Field imaging near to the surface of terahertz reflective optics using a vector network analyzer

Hajji, Maryam; Hammler, Jonathan; Zeze, Dagou; Balocco, Claudio; Gallant, Andrew J.

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.

Citation

Hajji, M., Hammler, J., Zeze, D., Balocco, C., & Gallant, A. J. (2017). Field imaging near to the surface of terahertz reflective optics using a vector network analyzer. Applied Optics, 56(31), 8746-8750. https://doi.org/10.1364/ao.56.008746

• Journal Article Type: Article
• Acceptance Date: Sep 26, 2017
• Online Publication Date: Oct 30, 2017
• Publication Date: Nov 1, 2017
• Deposit Date: Oct 31, 2017
• Publicly Available Date: Oct 30, 2018
• Journal: Applied Optics
• Print ISSN: 1559-128X
• Electronic ISSN: 2155-3165
• Publisher: Optica
• Peer Reviewed: Peer Reviewed
• Volume: 56
• Issue: 31
• Pages: 8746-8750
• DOI: https://doi.org/10.1364/ao.56.008746
• Public URL: https://durham-repository.worktribe.com/output/1345195