Lancaster University Centre for Nanoscale Dynamics and Mathematical Modelling

Microlasers and microresonators

The miniaturisation of semiconductor devices now makes it possible to design microlasers of dimensions not much larger than the optical wave length. These resonators pose challenges already on the level of the resonator modes, which intricately depend on the confinement geometry. Moreover, dielectric resonators are relatively open systems, which affects quantum-optical properties such as the quantum limit of the laser linewidth.

Our research lays the theoretical foundations for the functionality and characteristics of such microlasers. This brings together concepts of mesoscopic physics, quantum optics, quantum dynamics, and quantum chaos. The research is funded by the EC through the Marie-Curie Excellence Team Nanoelectrophotonics, and by the EPSRC through the grant "Semiclassical limit of open chaotic systems".

Image of a radiation pattern of an annular dielectric microresonator

Radiation pattern of an annular dielectric microresonator

List of publications

Model for Chaotic Dielectric Microresonators Phys. Rev. A 77, 013834 (2008) JP Keating, M Novaes, H Schomerus
Correcting ray optics at curved dielectric microresonator interfaces: Phase-space unification of Fresnel filtering and the Goos-Hanchen shift Physical Review Letters 96, 243903 (2006) H. Schomerus and M. Hentschel Download pdf document
Optomechanical probes of resonances in amplifying microresonators Physical Review A 70, 012703 (2004) H. Schomerus, J. Wiersig, and M. Hentschel Download pdf document
Husimi functions at dielectric interfaces: Inside-outside duality for optical systems and beyond Europhysics Letters 62, 636 (2003) M. Hentschel, H. Schomerus, and R. Schubert Download pdf document
Fresnel laws at curved dielectric interfaces of microresonators Physical Review E 65, 045603 (2002) M. Hentschel and H. Schomerus Download pdf document
Counting statistics of photons produced by electronic shot noise Physical Review Letters 86, 700 (2001) C. W. J. Beenakker and H. Schomerus Download pdf document
Quantum limit of the laser linewidth in chaotic cavities and statistics of residues of scattering matrix poles Physica A 278, 469 (2000) H. Schomerus, K. M. Frahm, M. Patra, and C. W. J. Beenakker Download pdf document