J.-L. Coutaz 1*, M. Bernier 1, F. Garet 1, S. Joly 1,a , Y. Miyake 2, H. Minamide 2, E. Lheurette 3, and D. Lippens 3
1 IMEP-LAHC, UMR CNRS 5130, University of Savoie, 73376 Le Bourget du Lac Cedex, France
2 RIKEN, Center for Advanced Photonics, Aoba-ku, Sendai, Miyagi 980-0845, Japan
3 IEMN, UMR CNRS 8520, Avenue Poincaré, CS 60069, 59652 Villeneuve d'Ascq Cedex, France
a) Present address: IMS, University of Bordeaux, France
*1 Email: email@example.com
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Abstract: This paper gives a review of recent works we performed in view of characterizing natural materials and metamaterials by terahertz time-domain spectroscopy. We address materials that exhibit a low transmittance in given narrow spectral bands or over the whole experimental spectral window. We give rules to select the most adapted technique for a precise characterization of the sample, i.e. for determining with the best precision the refractive index as well as the coefficient of absorption of the material of the tested sample. The procedures are validated and illustrated by examples of characterization of materials like maltose and DAST, and of fishnet metamaterials that exhibit a left-handed character or a chiral behaviour.
Keywords: Terahertz time-domain spectroscopy, Metamaterials.
Acknowledgments: Part of this work was supported by the ANR-JST France-Japan International Strategic Collaborative Research Program ''Wireless communication using Terahertz plasmonic nano ICT devices'' (WITH).
Cite this article:
J.-L. Coutaz, M. Bernier, F. Garet, S. Joly, Y. Miyake, H. Minamide, E. Lheurette, and D. Lippens.(Invited paper) Terahertz time-domain spectroscopy of absorbing materials and of metamaterials[J]. International Journal of Terahertz Science and Technology, 2014, Vol.7, No.2: 53-69. DOI:10.11906/TST.053-069.2014.06.05