Share Email Print
cover

Proceedings Paper

Design and analysis of quasi-optical THz time domain imaging systems
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

A THz time domain imaging system is optimized and analyzed with ZEMAX. The requirements to the optical design of time domain imaging systems in the THz spectral region are deduced. A system is presented, which is diffraction-limited for wavelengths down to 838 μm and field points up to ±4 mm. In the optical system a 90° off-axis parabolic mirror is combined with an aspheric plastic lens. The lens was made from ZEONEX E48R®, and it was manufactured by ultraprecision machining. A resolution test of the system shows that on time domain analysis of the pulse maximum on-axis 1 LP/mm can be resolved with an intensity contrast of 0.22. The resolution of the outermost field point is 0.67 LP/mm with an intensity contrast of 0.23. An outlook of an optimized system for imaging a field of ±10 mm in x- and y-direction is given.

Paper Details

Date Published: 27 September 2008
PDF: 12 pages
Proc. SPIE 7100, Optical Design and Engineering III, 71000S (27 September 2008); doi: 10.1117/12.797606
Show Author Affiliations
Claudia Brückner, Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)
Friedrich-Schiller-Univ. Jena (Germany)
Boris Pradarutti, Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)
Friedrich-Schiller-Univ. Jena (Germany)
Ralf Müller, Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)
Stefan Riehemann, Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)
Gunther Notni, Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)
Andreas Tünnermann, Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)
Friedrich-Schiller-Univ. Jena (Germany)


Published in SPIE Proceedings Vol. 7100:
Optical Design and Engineering III
Laurent Mazuray; Rolf Wartmann; Andrew Wood; Jean-Luc Tissot; Jeffrey M. Raynor, Editor(s)

© SPIE. Terms of Use
Back to Top