Photonic materials are substances designed to manipulate and control light, or photons. These materials can be used in various applications, including telecommunications, sensors, and displays. They often have unique optical properties that allow them to reflect, transmit, or absorb light in specific ways, making them essential for developing advanced technologies. Common examples of photonic materials include semiconductors, metamaterials, and dielectric materials. Researchers are continually exploring new types of photonic materials to improve the efficiency and performance of devices like lasers, LEDs, and solar cells. The ongoing advancements in this field hold great promise for future innovations in optics and photonics.