics
, Javier García - Optics and Optometry and Vision Sciences [University of Valencia]
Javier García,,
, Vicente Micó - Optics and Optometry and Vision Sciences [University of Valencia]
Vicente Micó,,
Journal seriesOptics and Lasers in Engineering, ISSN 0143-8166, e-ISSN 1873-0302
Issue year2020
Article number105939
Keywords in Englishphase retrieval, digital image processing, lensless microscopy, coherence imaging, electrically tunable lenses
ASJC Classification2208 Electrical and Electronic Engineering; 2210 Mechanical Engineering; 2504 Electronic, Optical and Magnetic Materials; 3107 Atomic and Molecular Physics, and Optics
Languageen angielski
Score (nominal)140
Score sourcejournalList
ScoreMinisterial score = 140.0, 07-09-2020, ArticleFromJournal
Publication indicators Scopus Citations = 0; WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.874; WoS Impact Factor: 2018 = 4.059 (2) - 2018=3.486 (5)
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