A SHORT REVIEW OF SOME RECENT APPLICATIONS OF PHOTONIC CRYSTALS

Photonic crystals (PhCs) are still a topic of ongoing research worldwide. Photonic crystals (PhCs) are artificial dielectric structures that control light passage by varying the refractive index randomly and periodically. PhC-based photonic devices can benefit from the capacity to control the electromagnetic field's propagation in these structures. This unique property with a miniature size can be used to make dense integrated circuits. However, as PhC technology is still relatively new, more research on this subject is necessary. In order to summarise the latest advancements in this popular subject, I have reviewed the most widely used and essential optical components based on PhCs in this work, including logic gates, sensors, amplifiers, and absorbers for solar thermophotovoltaic applications. These devices exhibit superior performance than traditional photonic devices.