Photonic crystal lasers

Photonic crystal lasers are advanced light sources that use tiny, periodic structures called photonic crystals to control and amplify light efficiently. These structures create a special environment that traps and guides light waves, making it easier for the laser to produce a focused, coherent beam with minimal energy loss. This design allows for highly compact, efficient, and tunable lasers suitable for applications like telecommunications, sensors, and medical devices. By manipulating the pattern of the photonic crystal, researchers can customize the laser’s properties, leading to innovations in precise light control at microscopic scales.