Continuous‐Wave Organic Raman Microlaser Arrays for Laser Displays

Microlaser arrays play important roles in a variety of cutting‐edge photonic applications. Organic Raman gain materials hold great promise to achieve continuous‐wave (c.w.) microlaser arrays toward compact laser displays. However, due to the high degrees of freedom of molecular self‐assembly, current organic microcrystal arrays suffer from random sizes and orientations, which goes against uniform Raman laser emission toward laser displays. Herein, a strongly constrained self‐assembly method is reported to synthesize homogeneous organic microcrystal arrays providing uniform full‐color c.w. Raman laser emission for laser displays. The strongly constrained self‐assembly method enables strict control of molecular self‐assembly, producing homogeneous organic microcrystal arrays. The single‐component microcrystal arrays support c.w. operation and uniform outputs of single‐mode blue, green, and red Raman lasing. The microcrystal Raman laser arrays exhibit excellent color expression and display capabilities. This work lays the foundation for developing c.w. organic microlaser arrays toward laser displays.