Generation of an ultrastable 578 nm laser for Yb lattice clock

In this paper we described the development and the characterization of a 578 nm laser source to be the clock laser for an Ytterbium Lattice Optical clock. Two independent laser sources have been realized and the characterization of the stability with a beat note technique is presente

La traduzione di Barezzo Barezzi del Poema trágico del español Gerardo, y desengaño del amor lascivo, di Don Gonzalo de Céspedes y Meneses

Nel quadro della ricerca PRIN 2008 “L’officina di Barezzo Barezzi: un laboratorio di mediazione culturale fra la Spagna e l’Italia nella Venezia del primo Seicento”, mi propongo di esaminare la traduzione italiana, realizzata da Barezzo Barezzi, dell’opera di Gonzalo Céspedes y Meneses intitolata Poema trágico del español Gerardo, y desengaño del amor lascivo, la cui prima parte viene pubblicata a Madrid nel 1615, poi ristampata nel 1618 assieme alla seconda parte. Barezzi tradusse solo la prima parte dell’opera e la pubblicò a Venezia nel 1630. Attraverso un confronto tra le edizioni spagnole anteriori al 1630, si intende risalire a quella su cui il Barezzi ha, più probabilmente, lavorato, per poi passare ad esaminare le caratteristiche di questa traduzione, verificandone la collocazione tra le altre traduzioni barezziane, che ebbero, in gran parte, come oggetto i romanzi picareschi del Siglo de Oro. In the framework of the PRIN 2008 research project “Barezzo Barezzi’s workshop: an example of cultural mediation between Spain and Italy in the beginning of XVII century Venice”, I aim to examine the Italian translation by Barezzo Barezzi of Gonzalo Céspedes y Meneses’s novel, Poema trágico del español Gerardo, y desengaño del amor lascivo: the first part was published in Madrid in 1615, and it was then reprinted in 1618, with the second part. Barezzi translated only the first part of this work and published it in Venice in 1630. Through the comparison among the Spanish editions issued prior to 1630, we will try to identify on which edition Barezzi supposedly worked on, and, therefore, we will examine the characteristics of this translation, verifying its relation with the other translations that Barezzi realized, which were, for the most part, picaresque novels of the Spanish Golden Age

Preliminary results of the Italian neutron experimental station INES at ISIS: Archaeometric applications

The INES project was sponsored by the CNR Neutron Spectroscopy Advisory Committee, stressing the importance of realizing an Italian Neutron Experimental Station (INES) at the world most powerful pulsed neutron source (ISIS, Rutherford Appleton Laboratory, UK) and evidencing the strategic value that such a test station would assume in the field of applied sciences like, for example, chemistry, material science, Earth science, crystallography, and last, but not least, in the field of science applied to the study of cultural-heritage artifacts

Preliminary results of the Italian neutron experimental station INES at ISIS: Archaeometric applications

The INES project was sponsored by the CNR Neutron Spectroscopy Advisory Committee, stressing the importance of realizing an Italian Neutron Experimental Station (INES) at the world most powerful pulsed neutron source (ISIS, Rutherford Appleton Laboratory, UK) and evidencing the strategic value that such a test station would assume in the field of applied sciences like, for example, chemistry, material science, Earth science, crystallography, and last, but not least, in the field of science applied to the study of cultural-heritage artifacts

Realization of an Ultrastable 578-nm Laser for an Yb Lattice Clock

In this paper, we describe the development of an ultrastable laser source at 578 nm, realized using frequency sum generation. This source will be used to excite the clock transition 1S0-3P0 in an ytterbium optical lattice clock experiment. Two independent ultrastable lasers have been realized, and the laser frequency noise and stability have been characterize

Revealing the secrets of composite helmets of ancient Japanese tradition

n/

Optical properties of high quality Cu2ZnSnSe4 thin films

Cu2ZnSnSe4 thin films, fabricated on bare or molybdenum coated glass substrates by magnetron sputtering and selenisation, were studied by a range of techniques. Photoluminescence spectra reveal an excitonic peak and two phonon replicas of a donor-acceptor pair (DAP) recombination. Its acceptor and donor ionisation energies are 27 and 7 meV, respectively. This demonstrates that high-quality Cu2ZnSnSe4 thin films can be fabricated. An experimental value for the longitudinal optical phonon energy of 28 meV was estimated. The band gap energy of 1.01 eV at room temperature was determined using optical absorption spectr