Optical Amplification at 637 and 1067 nm Based on Organic Molecule AQ(PhDPA)₂ and Nd^III Complex Codoped Polymer Waveguides (Small Methods 4/2023)

Front Cover In article number 2201366, Hui Xu, Dan Zhang, and co-workers demonstrate an innovative strategy of realizing dual-wavelength simultaneous amplification in thermally activated delayed fluorescence molecule and NdIII complex co-doped polymer waveguides. The molecular energy transfer mechanism makes it possible for the low-cost light-emitting diodes to replace the traditional lasers as the pump sources of the optical waveguide amplifiers.