Laser diodes are semiconductors that generate light and amplify it using repeated reflection or "optical feedback." Once the ...

In a study published in Optics Express, a research group led by Prof. Fu Yuxi from Xi'an Institute of Optics and Precision ...

points of their band structure is called a photonic-crystal surface-emitting laser (PCSEL). Such lasers are capable of forming stable standing wave states over large areas, resulting in the emission ...

Our study shows that the self-assembly of photonic liquid crystal structures can be guided by laser beams. In a topologically frustrated chiral nematic liquid crystal, a focused beam can locally ...

Welcome to the photonic-crystal surface-emitting laser (PCSEL ... of specially-shaped small air holes (nanometre scale). This structure sets up a special resonance condition, causing a narrowband ...

“Compared to photonic-crystal surface-emitting lasers, even the best conventional semiconductor lasers today seem like bulky edge-emitting devices with poor beam quality, large beam spread and ...

Photonic crystal surface-emitting lasers or PCSELs are laser diodes that generate laser beams through controlled light wave interaction within a photonic crystal structure. In a recent study, ...

are advanced laser diodes where the optical gain is typically distributed laterally to the propagating light within a photonic crystal (PC) structure. They differ from traditional lasers by ...