Related Experiment Video
Updated: Oct 11, 2026

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
Published on: September 26, 2014
Spontaneous radiation and lamb shift in three-dimensional photonic crystals
1Department of Physics, Hong Kong Baptist University, Kowloon Tong, Hong Kong and Department of Applied Physics, Shanghai Jiao Tong University, Shanghai, People's Republic of China.
Abstract:
Spontaneous emission in photonic crystals with anisotropic three-dimensional dispersion relation is studied. If the upper level is below a characteristic frequency omega(1), or above omega(2), or between omega(1) and omega(2), the radiation is a localized field with a frequency in the band gap, or a propagating field with a frquency in the band, or a diffusion field, respectively. An analytical expression for the Lamb shift is obtained. The Lamb shift for the current case is small compared to that in an ordinary vacuum or in one- or two-dimensional photonic crystals due to lower density of states.
Related Concept Videos
The de Broglie Wavelength
Photoelectric Effect
Standing Waves in a Cavity
Photoluminescence: Fluorescence and Phosphorescence
A pair of electrons in a...
Deactivation Processes: Jablonski Diagram
Determination of Crystal Structures

