Optica Publishing Group
Browse

Toward real-time terahertz imaging

Posted on 2018-11-14 - 15:26
Terahertz science and technology have greatly progressed over the last two decades, to a point where the THz region of the electromagnetic spectrum is now a mature research area with many fundamental and practical applications. Furthermore, THz imaging is positioned to play a key role in many industrial applications, as the THz technology is steadily shifting from university-grade instrumentation to commercial systems. In this context, the objective of this review is to discuss the recent advances in THz imaging with an emphasis on the modalities that could enable real-time high-resolution imaging. To this end, we first discuss several key imaging modalities developed over the years: THz transmission, reflection and conductivity imaging, THz pulsed imaging, THz computed-tomography and THz near-field imaging. Then, we discuss several enabling technologies for real-time THz imaging within time-domain spectroscopy paradigm: fast optical delay lines, photoconductive antenna arrays and electro-optic sampling with cameras. Finally, we overview most recent techniques that enable fast THz imaging with single-pixel detectors: mechanical beam-steering, compressive sensing, spectral encoding and fast Fourier optics. We believe that this critical and comprehensive review of enabling hardware, instrumentation, algorithms and potential applications in real-time high-resolution THz imaging, can serve a diverse community of fundamental and applied scientists.

CITE THIS COLLECTION

DataCite
3 Biotech
3D Printing in Medicine
3D Research
3D-Printed Materials and Systems
4OR
AAPG Bulletin
AAPS Open
AAPS PharmSciTech
Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg
ABI Technik (German)
Academic Medicine
Academic Pediatrics
Academic Psychiatry
Academic Questions
Academy of Management Discoveries
Academy of Management Journal
Academy of Management Learning and Education
Academy of Management Perspectives
Academy of Management Proceedings
Academy of Management Review
or
Select your citation style and then place your mouse over the citation text to select it.

SHARE

email
need help?