Light-emitting thyristor, light source head, and image forming apparatus

摘要

A light-emitting thyristor includes a substrate, a first semiconductor multi-layered mirror of a first conductivity type that is formed on the substrate, a gate layer that is formed on the first semiconductor multi-layered mirror by stacking a plurality of semiconductor light-emitting layers having different peak values of an emission wavelength, and a second semiconductor multi-layered mirror of a second conductivity type that is formed on the gate layer.