A transmission system includes a transmitter with a signal encoder and a codebook entry selector. The lighting system further includes a diffusive transmissive element adapted to transmit light from the LEDs therethrough and provide diffused light to an area requiring illumination. In another embodiment, a portion of the second semiconductor material is replaced with a third semiconductor material in order to impart uniaxial strain to the lattice structure of the second semiconductor material. The etchant is adapted to selectively remove the material. The water-in-oil emulsion can be formed by using the prepared mixture containing the reverse vesicle as an oil phase and adding water thereto for emulsification.