Full-Color Laser Displays Based on Optical Second-Harmonic Generation from the Thin Film Arrays of Selenium Nanowires
Seung Won Jun, Sangheon Jeon, Jun‐Young Kwon, Jaebeom Lee, Chang‐Seok Kim, Suck Won Hong
Abstract
The second-harmonic generation (SHG) phenomenon, which readily supports the characteristic advantages of promising laser-based display systems, brings a new concept to advanced displays. Here, we demonstrate a laser projection display that utilizes the fabrication and design principles in individual micron-scale pixel arrays by depositing colloidal Se nanowires, a nonlinear optical nanomaterial for full-color light emission. Our system reveals the manufacturing process of planar light-emitting elements without the use of complex color segments, and the layout represents a full-color laser display with high-resolution pixels extracted from the combination of a pulsed femtosecond laser scanning process to access the frequency up-conversion technique based on a wavelength-tunable manner. The work presents attractive features for newly emerging multifunctional optical components composed of unique nanomaterials that can be applied for displays, bioimaging, and other optoelectronic devices.