Active terahertz two-wire waveguides

Mridha, M. K. et al. (2014) Active terahertz two-wire waveguides. Optics Express, 22(19), pp. 22340-22348. (doi: 10.1364/OE.22.022340) (PMID:25321706)

Abstract

We demonstrate, by generating a THz electric field directly within the guiding structure, an active two-wire waveguide operating in the terahertz (THz) range of wavelengths. We compare the energy throughput of the active configuration with that of a radiatively coupled semi-large photoconductive antenna, in which the radiation is generated outside the waveguide, reporting a 60 times higher energy throughput for the same illumination power and applied voltage. This novel, active waveguide design allows to have efficient coupling of the THz radiation in a dispersion-less waveguide without the need of involved radiative coupling geometries.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Clerici, Professor Matteo
• Authors: Mridha, M. K., Mazhorova, A., Clerici, M., Al-Naib, I., Daneau, M., Ropagnol, X., Peccianti, M., Reimer, C., Ferrera, M., Razzari, L., Vidal, F., and Morandotti, R.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Optics Express
• Publisher: Optical Society of America
• ISSN: 1094-4087
• ISSN (Online): 1094-4087