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Claude Germain

University of Paris

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Featured researches published by Claude Germain.

Molecular Crystals and Liquid Crystals | 1996

ON THE NATURE OF PHOTOINDUCED OPTICAL ANISOTROPY IN DIACETYLENE LANGMUIR-BLODGETT FILMS

S. P. Palto; Jacques Malthête; Claude Germain; G. Durand

Abstract For the first time photoinduced molecular reorientation has been observed in diacetylene Langmuir-Blodgett films. The compound does not show photochemical reactions of trans-cis isomerisation, and the observed phenomenon of photoinduced optical anisotropy (POA) cannot be associated with photoinduced trans-cis transitions as it is usually considered in viscous dye solutions and polymer films. A change in an interaction energy for excited molecules and local recrystallization as possible reasons of the photoinduced molecular reorientation are discussed.

Journal De Physique | 1983

Two new mesophases in a chiral compound

Anne-Marie Levelut; Claude Germain; P. Keller; Lionel Liebert; J. Billard

Journal De Physique Ii | 1995

Photoinduced optical anisotropy in Langmuir Blodgett films as a new method of creating bistable anchoring surfaces for liquid crystal orientation

S.P. Palto; S. G. Yudin; Claude Germain; G. Durand

Journal De Physique Ii | 1993

Structural and electro-optical studies of the smectic polymorphism of a homologous series of chiral molecules

Patrick Hamelin; Anne-Marie Levelut; Philippe Martinot-Lagarde; Claude Germain; Lionel Liebert

Tetrahedron Letters | 1970

Une synthese directe des indole-carboxamides-3 : nouvel acces aux derives de la gramine

Jacques Bourdais; Claude Germain

Journal of Heterocyclic Chemistry | 1976

Synthèses d'indoles par cyclisation réductrice. II Nouvelle mélhode de synthèse des indole carboxamides-3, donnant accés aux dérivés de la gramine†

Claude Germain; J. Bourdais

Journal De Physique | 1989

Smectic A-Smectic B interface : faceting and surface free energy measurement

P. Oswald; F. Melo; Claude Germain

Archive | 1992

DAILY TRANSPORTATION IN FRANCE: LOGISTIC INTERACTIONS..

Claude Germain; Patrick Hamelin; Patrick Nierat

Archive | 1987

Optische fluessigkristallvorrichtungen, welche hochfrequenz-anregungen ermoeglichen. Optical fluessigkristallvorrichtungen, which allow high frequency excitations.

Claude Germain; Marguerite Boix; G. Durand; Philippe Martinot-Lagarde

Archive | 1987

Optische Flüssigkristallvorrichtungen, welche Hochfrequenz-Anregungen ermöglichen

Claude Germain; Marguerite Boix; G. Durand; Philippe Martinot-Lagarde

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G. Durand

University of Paris

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Philippe Martinot-Lagarde

University of Paris

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Marguerite Boix

Centre national de la recherche scientifique

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Jacques Bourdais

University of Paris-Sud

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Anne-Marie Levelut

University of Paris

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Lionel Liebert

University of Paris

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Patrick Hamelin

University of Paris

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Mohamed Monkade

Centre national de la recherche scientifique

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F. Melo

École normale supérieure de Lyon

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J. Billard

Collège de France

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