Laser behavior and photostability characteristics of organic dye doped silicate gel materials

Knobbe, Edward T.; Dunn, Bruce; Fuqua, Peter D.; Nishida, Fumito

doi:10.1364/ao.29.002729

Cited by 214 publications

(83 citation statements)

References 8 publications

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“…5 The photostability of some organic laser dyes improves when molecules are trapped in solid matrices. [6][7][8][9] Nevertheless, because of the absence of dye reservoirs and circulation systems in solid-state dye lasers, photostability is a critical issue.…”

Section: Introductionmentioning

confidence: 99%

Photostability of dye molecules trapped in solid matrices

et al. 1996

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The photostability of dye molecules trapped in transparent solid matrices synthesized by the solgel technique was studied both experimentally and theoretically using a model with numerical and approximate analytical solutions. The model is based on a one-photon photodestruction process with the creation of an absorbing bleached molecule. We give the number of photons that different trapped dye molecules can absorb on average before they are bleached. Dyes such as Perylene Red, Perylene Orange, Pyrromethenes 567 and 597, Rhodamines 6G and B, DCM, a Xanthylium salt, and Neon Red were investigated; significant differences were observed. Some dye molecules in solvents were also studied; increased stability resulted when the molecules were trapped in solid matrices.

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Section: Introductionmentioning

confidence: 99%

Photostability of dye molecules trapped in solid matrices

et al. 1996

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“…This low-temperature synthesis allows the inclusion of fluorescent dyes or other optically active molecules [15]. The xerogel matrices, resulting from the sol-gel process, can be used for a number of applications, for example, to study the photophysics of dye molecules and their interactions with the matrix [16,17,18]; use as solid state lasers [19,20,21,22]; sensors [23]; non-linear effects [24] and holograms for data storage [25]. Using laser dyes in xerogel matrices where a controllable level of multiple scattering has been introduced is sure to be a fruitful model system for a variety random laser studies.…”

Section: Introductionmentioning

confidence: 99%

Controllable transport mean free path of light in xerogel matrixes embedded with polystyrene spheres

Bret¹,

Couto²,

Amaro³

et al. 2009

Opt. Express

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Xerogel matrices, made by sol-gel techniques, are embedded with polystyrene spheres to promote multiple scattering of light. Varying the concentration of the spheres inside the matrix allows one to adjust the transport mean free path of light inside the material. Coherent backscattering measurements show that a range of transport mean free paths from 90 to 600 nm is easily achieved. The determination of the matrix refractive index permits a direct comparison to multiple scattering and Mie theory. Such tunable diffusive sol-gel derived samples can be further optimized as random laser materials.

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“…Routinely, however, polymerization of GPTMS is carried out by a sol-gel process which leads to the formation of PSSQO structures with pendant, unreacted epoxy functionalities that are prone to later, eventual curing (4). O/I hybrid materials based on GPTMS have several important applications, including antiscratch coatings (8), contact lens materials (9), passivation layers for microelectronics (10), multifunctional coatings (11), and optical devices (12)(13)(14). GPTMS-based optical waveguides, in particular, are very promising materials because of the possibility to incorporate optically active organic molecules in a matrix that is dense at low temperature and with a high degree of microstructural homogeneity (15,16).…”

Section: Introductionmentioning

confidence: 99%