Jeudi 29 Mai 2008
A laser is conventionally looked upon as a coherent and bright (that is highly directional)light source, preferably operating in some well-defined mode of a cavity. We will describe a class of lasers that deviate strongly from this cliché. They are not directional and it is not even clear whether the notion of a mode applies to them. All these strange lasers have in common that their optical feedback is not supplied by a mirror, but it is provided by a scattering process.
We will show that some of these lasers can be very small and indeed we
will (try to) answer the question : How small can a laser be ?
RECRUTEMENT ACCES DIRECT
Le département de physique
Fête de la Science 2018 