Multi-megawatt superradiant emissions from coumarin-doped sol-gel derived silica

Spectroscopic study of sulforhodamine 640-doped sol–gel silica

“…Organic dye molecules as laser gain media enjoy the advantage of broad tunability ranging from 300-900 nm with high efficiency, high photostability and superior thermal-optical properties. Reports on the spectroscopic behaviours [6,7], lasing properties [6,[8][9][10][11][12][13][14][15][16] and optical non-linearities [17] of a large number of dyes trapped in sol-gel-derived silica glasses have already appeared in the literature. The applications of tunable solid-state laser in visible are in remote sensing, isotope separation, high sensitivity analytical spectroscopy and underwater communications.…”

Laser emission from transversely pumped dye-doped free-standing polymer film

“…Ever since, there have been intensive efforts to achieve the incorporation of organic dyes in solid matrices that might replace conventional liquid dye lasers. Most of the recent work has been done using either polymers [3,4] or silica gels [5,6] as the host media. Polymeric materials in particular offer advantages such as ease of processing, which permits the fabrication of devices of virtually any shape and potentially at very low cost.…”

Doped Mesoporous Silica Fibers: A New Laser Material

“…[17,18] For polymers, for example, microcavity, micro-ring and distributed feedback lasing have been demonstrated. [16] However, there are photothermal and photochemical problems that have not yet been solved.…”