CINECA IRIS Institutional Research Information System
IRIS è la soluzione IT che facilita la raccolta e la gestione dei dati relativi alle attività e ai prodotti della ricerca. Fornisce a ricercatori, amministratori e valutatori gli strumenti per monitorare i risultati della ricerca, aumentarne la visibilità e allocare in modo efficace le risorse disponibili.
EnglishPhotochromism and photoinduced optical anisotropy have been studied for a chiral comb-like liquid crystalline copolymer containing azobenzene chromophores in its side chains. In a smectic glass phase of the polymer, upon irradiation by UV light, long living cis-isomers are observed. Spin coated films, irradiated by linearly polarized light manifest a photo-induced anisotropy, related to a strong stable dichroism, which is due to an enrichment and depletion of the chosen angular direction, correspondingly, with trans- and cis-isomers of azobenzene chromophores. These films are shown to be a novel medium for image recording, sensitive to UV light. In particular, a holographic grating may be recorded on top of a hidden UV image by interfering beams of visible Ar-laser light. Therefore, a stable holographic pattern of an image recorded by incoherent UV light is produced. It can be erased and recorded again.
Reversible UV image recording on a photochromic side chain liquid crystalline polymer / Blinov, Lm; Barberi, Riccardo Cristoforo; Cipparrone, Gabriella; Kozlovsky, Mv; Lazarev, Vv; Ozaki, M; DE SANTO, Maria Penelope; Scaramuzza, Nicola; Yoshino, K.. - In: MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY. SECTION A, MOLECULAR CRYSTALS AND LIQUID CRYSTALS. - ISSN 1058-725X. - 355(2001), pp. 359-380.
Scheda prodotto non validato
Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo
| Titolo: | Reversible UV image recording on a photochromic side chain liquid crystalline polymer |
| Autori: | |
| Data di pubblicazione: | 2001 |
| Rivista: | |
| Citazione: | Reversible UV image recording on a photochromic side chain liquid crystalline polymer / Blinov, Lm; Barberi, Riccardo Cristoforo; Cipparrone, Gabriella; Kozlovsky, Mv; Lazarev, Vv; Ozaki, M; DE SANTO, Maria Penelope; Scaramuzza, Nicola; Yoshino, K.. - In: MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY. SECTION A, MOLECULAR CRYSTALS AND LIQUID CRYSTALS. - ISSN 1058-725X. - 355(2001), pp. 359-380. |
| Handle: | http://hdl.handle.net/20.500.11770/124709 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
http://hdl.handle.net/20.500.11770/124709
Copyright © 2020