Second harmonic generation and photochromic grating in polyurethane films containing diazo isoxazole chromophore

TitreSecond harmonic generation and photochromic grating in polyurethane films containing diazo isoxazole chromophore
Type de publicationArticle de revue
AuteurMarański, Krzysztof, Kucharski, Stanislaw, Ortyl, Ewelina, Nunzi, Jean-Michel, Ahmadi-Kandjani, Sohrab, Dabos, Sylvie , Chan, Siu-Wai, Barille, Régis
EditeurElsevier
TypeArticle scientifique dans une revue à comité de lecture
Année2008
LangueAnglais
Date2008/08
Numéro12
Pagination1832 - 1839
Volume30
Titre de la revueOptical Materials
ISSN0925-3467
Mots-clésDiffraction grating, Nonlinear optics, Polyurethane polymer, Second harmonic generation
Résumé en anglais

The chromophoric intermediate: 2,2′-({4-[(E)-(5-methylisoxazol-3-yl)diazenyl]phenyl}-imino)diethanol was used in polyaddition reaction with di-isocyanate to obtain a new polyurethane polymeric material showing nonlinear optical and photochromic properties. The maximum absorption band of the polymer film was at 418 nm. The illumination of the film with crossed beams of the 488 nm Ar+ laser yielded surface relief grating of regular structure. Measurement of the frequency doubling signal with 1064 nm laser indicated the polymer as interesting material for photooptical applications. The measured nonlinear optical coefficient, d33, reached 90.2 pm/V.

URL de la noticehttp://okina.univ-angers.fr/publications/ua2055
DOI10.1016/j.optmat.2007.11.030
Lien vers le document

http://dx.doi.org/10.1016/j.optmat.2007.11.030