Title :

Progress in continuous wave THz molecular laser optically pumped by a quantum cascade laser

Author(s) :

Pagies, Antoine [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Ducournau, Guillaume [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Photonique THz - IEMN [PHOTONIQUE THZ - IEMN]
Lampin, Jean-Francois [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Photonique THz - IEMN [PHOTONIQUE THZ - IEMN]

Conference title :

2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

City :

Cancun

Country :

Mexique

Start date of the conference :

2017-08-27

Book title :

Progress in continuous wave THz molecular laser optically pumped by a quantum cascade laser

Publisher :

IEEE

Publication date :

2017-10-16

English keyword(s) :

Quantum cascade lasers
Pump lasers
Laser transitions
Optical pumping
Measurement by laser beam
Optical imaging

HAL domain(s) :

Sciences de l'ingénieur [physics]

English abstract : [en]

We have demonstrated a new approach to realize a continuous wave room temperature THz laser source: a low-pressure molecular gas is optically pumped by a solid-state mid-infrared source. A tunable quantum cascade laser ...
Show more >We have demonstrated a new approach to realize a continuous wave room temperature THz laser source: a low-pressure molecular gas is optically pumped by a solid-state mid-infrared source. A tunable quantum cascade laser allows to have access to transitions that are not accessible to CO 2 lasers. Here we present our last results concerning NH3: pure inversion transitions allows emission around 1 THz. At 1.073 THz a new cavity design is used and a power of 0.67 mW is obtained with a high differential efficiency of 6.4 mW/W. This improved output power will permit imaging and local oscillator applications.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