Nonlocal photopolymerization kinetics including multiple termination mechanisms and dark reactions Part I Modeling

Gleeson, Michael R.; Sheridan, John T.

doi:10.1364/josab.26.001736

Cited by 102 publications

(201 citation statements)

References 43 publications

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“…The fraction ⌿ differentiates between the concentration of 1 Dye * molecules generated and the concentration of the more stable ͑longer-lived͒ triplet state molecules, 3 Dye * , simultaneously generated.…”

Section: Photoinitiation Mechanism Analysismentioning

confidence: 99%

“…Since the primary radicals are generated in pairs, [2][3][4][5][6][7][8]16 the rate equation governing ͓ED͔ can be presented in the same fashion,…”

Section: Photoinitiation Mechanism Analysismentioning

confidence: 99%

“…͑a͒ The first is the initiation of the polymerization process in the presence of monomer, [1][2][3][4][5][6][7] ED…”

Section: Photoinitiation Mechanism Analysismentioning

confidence: 99%

“…[1][2][3][4] The resulting models attempt to take account of the effects of ͑i͒ the photon absorption, ͑ii͒ the regeneration or recovery of absorptive photosensitizer, and ͑iii͒ photosensitizer bleaching. In this paper, the photoinitiation mechanisms involved during holographic recording in a polyvinyl alcohol/acrylamide ͑PVA/AA͒ based photopolymer [5][6][7][8][9][10][11] is studied.…”

Section: Introductionmentioning

confidence: 99%

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Extended model of the photoinitiation mechanisms in photopolymer materials

Shui

Gleeson

Sabol

et al. 2009

Journal of Applied Physics

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In order to further improve photopolymer materials for applications such as data storage, a deeper understanding of the photochemical mechanisms which are present during the formation of holographic gratings has become ever more crucial. This is especially true of the photoinitiation processes, since holographic data storage requires multiple sequential short exposures. Previously, models describing the temporal variation in the photosensitizer (dye) concentration as a function of exposure have been presented and applied to two different types of photosensitizer, i.e., Methylene Blue and Erythrosine B, in a polyvinyl alcohol/acrylamide based photopolymer. These models include the effects of photosensitizer recovery and bleaching under certain limiting conditions. In this paper, based on a detailed study of the photochemical reactions, the previous models are further developed to more physically represent these effects. This enables a more accurate description of the time varying dye absorption, recovery, and bleaching, and therefore of the generation of primary radicals in photopolymers containing such dyes.

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Section: Photoinitiation Mechanism Analysismentioning

confidence: 99%

“…Since the primary radicals are generated in pairs, [2][3][4][5][6][7][8]16 the rate equation governing ͓ED͔ can be presented in the same fashion,…”

Section: Photoinitiation Mechanism Analysismentioning

confidence: 99%

“…͑a͒ The first is the initiation of the polymerization process in the presence of monomer, [1][2][3][4][5][6][7] ED…”

Section: Photoinitiation Mechanism Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Extended model of the photoinitiation mechanisms in photopolymer materials

Shui

Gleeson

Sabol

et al. 2009

Journal of Applied Physics

Self Cite

View full text Add to dashboard Cite

show abstract

“…Photopolymerization achieved through laser direct-writing exhibits a non-local behavior, in that the induced material modification is not limited to the area exposed to the laser beam [14]. The firstharmonic diffusion model demonstrated by Gallego et al estimates Contents lists available at ScienceDirect journal homepage: www.elsevier.com/locate/optcom Optics Communications the performance of holographic gratings fabricated in photopolymer materials with respect to the thickness of the polymer film layer [15].…”

Section: Properties Of Photopolymer Gratingsmentioning

confidence: 99%