Interferometric Refractive Index Sensing with Terahertz Spoof Surface Plasmons

Autor: P. G. Huggard, Y. Pan, S. R. Andrews, S. N. M. Hashim

Publikováno v: Journal of Infrared, Millimeter, and Terahertz Waves. 40:516-523

Near field interference of spoof surface plasmons propagating on two opposing faces of a thin metal sheet waveguide perforated by a periodic array of tapered holes has been investigated by time-domain terahertz spectroscopy. Closely spaced, chirped s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e3d043986671c4fd422fa2fd5608be28
https://doi.org/10.1007/s10762-019-00590-4

Highly confined guiding of terahertz surface plasmon polaritons on structured metal surfaces

Autor: Christopher Williams, Francisco J. Garcia-Vidal, Luis Martín-Moreno, S. R. Andrews, Antonio I. Fernández-Domínguez, Stefan A. Maier

Publikováno v: Nature Photonics. 2:175-179

Metamaterials are artificial materials with subwavelength structure1 that enable the translation of magnetic2 and electric responses3 into spectral regions not accessible through naturally occurring materials. Here, we report direct measurements of t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3a080ec46d7a4e3f39cfa15ce2c3e9e8
https://doi.org/10.1038/nphoton.2007.301

Magnetic-field suppression of THz charge oscillations in a double quantum well

Autor: S. R. Andrews, O. E. Raichev, R. Grey, J. A. Cluff, C. J. Shaw, Peter G. Huggard

Publikováno v: Physical Review B. 57:R9443-R9446

We have observed a suppression of the THz radiation emitted by charge oscillations photoexcited in the conduction band of ${\mathrm{G}\mathrm{a}\mathrm{A}\mathrm{s}/\mathrm{A}\mathrm{l}}_{x}{\mathrm{Ga}}_{1\ensuremath{-}x}\mathrm{As}$ asymmetric doub

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4f62b3925a4ac07f4c4bae436a591030
https://doi.org/10.1103/physrevb.57.r9443

Characterization of a hollow core fibre-coupled near field terahertz probe

Autor: Stefan A. Maier, Christopher Williams, Mukul Misra, Yao Pan, S. R. Andrews

Publikováno v: Misra, M, Pan, Y, Williams, C, Maier, S A & Andrews, S R 2013, ' Characterization of a hollow core fibre-coupled near field terahertz probe ', Journal of Applied Physics, vol. 113, no. 19, 193104 . https://doi.org/10.1063/1.4804952
Journal of applied physics, 2013, Vol.113(19), pp.193104 [Peer Reviewed Journal]

We describe the design and performance of a freely positionable THz near field probe based on a hollow core photonic crystal fibre-coupled photoconducting dipole antenna with an integrated sub-wavelength aperture. Experimental studies of the spatial

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44ccbd3054a8aec3c0d886c99b030080
https://purehost.bath.ac.uk/ws/files/11985868/JApplPhys_113_193104.pdf

High dynamic range, hyper-terahertz detection with silicon photoconductors

Autor: S. R. Andrews, A. Hussain, A.C. Muir

Publikováno v: Applied Physics Letters. 108:241102

The frequency response of ion implanted silicon photoconductive devices designed for coherent detection in time domain terahertz spectroscopy has been studied between 0.2 and 30 THz. Unlike devices using polar photoconductors or ones having polar sub

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::05d5265edee9753902a4b9f79747fe63
https://doi.org/10.1063/1.4954029