By tuning light absorption with liquid crystal (LC), the color reflected from a nanostructured surface can be changed as a function of voltage. The engineered plasmonic surface allows LC reorientation and overlap between plasmonic fields and LC, enabling large tunability across the entire visible spectrum.
Design of a wedged light guide with a sine-shaped light-redirecting surface is proposed and its optical performance was simulated. Tooling inserts of the proposed light guide were fabricated by surface structuring by laser remelting process, and their shape accuracy and light scattering performance was demonstrated.
Metal halide perovskite materials have made fast impressive progresses for photonic devices. Its solution-processability and wide substrate-compatibility makes the materials highly attractive for integrated photonics. In this talk, we present our work on perovskite LEDs, lasers, optical-memory arrays, and discuss the potentials of the technologies.
We investigated the possibility of the optimal driving method of an organic light-emitting diode (OLED) lighting system with four independent emitters by theoretically analyzing the system transfer functions of a matrix-driving scheme with voltage signal feedback for degradation compensation purpose and a direct-current driving scheme.