A ``dipole'' laser is proposed consisting of a nanoparticle and a two-level system with population inversion. If the threshold conditions are fulfilled, the dipole interaction between the two-level system and the nanoparticle leads to coherent oscillations in the polarization of the particles, even in the absence of an external electromagnetic field. The emitted radiation has a dipolar distribution. It does not need an optical cavity, and has a very small volume, ~0.10.3em0exμm³, which can be important for applications in microelectronics. Estimates of the threshold conditions are carried out for a dipole laser composed of a quantum dot and a silver nanoparticle.
No takes yet. Share an insight, caveat, or question.
Protsenko et al. (2005) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: