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Accueil du site > Les options de la spécialité (recherche) > Nanophotonique > Advanced Photonics

Advanced Photonics

par Agnes Maitre - 24 novembre 2009

Enseignants : Ariel Levenson, Robert Kuszelewicz (LPN, CNRS), H. Benisty (Institut d’Optique), G. Leo (MPQ, Paris 7)

Objectives

The Objective of this course is to show how semiconductors and their peculiarities such as excitons or intersubband transitions intervene in novel frontiers of photonics : nonlinear optical signal processing, and quantum structures such as quantum cascade lasers.

Pré-requis

Diode laser de base (Fabry-Perot), milieux à gain et électro-optiques, bases des télécoms optiques (fibres, modes, débit)

Plan du cours

1) Wave coupling,semiconductor emblematic devices (H. Benisty, 6h) :
We will start by a reminder of the description of wave coupling and of semi-conductors and quantum wells.
We will then study as a general basis the application of these concepts through a couple of emblematic devices (QW laser,DFB, VCSEL,QD laser)
2) Semiconductor linear properties of basic and advanced structures (A. Levenson, R. Kuszelewicz, )
Electronic & optical properties of quantum well
Electronic & optical properties of wires and quantum dots
Fabrication and technologies
Periodical structures : optical properties
3) Nonlinear optics of semiconductors : phenomena & applications(A. Levenson, R. Kuszelewicz)
Intrinsic versus dynamical nonlinearities
Second order intrinsic nonlinearities
Nonlinear effects in vertical cavity systems
Nonlinear effects governed by the dynamics of material excitations
Spatio-temporal effects and NLO
Second Harmonic Generation, and other second order NL applications
Nonlinear Photonic Crystals
Spatial solitons and applications to all optical logic
4)Quantum semiconductor structures (G. Leo)
Based on low-dimensionl physics of electrons and photons, we will underline the possiblities gained from band engineering to exploit intraband transitions from THz to mid infrared ;
Two emblematic devices based on intersubband transitins will be outlined ; QWIP detectors and quantum cascade lasers, of high interest for molecule sensing, etc.
A more prospective course will be dedicated to integrated single photon sources or twin photons, for quantum optics and cryptography applications.