[PDF] Top 20 Two-wavelength holographic recording in thick phenanthrenequinone-doped poly(methyl methacrylate) photopolymer

... studied in this work were prepared by two-step thermo-polymerization ...shown in Ref. 7) indicates two charac- teristic absorption peaks of the PQ molecules in the spectral range ... See full document

... polarization holographic recording in phenanthrenequinone-doped poly (methyl methacrylate) photo- polymer is ...birefringence in a 2 mm thick sample is measured by ... See full document

... of holographic reconstruction on the polarization states of the writing and reading beams is ...of recording polarization holograms in thick phenanthrenequinone-doped ... See full document

... 160.5470. Holographic data-storage systems with high storage capacity, high data-readout rate, high image quality, and low bit-error rate have been proposed and demon- ...location in a recording ... See full document

... image. In order to determine the upper limit for a single expo- sure time, we have performed an experiment to quantify the scattering ...that, in order to avoid the buildup of the strong scattering of the ... See full document

... the holographic recording ...a two-step procedure that can synthesize bulk samples with satisfactory optical ...on photopolymer characteris- tics. A comparison of the recording ... See full document

... The in fluence of the concentration of thermo-initiator, AIBN Another issue has to be examined is the concentration of thermo-initiator, AIBN, because it affects the degree of polymer- ization of the sample and ... See full document

... taken in the form of one PQ molecule to one MMA molecule bonding struc- ...the photopolymer can be changed via photo-induced chemical ...the photopolymer samples after light exposure are ...groups ... See full document

... red-light holographic recording that was originally insensitive in thick phenanthrenequinone/poly(methyl methacrylate) photopolymer to have reasonable ...43% in a ... See full document

... the two curve. In this case, it is at grey level of ...hand, in this aspect, since material scattering comes from non-homogeneity of the refractive index, our technique of pre-polymerization dur- ing ... See full document

... PMMA/PQ photopolymer. Investigations show that the PMMA/PQ/DMNA photopolymer had greatest holographic characteristics than pNA and MNA ...superior holographic re- cording ...light. In ... See full document

... changes in the refractive index and birefrin- gence of PQ-doped PMMA can be measured by PEM ellipsometry and polarimetry in real ...1.487. In addition, at a total exposure energy density of ... See full document

... monomers in a polymeric film. A number of photopolymer materials for holographic applications have been developed since the first holographic photopolymer was reported in ...volume ... See full document

... effect in the recording process. In addition, to improve the sensitivity, radical and cationic photopolymerization with different additives and photosensitizers has been applied to speed up the ... See full document

... efficiency, photopolymer materials have recently been attractive candidates of recording media for holographic data ...1 In our laboratory, we have investigated on the syntheses and analysis ... See full document

... fixing in these materials. A typical technique for hologram fixing in photopolymers is UV curing, which requires post processing after the holograms have been ...holograms in real time named ... See full document

... 3 Holographic Characterizations 3.1 Holographic Recording in the Samples To test the hologram recording capability of our photopoly- mer samples, we have recorded a plane-wave hologram ... See full document

... (WORM) holographic recording materials due to their advantageous properties of self-development, high sensitiv- ity, and large modulation depth of the refractive ...of holographic materials have been ... See full document

... (WORM) holographic recording materials due to their advantageous properties of self-development, high sensitiv- ity, and large modulation depth of the refractive ...of holographic materials have been ... See full document

... In making the PQIPMMA samples, the host polymer matrix PMMA is formed during the material preparation such that only a few percentage of un-reacted MMA monomer molecules are left for opt[r] ... See full document