Vertical profiles of environmental parameters measured on discrete water samples collected with Niskin bottles during the Tara Oceans expedition 2009-2013

The present data publication provides permanent links to original and updated versions of validated data files. The data files include properties of seawater, particulate matter and dissolved matter that were measured from discrete water samples collected with Niskin bottles during the 2009-2013 Tara Oceans expedition. Properties include pigment concentrations from HPLC analysis (10 depths per vertical profile, 25 pigments per depth), the carbonate system (Surface and 400m; pH (total scale), CO2, pCO2, fCO2, HCO3, CO3, Total alkalinity, Total carbon, OmegaAragonite, OmegaCalcite, and dosage Flags), nutrients (10 depths per vertical profile; NO2, PO4, N02/NO3, SI, quality Flags), DOC, CDOM, and dissolved oxygen isotopes. The Service National d'Analyse des Paramètres Océaniques du CO2, at the Université Pierre et Marie Curie, determined CT and AT potentiometrically (Edmond 1970; DOE 1994) on samples preserved according to Dickson et al. (2007). More than 250 vertical profiles of these properties were made across the world ocean. DOC, CDOM and dissolved oxygen isotopes are available only for the Arctic Ocean and Arctic Seas (2013).

Les missionnaires de 93,

Mode of access: Internet.

Tratado de lanas /

Mode of access: Internet.

Compendiosa demostracion de los crecidos adelantamientos, que pudiera lograr la Real Hacienda de su Magestad mediante la rebaja en el precio del azogue, que se consume para el laborio de las minas de este Reyno, ó del aumento tan considerable, que se avia de experimentar en el producto annual de sus reales rentas, en beneficio no menos grande, que universal de esta mineria, de ambos comercios, y por consiguiente de todo el comun de la Republica ... /

Mode of access: Internet.

Traité de mathématiques générales : a l'usage des chimistes, physiciens, ingénieurs et des élèves des facultés des sciences /

Mode of access: Internet.

Campagne de l'armée d'Italie, 1796-1797 /

"Les Tomes I et II ont paru en 1900 sous le titre 'Histoire de l'armée d'Italie'."--Catalogue général de la Librairie Française, t.18, 1908.

Problèmes de mecanique rationnelle. A l'usage des candidats aux certificats de licence et a l'agrégation.

At head of title: E. Fabry.

Itinéraire de Buonaparte de l'île d'Elbe à l'île Sainte-Hélène, ou, Mémoires pour servir à l'histoire des événemens de 1815 : avec le recueil des principales pièces officielles de cette époque /

Mode of access: Internet.

Mémoires du Cardinal de Retz,

Mode of access: Internet.

La régence à Blois, ou Le derniers momens du gouvernement impérial.

Mode of access: Internet.

Formal opening the new Michigan Stadium Ann Arbor

View from the south of the stadium during the Ohio State-Michigan game. On image: KAUFMANN & FABRY CO. COMMERCIAL PHOTOGRAPHERS 425 South Wabash Ave. CHICAGO TELEPHONE HARRISON 3135 MOST THOROUGHLY EQUIPPED PHOTOGRAPHIC PLANT IN AMERICA. Verso: Rotary Club of Chicago 10/25/27

Entangled two-photon source using biexciton emission of an asymmetric quantum dot in a cavity

A semiconductor based scheme has been proposed for generating entangled photon pairs from the radiative decay of an electrically pumped biexciton in a quantum dot. Symmetric dots produce polarization entanglement, but experimentally realized asymmetric dots produce photons entangled in both polarization and frequency. In this work, we investigate the possibility of erasing the “which-path” information contained in the frequencies of the photons produced by asymmetric quantum dots to recover polarization-entangled photons. We consider a biexciton with nondegenerate intermediate excitonic states in a leaky optical cavity with pairs of degenerate cavity modes close to the nondegenerate exciton transition frequencies. An open quantum system approach is used to compute the polarization entanglement of the two-photon state after it escapes from the cavity, measured by the visibility of two-photon interference fringes. We explicitly relate the two-photon visibility to the degree of the Bell-inequality violation, deriving a threshold at which Bell-inequality violations will be observed. Our results show that an ideal cavity will produce maximally polarization-entangled photon pairs, and even a nonideal cavity will produce partially entangled photon pairs capable of violating a Bell-inequality.

Quantum gate based on Stark tunable nanocrystal interactions with ultrahigh-Q/V field modes in fused silica microcavities

We investigate the use of nanocrystal quantum dots as a quantum bus element for preparing various quantum resources for use in photonic quantum technologies. Using the Stark-tuning property of nanocrystal quantum dots as well as the biexciton transition, we demonstrate a photonic controlled-NOT (CNOT) interaction between two logical photonic qubits comprising two cavity field modes each. We find the CNOT interaction to be a robust generator of photonic Bell states, even with relatively large biexciton losses. These results are discussed in light of the current state of the art of both microcavity fabrication and recent advances in nanocrystal quantum dot technology. Overall, we find that such a scheme should be feasible in the near future with appropriate refinements to both nanocrystal fabrication technology and microcavity design. Such a gate could serve as an active element in photonic-based quantum technologies.

COMMAD 04 proceedings

The following topics were dealt with: semiconductor growth (MBE, PECVD, MOCVD, MOVPE) and characterizations; high-electron mobility transistors (HEMTs); microcavity organic light emitting diode (MOLED); semiconductor superlattices; photodiode arrays; MEMS structures; lithography;semiconductor lasers; semiconductor optical amplifiers; surface treatment and annealing