Rodríguez Ulibarri, PabloKuznetsov, Sergei A.Beruete Díaz, Miguel2016-03-192017-03-1420160003-6951 (Print)1077-3118 (Electronic)10.1063/1.4944326https://academica-e.unavarra.es/handle/2454/20308The following article appeared in Rodríguez-Ulibarri, P., Beruete, M., & Kuznetsov, S. (2016). Wide angle terahertz sensing with a cross-dipole frequency selective surface. Applied Physics Letters, 108(11), doi:10.1063/1.4944326 and may be found at http://dx.doi.org/doi:10.1063/1.4944326.In this work, a terahertz sensor based on a cross dipole frequency selective surface is analyzed and experimentally tested. The sensing structure is optimized for operation at the fundamental band- stop resonance near 0.7THz and characterized under normal and oblique incidence. The sensing performance as a function of the incidence angle and the wave polarization is evaluated with good agreement between simulations and measurements. It is shown that a figure of merit for the pro- posed sensor can be enhanced from 0.2 up to 0.6 due to switching from normal to oblique excita- tion, which yields the maximum performance for TM polarization at the incidence angle of 70º. The presented results demonstrate a wide angle operation regime in THz sensing that opens up an alternative approach in improving capabilities of sensing devices.application/pdfeng© 2016 AIP Publishing LLC. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.Terahertz sensorsCross-dipole frequency selective surfacesinfo:eu-repo/semantics/articleAcceso abierto / Sarbide irekiainfo:eu-repo/semantics/openAccess