Christian Derouet's Books

This book presents a study of Juan Gris and Cubism. It is published to coincide with an exhibition at the Whitechapel Art Gallery in London on 18th September.

The possibility of stimulated light emission was discussed by Einstein in 1917, eight years before the quantum-mechanical description of energy levels of many-electron systems. Though it is imperative to use samples having optical properties greatly different from the stan dard continuous spectrum of opaque objects ("black body" radia tion) it is not always necessary to restrict the study to monatomic entities. Thus, spectral lines can be obtained (in absorption and in emission) from lanthanide compounds, containing from one to thir teen 4f electrons going from trivalent cerium to ytterbium, that are nearly as sharp as the ones from gaseous atoms. However, the presence of adjacent atoms modifies the simple picture of an isolated electron configuration, and in particular, it is possible to pump excited levels efficiently by energy transfer from species with intense absorption bands, such as the inter-shell transitions of other lanthanides and of thallium(I), lead(II) and bismuth(III) or the electron transfer bands of the uranyl ion or other complexes. On the other hand, it is possible to diminuish the mUlti-phonon relaxation (competing with sharp line luminescence) by selecting vitreous or crystalline materials with low phonon energies. Obviously, one cannot circumvent the conservation of energy by lasers, but they may have unprecedented consequences for the future by allowing nuclear fusion of light elements, effects of non-linear optics and time-resolved spectroscopy, besides the more conventional applications of coherent light beams with negligible angular extension.

Featuring a broad selection of paintings, sculptures and photographs coming mainly from the Centre Pompidou collections, Louvre Abu Dhabi’s exhibition catalogue “Rendezvous in Paris: Picasso, Chagall, Modigliani & Co.” focuses on this highly distinctive period in French art when young painters, sculptors and photographers flocked to early-20th-century Paris from all over the world to make a decisive contribution to the city’s art scene. Most notably from Germany, Spain, Italy, the Netherlands, Russia and even Japan, these formally inventive artists – Constantin Brancusi, Marc Chagall, Kees van Dongen, Tsuguharu Foujita, Amedeo Modigliani and Pablo Picasso among them – who would later become known as the “School of Paris”, rivalled the greatest French artists of the time.

Published on the occasion of the exhibition Fernand Leger and the Modern City, Philadelphia Museum of Art, October 14, 2013-January 5, 2014.

This book presents a study of Juan Gris and Cubism. It is published to coincide with an exhibition at the Whitechapel Art Gallery in London on 18th September.

Book's by Christian Derouet

Juan Gris

Juan Gris

Lasers and Excited States of Rare Earths

Lasers and Excited States of Rare Earths

Rendezvous in Paris

Rendezvous in Paris

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Juan Gris

Juan Gris

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