ABSTRACT
As a next-generation high-power lighting technology, phosphor-converted laser lighting has attracted great attentions in high-luminance and high luminous flux applications. However, the incident laser beam of high power density also brings color conversion materials (i.e., phosphors) serious challenges, such as thermal quenching and luminance saturation. These challenges, therefore, drive the explosive developments of all-inorganic color converters suitable for laser excitation. Unfortunately, the mechanism for luminance saturation is still poorly understood, whereas laser phosphors capable of realizing efficient and high-quality laser lighting sources are still scarce. It is still a tough mission to explore more laser phosphors with better performance. This chapter begins with an introduction to laser lighting technology and then proposes the requirements for laser phosphors. Third, recent progresses on laser phosphors in term of single crystals, phosphor-in-glass, phosphor films, and phosphor ceramics are highlighted. Finally, some perspectives for laser phosphors are demonstrated.
