Extended Data Fig. 5: PL characteristics of the electroluminescent metasurfaces based on square arrays of nanodisk OLED pixels.
From: Scalable nanopatterning of organic light-emitting diodes beyond the diffraction limit
a,c Experimental PL BFP images for bare nanopatterned EMLs deposited on glass and their corresponding electroluminescent metasurfaces with 400 nm (a) and 450 nm (c) periodicities. b,d Corresponding angle-dependent PL spectra along the Γ-Χ direction, with the polarizer parallel (p-pol.) and perpendicular (s-pol) to the spectrometer slit.
