We demonstrate efficient light extraction from the active region of bottom-emitting organic light emitting devices (OLEDs) using a high refractive index, nondiffractive hemispherical microlens array ...

Time-modulated arrays (TMAs) transmitting information bearing orthogonal frequency division multiplexing (OFDM) signals can achieve directional modulation. By turning its antennas on and off in a ...

The impact of magnetic field drop in the reverse region on beam transmission stability is analyzed, and a compensation principle and corresponding design methodology are established. Simulations are ...