摘要: Microcavities have been extensively studied over the past several decades.1,2 The motivations for such studies range from most fundamental to very applied. useful in clarifying some problem electrodynamics as effect of vacuum field fluctuations on an emitting dipole.3,4 Microcavity-based devices suggested display applications5 and enhancing efficiency conventional light-emitting diodes.6,7,8,9 Microcavity LEDs based III-N semiconductors proposed sources optical communication systems.7,9 This interest has led numerous contributions, both theoretical experimental, that considerably enhanced our understanding processes microcavities. We need point out there are many types microcavities more technologically important ones described following section. In this chapter, we will be concerned with properties applications one microcavity type: planar microcavities, often simply referred “microcavities.”