Spontaneous lifetime in a dielectrically-apertured Fabry-Perot microcavity

Area of Science:

• Optics and Photonics
• Quantum Optics
• Materials Science

Background:

• Spontaneous emission is a fundamental quantum optical process.
• Fabry-Perot microcavities are used to control light-matter interactions.
• Dielectric apertures can modify optical fields within microcavities.

Purpose of the Study:

• To investigate the modification of spontaneous emission rates.
• To analyze the role of a dielectric aperture in a microcavity.
• To understand the impact of optical confinement on emission properties.

Main Methods:

• Numerical calculations of spontaneous emission rates.
• Modeling a point source dipole within a Fabry-Perot microcavity.
• Incorporating a passive current source model for the dielectric aperture.

Main Results:

• The spontaneous emission rate is dependent on the dielectric aperture's design parameters.
• A significant enhancement of spontaneous emission is observed on resonance.
• Three-dimensional optical confinement by the aperture is identified as the key factor for enhancement.

Conclusions:

• Dielectric apertures offer a method to tune spontaneous emission rates in microcavities.
• The design of dielectric apertures is crucial for optimizing emission enhancement.
• This work provides insights into controlling light emission for applications in quantum optics and photonics.