Broadband terahertz light-matter interaction ...
Document type :
Article dans une revue scientifique
DOI :
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]
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 >
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 :
Source :
Files
- https://hal.archives-ouvertes.fr/hal-02317238/document
- Open access
- Access the document
- https://hal.archives-ouvertes.fr/hal-02317238/document
- Open access
- Access the document
- document
- Open access
- Access the document
- photonics-05-00011-v3.pdf
- Open access
- Access the document
- Open access
- Access the document