Photonic crystal lasers

−Ultimate nanolasers and broad-area coherent lasers−

Abstract

Photonic crystals, in which the refractive index changes periodically, are a valuable tool for the manipulation of photons, in which substantial progress has been made in recent years. In this article, the auther reviws two topics on photonic crystal lasers : (i) ultimate nanolasers based on the photonic band-gap effect and high-Q nanocavities, and (ii) broad-area photonic crystal lasers based on the photonic band-edge effect.