Femtosecond laser induced photoluminescence in poly(methyl methacrylate) and three-dimensional optical storage

Nie, Zhaogang; Lim, Kyo‐Sun Sunny; Lee, Heungyeol; Lee, Myeongkyu; Kabayashi, T

doi:10.1016/j.jlumin.2010.10.009

Cited by 11 publications

(2 citation statements)

References 25 publications

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“…The photoluminescence of PMMA was also observed by Morantz et al . [ 16 ]. This luminescence is usually assigned to unsaturated aldehyde or ketone groups undergoing n -π* transitions.…”

Section: Resultsmentioning

confidence: 99%

“…PMMA is strong, light, and transparent to light with wavelengths below ~300 nm. While ideal perfectly polymerized PMMA should not have any substantial luminescence, it is well known that unsaturated ketone/aldehyde groups do form in PMMA and can act as optical centers at 2.9 eV [ 15 , 16 ]. PMMA’s properties are well understood and easily modified by doping with various copolymers and dye molecules.…”

Section: Introductionmentioning

confidence: 99%

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Luminescent Properties of Surface Functionalized BaTiO3 Embedded in Poly(methyl methacrylate)

2014

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As-received BaTiO3 nanopowders of average grain sizes 50 nm and 100 nm were functionalized by (3-aminopropyl)triethoxysilane (APTES) and mixed with poly(methyl methacrylate)/toluene solution. The nanocomposite solution was spin coated on Si substrates to form thin films. The photoluminescence spectrum of the pure powder was composed of a bandgap emission at 3.0 eV and multiple bands centered about 2.5 eV. Surface functionalization of the BaTiO3 powder via APTES increases overall luminescence at room temperature while only enhancing bandgap emission at low-temperature. Polymer coating of the functionalized nanoparticles significantly enhances bandgap emissions while decreasing emissions associated with near-surface lattice distortions at 2.5 eV.

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“…The photoluminescence of PMMA was also observed by Morantz et al . [ 16 ]. This luminescence is usually assigned to unsaturated aldehyde or ketone groups undergoing n -π* transitions.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%