After publication of the authors' first use of the optical microscopic cavity (microcavity) in the investigation of anomalous effects in spontaneous emission (SpE), a controversy arose as to whether a dielectric-multilayer structure can provide an efficient vacuum-confinement effect. The authors report the rigorous computer calculation of the SpE probabilities, Γ∥ and Γ⊥, corresponding to the directions of the emitting dipole μ parallel and orthogonal, respectively, to the plane of the microcavity mirrors. To assess the validity of the algorithm used, the results of the calculation were checked experimentally by measuring r(θ) and φ(θ) for s- and p-polarizations using a single-mode He-Ne laser and the actual dielectric mirrors. The results demonstrated that an efficient vacuum-confinement effect is indeed achieved in a microcavity bound by multilayer dielectric structures.
Vacuum confinement and spontaneous emission in a microcavity terminated by dielectric multilayers
CRESCENTINI, LUCA;
1990-01-01
Abstract
After publication of the authors' first use of the optical microscopic cavity (microcavity) in the investigation of anomalous effects in spontaneous emission (SpE), a controversy arose as to whether a dielectric-multilayer structure can provide an efficient vacuum-confinement effect. The authors report the rigorous computer calculation of the SpE probabilities, Γ∥ and Γ⊥, corresponding to the directions of the emitting dipole μ parallel and orthogonal, respectively, to the plane of the microcavity mirrors. To assess the validity of the algorithm used, the results of the calculation were checked experimentally by measuring r(θ) and φ(θ) for s- and p-polarizations using a single-mode He-Ne laser and the actual dielectric mirrors. The results demonstrated that an efficient vacuum-confinement effect is indeed achieved in a microcavity bound by multilayer dielectric structures.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
