NDLI: Subwavelength hole arrayed stack: Towards terahertz high resolution imaging systems

Content Provider	IEEE Xplore Digital Library
Author	Croenne, C. Garet, F. Carbonell, J. Lheurette, E. Blary, K. Coutaz, J.-L. Lippens, D.
Copyright Year	2009
Description	Author affiliation: ITEAM, Universidad Politécnica de Valencia, Camino de Vera, s/n E-46022, Valencia, Spain (Carbonell, J.) \|\| Institut d'Électronique de Microélectronique et Nanotechnologies, Université des Sciences et Technologies de Lille, Avenue Poincaré, BP 60069, 59652, Villeneuve d'Ascq Cedex, France (Croenne, C.; Lheurette, E.; Blary, K.; Lippens, D.) \|\| Laboratoire IMEP-LAHC, UMR 5130 du CNRS, Université de Savoie, 73376, Le Bourget du Lac Cedex, France (Garet, F.; Coutaz, J.-L.)
Abstract	We report on the electromagnetic response of a stack of sub-wavelength hole metal arrays. The samples were designed for exhibiting left-handed dispersion branches under normal incidence and their transmissivity were optimized via the fabrication of elliptic-shaped holes. An experimental evidence of ground left handed dispersion branches was found around 0.45 THz by time-domain terahertz spectroscopy, supported by full wave simulations. The insertion losses are 3dB for a five-layer structure, this good level being explained by successful impedance matching. This result paves the way of high transmissivity high resolution focusing devices.
Starting Page	626
Ending Page	629
File Size	466086
Page Count	4
File Format	PDF
ISBN	9781424447480
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-29
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	EUMA
Subject Keyword	High-resolution imaging Impedance matching Metamaterials Microwave technology Lighting Plasmons Permittivity Frequency Optical imaging Shape focusing devices Terahertz metamaterials subwavelength hole array
Content Type	Text
Resource Type	Article

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