7 papers · 1 filter
Superradiant lasing in inhomogeneously broadened ensembles with spatially varying coupling
Anna Bychek, Christoph Hotter, David Plankensteiner +1
Theoretical studies of superradiant lasing on optical clock transitions predict a superb frequency accuracy and precision closely tied to the bare atomic linewidth. Such a superrad…
Continuous narrowband lasing with coherently driven V-level atoms
Christoph Hotter, David Plankensteiner, Helmut Ritsch
Simultaneous strong coherent pumping of the two transitions of a V-level atom with very differentdecay rates has been predicted to create almost perfect inversion on the narrower t…
Polarization Control of Radiation and Energy Flow in Dipole-Coupled Nanorings
Julian Cremer, David Plankensteiner, Mariona Moreno-Cardoner +2
Collective optical excitations in dipole-coupled nanorings of sub-wavelength spaced quantum emitters exhibit extreme sub-radiance and field confinement facilitating an efficient an…
Superradiant Cooling, Trapping, and Lasing of Dipole-Interacting Clock Atoms
Christoph Hotter, David Plankensteiner, Laurin Ostermann +1
A cold atomic gas with an inverted population on a transition coupled to a field mode of an optical resonator constitutes a generic model of a laser. For quasi-continuous operation…
Extraordinary subradiance with lossless excitation transfer in dipole-coupled nano-rings of quantum emitters
Maria Moreno-Cardoner, David Plankensteiner, Laurin Ostermann +2
A ring of sub-wavelength spaced dipole-coupled quantum emitters possesses only few radiant but many extraordinarily subradiant collective modes. These exhibit a 3D-confined spatial…
Enhanced collective Purcell effect of coupled quantum emitter systems
David Plankensteiner, Christian Sommer, Michael Reitz +2
Cavity-embedded quantum emitters show strong modifications of free space radiation properties such as an enhanced decay known as the Purcell effect. The central parameter is the co…