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

Extended model of the photoinitiation mechanisms in photopolymer materials

“…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.…”

“…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,…”

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

“…[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.…”

A fiber-integrated optical component fabricated via photopolymerization: Mode-selective grating coupler

“…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].…”