Micro light emitting diode with metasurface reflectors

An apparatus comprising:

• a first layer comprising a first plurality of dielectric structures across at least a portion of the first layer, an adjacent pair of the first plurality of dielectric structures having a first pitch;
• a second layer over the first layer, the second layer comprising a transparent conductor;
• a third layer over the second layer, the third layer comprising indium, gallium and nitrogen;
• and
• a fourth layer comprising a second plurality of dielectric structures across at least a portion of the fourth layer, an adjacent pair of the second plurality of dielectric structures having a second pitch less than the first pitch.

An assembly comprising:

• a die;
• and
• a plurality of optical transmitters coupled to the die, one of the optical transmitters comprising a micro-light emitting diode (micro-LED), the micro-LED comprising:
• a first layer comprising a first plurality of dielectric structures, an adjacent pair of the first plurality of dielectric structures having a first pitch;
• a second layer comprising a second plurality of dielectric structures, an adjacent pair of the second plurality of dielectric structures having a second pitch less than the first pitch;
• and
• a third layer between the first layer and the second layer, the third layer comprising a light-emitting material.