Title :

Broadband terahertz light-matter interaction enhancement for precise spectroscopy of thin films and micro-samples

Author(s) :

Peretti, Romain [Auteur]
Photonique THz - IEMN [PHOTONIQUE THz - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Braud, Flavie [Auteur]
Centrale de Micro Nano Fabrication - IEMN [CMNF - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Peytavit, Emilien [Auteur]
Photonique THz - IEMN [PHOTONIQUE THz - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Dubois, Emmanuel [Auteur]
Microélectronique Silicium - IEMN [MICROELEC SI - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Lampin, Jean-Francois [Auteur]
Photonique THz - IEMN [PHOTONIQUE THz - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]

Journal title :

Photonics

Pages :

11

Publisher :

MDPI

Publication date :

2018-09

ISSN :

2304-6732

HAL domain(s) :

Sciences de l'ingénieur [physics]/Micro et nanotechnologies/Microélectronique

English abstract : [en]

In biology, molecules and macromolecules such as sugars, proteins, DNA, RNA, etc., are of utmost importance. Detecting their presence as well as getting information on their actual structure is still a challenge in many ...
Show more >In biology, molecules and macromolecules such as sugars, proteins, DNA, RNA, etc., are of utmost importance. Detecting their presence as well as getting information on their actual structure is still a challenge in many cases. The vibrational states of such molecules correspond to a spectral range extending from infrared to terahertz. Spectroscopy is used for the detection and the identification of such compounds and their structure. Terahertz spectroscopy of a biosample is challenging for two main reasons: the high terahertz absorption by water molecules in the sample; and the small size of the sample - its volume is usually smaller than the cube of the terahertz wavelength, thus the light-matter interaction is extremely reduced. In this paper, we present the design, fabrication, characterization, and first typical use of a biophotonic device that aims to increase the light?matter interaction to enable terahertz spectroscopy of very small samples over a broad band (0.2-2 THz). Finally, we demonstrate the validity of our approach by time-domain spectroscopy of samples of a few µL.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

ANR Project :

Plateforme de traitement laser pour l'électronique flexible multifonctionnelle
Centre expérimental pour l'étude des propriétés des nanodispositifs dans un large spectre du DC au moyen Infra-rouge.

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL