Publications by authors named "Ilaria Cacciari"

4 Publications

  • Page 1 of 1

Terahertz Time-Domain Reconstruction of Coating Microstratigraphy on Gilded Surfaces.

Materials (Basel) 2019 Nov 21;12(23). Epub 2019 Nov 21.

Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, v. M. del Piano 10, 50019 Sesto Fiorentino (FI), Italy.

Here, a systematic study in order to assess the potential of THz time domain reflectometry for measuring the thicknesses of overpaint layers applied on original gilded surfaces was carried out. The work is part of a thorough characterization campaign, which is going on at the Rijksmuseum for addressing the conservation problems of a set of 19th century gilded picture frames on which heavy coatings were applied in previous undocumented restoration interventions. To perform such non-invasive thickness measurements, an analytical protocol based on Gaussian fits of the THz pulse-echo temporal profiles was optimized through the preparation of suitable technical samples and the comparison with direct thickness measurements. Finally, the methodology was validated by characterizing the microstratigraphy of an original sculptural element from a gilded picture frame in the Rijksmuseum collection. The results achieved show the effectiveness of the present approach in revealing multi-layered dielectric microstructures with a spatial resolution of about 30 µm when using a spectral range up to 1.5 THz.
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http://dx.doi.org/10.3390/ma12233822DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6926600PMC
November 2019

Josephson junctions loaded by transmission lines: a revisited problem.

Phys Rev E Stat Nonlin Soft Matter Phys 2011 Nov 15;84(5 Pt 2):057601. Epub 2011 Nov 15.

Istituto di Fisica Applicata Nello Carrara del Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Firenze, Italy.

The problem of evaluating dissipative effects in Josephson junctions loaded by transmission lines is reexamined, for either the symmetric or the asymmetric case, with particular consideration of the time domain in which the interaction between junction and load system occurs.
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http://dx.doi.org/10.1103/PhysRevE.84.057601DOI Listing
November 2011

Reexamination of Josephson junctions coupled to transmission lines.

Phys Rev E Stat Nonlin Soft Matter Phys 2008 May 13;77(5 Pt 2):057601. Epub 2008 May 13.

Istituto di Fisica Applicata "Nello Carrara" del Consiglio Nazionale delle Ricerche, via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy.

The effect of dissipation when due to the load of a transmission line coupled to a Josephson junction is reconsidered and evaluated by means of a simple direct procedure that supplies analytical expressions. The results are in good agreement with the ones previously reported in the literature. A simple criterion for testing experimental results is introduced.
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http://dx.doi.org/10.1103/PhysRevE.77.057601DOI Listing
May 2008

Tunneling in frustrated total internal reflection: a comparison of different approaches.

Phys Rev E Stat Nonlin Soft Matter Phys 2007 Oct 31;76(4 Pt 2):047601. Epub 2007 Oct 31.

Istituto di Fisica Applicata Nello Carrara del Consiglio Nazionale delle Ricerche, via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy.

Tunneling processes in frustrated total internal reflection are reexamined in order to compare the results already obtained from adopting a procedure based on a transition-element analysis with those recently reported on the basis of a statistical method applied to a Brownian-like motion. A close agreement between the two approaches can be established, at optical and microwave scales, when suitable values of the involved parameters are adopted.
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http://dx.doi.org/10.1103/PhysRevE.76.047601DOI Listing
October 2007