High-gain media leads to potent dendrimer laser

Researchers at the Communications Research Laboratory (Kobe, Japan) have reportedly demonstrated dye lasers with mirrorless cavities and spectral linewidths of less than 0.1 nm using hyper-structured material called dendritic macromolecules, or dendrimers, as the active laser medium.1 Such dendrimer lasers, combined with the flexibility and tunability of organic lasers, could soon enable lasers as small as 100 nm in size.

X-RAY CRYSTALLOGRAPHY