Title :

Terahertz electromagnetic generation via optical frequency difference

Author(s) :

Peytavit, Emilien [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Mouret, Gaël [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Lampin, Jean-Francois [Auteur]
Arscott, S. [Auteur]
Desplanque, L. [Auteur]
Vanbésien, O. [Auteur]
Bocquet, Robin [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Mollot, F. [Auteur]
Lippens, D. [Auteur]
Masselin, Pascal [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]

Journal title :

IEE Proceedings. Optolectronics

Pages :

82-87

Publication date :

2002-06

HAL domain(s) :

Physique [physics]

English abstract : [en]

Electromagnetic generation between 0.1 and 3 terahertz has been demonstrated using ultrafast photodetectors loaded by broadband antennas and pumped by 0.8 μm stable lasers. Ultrashort response times have been achieved by ...
Show more >Electromagnetic generation between 0.1 and 3 terahertz has been demonstrated using ultrafast photodetectors loaded by broadband antennas and pumped by 0.8 μm stable lasers. Ultrashort response times have been achieved by means of low-temperature-grown (LTG) GaAs in a deep submicron interdigited technology. The 3 dB cutoff frequency is around 650 GHz with an expected output power of the order of a few tenths of a microwatt in the lower part of the spectrum, depending on the thermal post-processing conditions. Possible improvements via long wavelength laser pumping and a Fabry-Perot cavity-like approach are discussed on the basis of a vertical device scheme.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

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

Source :

Harvested from HAL