Laboratory for Photonics and Nanostructures
Français Anglais
Photonics and Quantum Electronics > Emission control and THz sources
image 1
image 2
image 3
image 4
image 5
image 6
image 7

COMS

Trait horizontal

Puce Back home


Puce Presentation

Puce Members

Puce Publications

Puce Contracts and projects


Puce Group PEQ

Puce Theme CMEP

Trait vertical

Puce Presentation

Today, optoelectronic devices hardly reach the millimetre-waves (>30 GHz), and the sub-millimetre-wave domain (>300 GHz) is very little exploited. The interactions between microwaves and optical waves allow the generation, transmission, processing and detection of millimetre-wave and sub-millimetre-wave signals by mixing them with optical frequencies. Two approaches are presently investigated to better understand the generation mechanisms of large wavelength radiation, the aim of which is to develop new monolithic semiconductor sources:

  • in a first approach, the beat of two optical wavelengths at frequencies f1 and f2 generates a millimetre-wave signal at frequency f=f2-f1 in a quadratic photodetector. The research work is devoted to f=40 GHz and f=60 GHz optoelectronic photo-oscillators for telecommunications and radio-communications over optical fibre. It is also devoted to ultra-fast photodetectors coupled to a wideband TeraHertz antenna (0.4-2 THz) for imaging applications in this spectral region (in the fields of proximity communications, security, environment, biology…).

    Conversion

  • in a second approach, a TeraHertz frequency (typically f=3 THz) is generated in a quantum cascade laser structure, where frequency mixing with an optical signal can occur. The research work is devoted to TeraHertz transmitters inserted within a micro-cavity (i.e. between reflecting mirrors) to improve their radiative efficiency. Actually, the TeraHertz emission rate notably increases in sub-wavelength metallic micro-cavities, according to a Purcell effect mechanism (see highlight on Purcell enhanced spontaneous emission at TeraHertz frequencies).

    Conversion

Retour sommet page

Puce Members

Contacts

 Minot Christophe  (+33) 1 69 63 61 52  

And also...

 Abram Izo  (+33) 1 69 63 61 79  
 Dupuis Christophe  (+33) 1 69 63 61 42  
 Esnault Jean-Claude  (+33) 1 69 63 60 78  
 Ferlazzo Laurence  (+33) 1 69 63 60 70  
 Harmand Jean-Christophe  (+33) 1 69 63 60 81  
 Moison Jean-Marie  (+33) 1 69 63 61 80  
 Sagnes Isabelle  (+33) 1 69 63 61 71  

Retour sommet page

Puce Patents

  • Reseaux de guides d'ondes permettant de devier un faisceau lumineux, J.-M. Moison, C. Minot, FR 0754872, (2007-05-04)
Retour sommet page

Puce Publications

Publication in journals
Retour sommet page

Puce Contracts and projects

    Puce Other National Projects

      ROOTS : Room temperature THz Bloch amplifiers/oscillators

      Reference contract : ANR PNANO
      Coordinator, Partner(s) : J. Mangeney (LPA ), J. Mangeney (LPA ), R. Ferreira (LPA )
      LPN leader(s): Christophe Minot, Jean-Christophe Harmand
      Main goals : Development of tunable amplifiers/oscillators based on Bloch oscillations in semiconductor superlattices at THz frequencies and room temperature (2009-2012)

    Retour sommet page
Retour sommet page

Puce Past and current Internship Training

PhDs

Internship Training


  • Conception de photo-oscillateurs millimétriques pour récupération de fréquence en bande étroite

  • S. Ndao-(2003-04-15 / 2003-08-15)
    Level : Master
    Contact : C. Minot
    Group : Photonics and Quantum Electronic (PEQ)
    More
    Stage d'élève ingénieur de Polytech'Lille
Retour sommet page

Home         Contact         Directory         How to Get to the LPN         News         Useful Links