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 SM ISO690:2012CHAPURIN, Igor, ROBU, Stephan V., ROTARI, Eugene, KORSHAK, Oleg, LESSARD, Roger A.. Development and characterization of negative photochromic compounds. In: Proceedings of SPIE - The International Society for Optical Engineering, Ed. 4, 21-25 ianuarie 2002, San Jose, California. Bellingham, Washington: SPIE, 2002, Ediția 4, Vol.4642, pp. 50-54. ISBN 0819443816. ISSN 0277-786X. DOI: https://doi.org/10.1117/12.470458 |
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 Proceedings of SPIE - The International Society for Optical Engineering Ediția 4, Vol.4642, 2002 |
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Conferința "Organic Photonic Materials and Devices" 4, San Jose, California, Statele Unite ale Americii, 21-25 ianuarie 2002 | |||||||
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| DOI:https://doi.org/10.1117/12.470458 | |||||||
| Pag. 50-54 | |||||||
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We report a new photochromic composite polymer that was evaluated in conjunction with its potential applications for optical holographic recording in the whole visible spectral range. It consists of poly-N-epoxypropylcarbazole (PEPC) polymeric matrix with a nitro-brome-substituted spiropyran (BNSP) photochromic dye. The PEPC+BNSP films can be considered as negative photochromic recording media. They are colored in the initial state and bleached upon irradiation within the whole visible spectra. When we placed the bleached samples to the darkness, they slowly revert to the colored form. The real-time holographic recording procedure in PEPC+BNSP films was studied. |
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| Cuvinte-cheie absorption spectra, diffraction efficiency, holography, Photochromic compounds, Polymers |
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