Hajji, Maryam and Hammler, Jonathan and Zeze, Dagou and Balocco, Claudio and Gallant, Andrew J. (2017) 'Field imaging near to the surface of terahertz reflective optics using a vector network analyzer.', Applied optics., 56 (31). pp. 8746-8750.
Abstract
A vector network analyzer-based quasi-optical measurement system that is suitable for mapping electric field intensity and phase near to the surface of terahertz reflective optics is presented. The system uses a fixed five parabolic mirror and transmitter/receiver head arrangement that has the benefit of requiring only the sample to be swept during measurement. The system has been tested with a micromilled aluminum zone plate reflector used as an exemplar structure. The measured focal point of the zone plate reflector, at its designed frequency of 1 THz, is shown to correspond well to both finite difference time-domain simulations and analytical theory.
| Item Type: | Article |
|---|---|
| Full text: | (AM) Accepted Manuscript Download PDF (588Kb) |
| Status: | Peer-reviewed |
| Publisher Web site: | https://doi.org/10.1364/AO.56.008746 |
| Publisher statement: | © 2017 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited. |
| Date accepted: | 26 September 2017 |
| Date deposited: | 06 November 2017 |
| Date of first online publication: | 30 October 2017 |
| Date first made open access: | 30 October 2018 |
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