[en] Imaging with THz radiation has proved an important tool for both fundamental
science and industrial use. Here we review a class of THz imaging implementations, named
coherent lensless imaging, that reconstruct the coherent response of arbitrary samples with a
minimized experimental setup only based on a coherent source and a camera. After discussing
the appropriate sources and detectors to perform them, we detail the fundamental principles and
implementations of THz digital holography and phase retrieval. Despite these techniques owe a
lot to imaging with different wavelengths, innovative concepts are also being developed in the
THz range and are ready to be applied in other spectral ranges. This makes our review useful for
both the THz and imaging communities, and we hope it will foster their interaction.
Research Center/Unit :
STAR - Space sciences, Technologies and Astrophysics Research - ULiège
Disciplines :
Physics
Author, co-author :
Valzania, Lorenzo ✱
Zhao, Yuchen ✱; Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Rong, Lu
Wang, Dayong
Georges, Marc ; Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Hack, Erwin; Swiss Federal Laboratories for Materials Science and Technology > Empa > Laboratory for Transport at Nanoscale Interfaces
Zolliker, Peter; Swiss Federal Laboratories for Materials Science and Technology, > Empa > Laboratory for Transport at Nanoscale Interfaces
✱ These authors have contributed equally to this work.
Language :
English
Title :
THz coherent lensless imaging
Publication date :
01 December 2019
Journal title :
Applied Optics
ISSN :
1559-128X
eISSN :
2155-3165
Publisher :
Optical Society of America, Washington, United States - District of Columbia
Special issue title :
Digital Holography and 3D Imaging
Volume :
58
Issue :
34
Pages :
G256-G275
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
Région wallonne TERA4ALL; Beijing Nova Program (xx2018072); SNSF (200021_160078/1); NNSFC (61675010)
Funders :
ERDF - European Regional Development Fund NSCF - National Natural Science Foundation of China Région wallonne SNSF - Swiss National Science Foundation
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