Photochemistry and Photophysics in Phenyloxazolones

Smokal, Vitaliy; Krupka, Oksana; Kolendo, A.

doi:10.1109/ictonmw.2008.4773117

Cited by 1 publication

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References 11 publications

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“…Within the last decade various types of nonlinear optical (NLO) polymers were synthesized and functionalized with different active chromophores grafted in their side chain: polymethylmethacrylates, polyalkylviniletheres, polystyrenes, polyimides, polyacrylamides and many more [1][2][3]. The photochemical properties of such polymers can be advantageously addressed for photonics and nonlinear optics applications [4][5][6][7]. In addition, the spatial organization of the active side chain residues along the polymeric backbone is of critical importance regarding mechanical and structural properties of the material.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and functionalization of coumarin-containing copolymers for second order optical nonlinearities

et al. 2013

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The second-order nonlinear optical properties of photocross-linkable coumarin-based copolymers were investigated using the optical second harmonic generation (SHG) with the Maker fringes technique. High quality and transparent spin-deposited thin films of various methacrylic copolymers containing 4-methylcoumarin pendant chromophores were prepared and the coumarin units were ordered and oriented by the corona poling technique. Nonlinear optical investigations were performed using a picosecond Qswitched Nd:YAG laser working at the fundamental wavelength (k = 1064 nm) and the second order nonlinear optical susceptibilities of the functionalized polymers were determined. The samples were irradiated using two wavelengths (k = 254 nm and k > 300 nm) promoting the reversible photo-induced dimerisation of coumarin moieties within the film. The latter is shown to have a significant impact on the nonlinear optical response of the corresponding material. A large SHG response of photocross-linkable coumarin-based copolymers is obtained.

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