Dominique Langevin

Dominique Anne-Marie Langevin , née Cruchon, (born July 24, 1947 in Angoulême ) is a French physicist.

Life

Dominique Langevin studied at the École normal supérieure (ENS) in Paris and did her PhD with Marie-Anne Bouchiat at the University of Paris VI and the ENS. At that time, she developed methods of investigating light scattering on liquid surfaces. Her dissertation dealt specifically with the surface of liquid crystals (determination of the angular orientation of the molecules on the surface) and she contributed to the elucidation of the previously neglected frequency dependence of the viscoelastic coefficients. As a post-doctoral student , she worked with Pierre Gilles de Gennes at the Collège de France in 1976/77 . There she and others demonstrated that the low surface tension in microemulsions in oil or water was due to a single-molecular layer of the surfactants. This led to the investigation of the liquid wetting transition and percolation in oil microemulsions. She founded a research group for liquid interfaces and surfaces and surfactants at the ENS in the 1970s. From 1969 to 1976 and 1977 to 1988 she was at the Laboratoire de Spectroscopie Hertzienne of the ENS (today Labor Kastler Brossel) and from 1988 to 1994 she was at the Laboratory for Statistical Physics of the ENS.

In the 1990s she headed a group called Films de tensioactifs flexibles . In 1992/93 she was President of the European Colloid & Interface Society (ECIS). From 1994 to 1997 she was director of the Center de Recherche Paul Pascal in Bordeaux, a research institute with a focus on colloid science, where she founded a group for liquids and surfaces. She is the research director of the CNRS and professor at the Laboratory for Solid State Physics at the University of Paris-South , where she has been since 1998.

Dominique Langevin dealt with liquid crystal surfaces, foams, emulsions and microemulsions, thin liquid films, soap bubbles, surface-active substances ( surfactants ), polymers and nanoparticles, rheology of surfaces with very low surface tension.

She received the Grand Prix of the Académie des Sciences (1991), the silver medal of the CNRS (2002), the Gentner-Kastler-Preis (2004), the Ostwald-Preis , the Kash Mittal Award, the Overbeek-Goldmedal of the European Colloid & Interface Society (2012) and the UNESCO L'Oréal Prize . In 2006 she became a Knight of the Legion of Honor . She is a member of the Academia Europaea .

In 1969 she married the mathematician Michel Langevin. She has four daughters.

Fonts

Dominique Langevin (Ed.): Light scattering by liquid surfaces and complementary techniques. New York: Dekker 1992.

Web links

Homepage Paris-South University (with detailed appreciation of your research)
Overbeek gold medal for Langevin
Entry at the Academia Europaea with a list of publications

Individual evidence

↑ Thèse de 3e cycle, Université Paris VI, 1969: Etude des ondes de capillarité excitées thermiquement à la surface d'un liquide pur , Thèse d'état, University Paris VI, 1974: Etude optique de la surface libre de liquides nématiques, d 'un interface nématique-isotrope et de films monomoléculaires. Analysis de l'intensité réfléchie et du specter de la lumière diffusée .

personal data
SURNAME	Langevin, Dominique
ALTERNATIVE NAMES	Langevin, Dominique Anne-Marie (full name); Cruchon, Dominique (maiden name)
BRIEF DESCRIPTION	French physicist
DATE OF BIRTH	July 24, 1947
PLACE OF BIRTH	Angoulême

[1] Thèse de 3e cycle, Université Paris VI, 1969: Etude des ondes de capillarité excitées thermiquement à la surface d'un liquide pur , Thèse d'état, University Paris VI, 1974: Etude optique de la surface libre de liquides nématiques, d 'un interface nématique-isotrope et de films monomoléculaires. Analysis de l'intensité réfléchie et du specter de la lumière diffusée .