Tunable Deep Blue Light for Laser Spectrochemistry

摘要

Semiconductor laser diodes have the potential to be used for new applications in analytical instrumentation. The GaN laser diode, which has only been commercially available since 1999, extends the operating wavelengths of laser diodes from the "red" and near-IR to the "deep blue" range. In this article, we describe the properties of GaN laser diodes and compare them with alternative means for generating blue and near-UV radiation.