Study of free radicals in poly(diethylene glycol bis(allyl carbonate)) irradiated by γ rays

Autor: Jean-Louis Decossas, Jean-Claude Vareille, Claire Darraud-Taupiac, Jaromir Stejny

Publikováno v: Polymer. 36:3251-3254

Free radicals in poly(diethylene glycol bis(allyl carbonate)), commercially known as CR-39 resin, cured by radical mechanism with various amounts of diisopropyl peroxydicarbonate were studied by electron paramagnetic resonance (e.p.r.) spectroscopy.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0308853c8ea38d7e303b5114fe9f7908
https://doi.org/10.1016/0032-3861(95)99422-q

Micro-Raman spectroscopy investigation of the electron beam irradiation of LiNbO3 surface for 2D photonic band gap grating inscription

Autor: M.R. Beghoul, Claire Darraud, Paul Moretti, Benoît Fougère, A. Boudrioua, R. Kremer, Marc D. Fontana, J.C. Vareille

Publikováno v: Optical Materials
Optical Materials, Elsevier, 2008, 31 (2), pp.136-142
Optical Materials, Elsevier, 2008, 31, pp.136-142
Optical Materials, Elsevier, 2008, 31, pp.136-142. ⟨10.1016/j.optmat.2008.02.002⟩

We report the investigation of the physical phenomena which occur in LiNbO3 during its surface irradiation by electron beam (EB) in order to fabricate 2D photonic band gap (PBG) grating. In order to better understand the mechanism of unusual holes fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::914a65c48d5d001aedf94b191d36fbad
https://hal.archives-ouvertes.fr/hal-00327230

Submicrometer scale growth morphology control : a new route for the making of photonic crystral structures ?

Autor: Olivier Parriaux, Alberto Pimpinelli, Agnès Trassoudaine, E. Gil-Lafon, Claire Darraud, Dominique Castelluci, Rachida Saoudi, Alain Muravaud

Publikováno v: Proceedings of SPIE, the International Society for Optical Engineering
Proceedings of SPIE, the International Society for Optical Engineering, 2004, pp.5250. ⟨10.1117/12.513376⟩
Proceedings of SPIE, the International Society for Optical Engineering, SPIE, The International Society for Optical Engineering, 2004, pp.5250. ⟨10.1117/12.513376⟩

The feasibility of micrometer scale morphologically controlled 1D stripe arrays by selective hydride vapour phase epitaxy (HVPE) single step was assessed. HVPE is a near-equilibrium growth process which offers perfect selectivity whatever the pattern

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::826e699d5d75407c8ca782234985e681
https://hal.science/hal-00272536

Direct writing of optical waveguides on PADC substrate by e-beam

Autor: Claire Darraud-Taupiac, Isabelle Niort, J.-Louis Decossas, T. Daoud, J.-C. Vareille

Publikováno v: SPIE Proceedings.

Polymers such as PMMA, PADC (commercially named CR39), BCB .. . under irradiation (gamma rays, ion beam. ..) have been widely studied. It has been shown that they undergo physical and particularly optical change. In the case of ion beam, an optical w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c101de438d5c03f1f931993a5b9ef336
https://doi.org/10.1117/12.406296

Fabrication and characterization of implanted polymer waveguides

Autor: J.-C. Vareille, Claire Darraud-Taupiac, J.-Louis Decossas

Publikováno v: SPIE Proceedings.

Polymeric materials such as poly[diethylene glycol bis(allyl carbonate)], simply called CR-39, subjected to (gamma) -rays or ion beams (H, He, Li...) undergo structural, physical and chemical modifications. In the case of ion beam, these modification

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4b7d48cbfd8aaea82c8187b5f45352ef
https://doi.org/10.1117/12.201985