TY - JOUR
T1 - Terahertz polarization imaging and its applications
AU - Watanabe, Shinichi
N1 - Funding Information:
This work was partially supported by JSPS KAKENHI Grant Numbers JP18H02040 and the Japan Science and Technology Agency (JST) under Collaborative Research Based on Industrial Demand 'Terahertz-wave: Towards Innovative Development of Terahertz-wave Technologies and Applications'
Publisher Copyright:
© 2018 by the author.
PY - 2018/12/1
Y1 - 2018/12/1
N2 - This review focuses on several recent research activities regarding precise and fast polarization-sensitive terahertz time-domain spectroscopy systems for imaging purposes, and explains three interesting application examples. Owing to modulation techniques that have recently been developed for the evaluation of the instantaneous terahertz electric-field (E-field) vector, fast and precise terahertz polarization imaging becomes feasible. This terahertz technology enables high-resolution surface topography, precise understanding of the spatial E-field vector distribution of the focused terahertz pulse, and examination of strain-induced birefringence in polymeric materials. These examples constitute a new application area of terahertz photonics with emphasis on both fundamental optics and industrial applications.
AB - This review focuses on several recent research activities regarding precise and fast polarization-sensitive terahertz time-domain spectroscopy systems for imaging purposes, and explains three interesting application examples. Owing to modulation techniques that have recently been developed for the evaluation of the instantaneous terahertz electric-field (E-field) vector, fast and precise terahertz polarization imaging becomes feasible. This terahertz technology enables high-resolution surface topography, precise understanding of the spatial E-field vector distribution of the focused terahertz pulse, and examination of strain-induced birefringence in polymeric materials. These examples constitute a new application area of terahertz photonics with emphasis on both fundamental optics and industrial applications.
KW - Birefringence
KW - Parabolic mirror
KW - Polarization
KW - Terahertz spectroscopy
KW - Topography
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U2 - 10.3390/photonics5040058
DO - 10.3390/photonics5040058
M3 - Review article
AN - SCOPUS:85058692955
VL - 5
JO - Photonics
JF - Photonics
SN - 2304-6732
IS - 4
M1 - 58
ER -