Nanoscale displacement sensing based on nonlinear frequency mixing in quantum cascade lasers

Autor: Mezzapesa, F. P., Columbo, L. L., De Risi, G., Brambilla, M., Dabbicco, M., Spagnolo, V., Scamarcio, G.

We demonstrate a sensor scheme for nanoscale target displacement that relies on a single Quantum Cascade Laser (QCL) subject to optical feedback. The system combines the inherent sensitivity of QCLs to optical re-injection and their ultra-stability i

Externí odkaz: http://arxiv.org/abs/1505.00027

Comparison of plane mirror vs retroreflector performance for laser-self-mixing displacement sensors

Autor: Ottonelli S., De Lucia F., di Vietro M., Dabbicco M., Scamarcio G.

Publikováno v: Journal of the European Optical Society-Rapid Publications, Vol 4, p 09036 (2009)

The behavior of a displacement optical sensor based on the Laser-Self-Mixing effect employing a plane mirror (PT) and a solid corner-cube (CC) as moving target is analyzed. The performance of the sensor is compared in terms of simplification of the o

Externí odkaz: https://doaj.org/article/c2c15f0716b342139d91bcaf1959f25e

Role of chi((3)) anisotropy in the generation of squeezed light in semiconductors

Autor: Dabbicco, M., A. Mark Fox, Vonplessen, G., Ryan, Jf

Publikováno v: ResearcherID

We have measured the real n2 and imaginary β parts of the χ(3) nonlinear susceptibility in polycrystalline ZnS and ZnSe and its anisotropy σ in cubic ZnSe near half-band-gap using femtosecond spectroscopy. We obtain values in good agreement with r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::a30d85fc9bc94d0b62233a8ab403ad84
https://ora.ox.ac.uk/objects/uuid:af0f7c68-3ef9-4388-920f-13c71600a034

Erratum: Imaging of free carriers in semiconductors via optical feedback in terahertz quantum cascade lasers (Applied Physics Letters (2014) 104 (041112))

Autor: Mezzapesa F.P., Columbo L.L., Brambilla M., Dabbicco M., Vitiello M.S., Scamarcio G.

Publikováno v: Applied physics letters 106 (2015). doi:10.1063/1.4905450
info:cnr-pdr/source/autori:Mezzapesa F.P.; Columbo L.L.; Brambilla M.; Dabbicco M.; Vitiello M.S.; Scamarcio G./titolo:Erratum: Imaging of free carriers in semiconductors via optical feedback in terahertz quantum cascade lasers (Applied Physics Letters (2014) 104 (041112))/doi:10.1063%2F1.4905450/rivista:Applied physics letters/anno:2015/pagina_da:/pagina_a:/intervallo_pagine:/volume:106

To monitor the density of photo-generated charge carriers on a semiconductor surface, we demonstrate a detectorless imaging system based on the analysis of the optical feedback in terahertz quantum cascade lasers. Photo-excited free electron carriers

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=cnr_________::90cedc6bfae15bba56e712dca987af2b
https://publications.cnr.it/doc/351558

Direct in-situ measurement of the ablation rate in short pulse laser percussion drilling of metal targets

Autor: Mezzapesa F.P., Ancona A., Sibillano T., Di Niso F., De Lucia F., Dabbicco M., Lugarà P.M., Scamarcio G.

Publikováno v: 30th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2011, pp. 982–986, Orlando, FL; United States, 23-27 October 2011
info:cnr-pdr/source/autori:Mezzapesa F.P., Ancona A., Sibillano T., Di Niso F., De Lucia F., Dabbicco M., Lugarà P.M., Scamarcio G./congresso_nome:30th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2011/congresso_luogo:Orlando, FL; United States/congresso_data:23-27 October 2011/anno:2011/pagina_da:982/pagina_a:986/intervallo_pagine:982–986

We demonstrate that a non-invasive sensing technique based on optical feedback interferometry is capable to instantaneously measure the ablation front displacement and the removal rate during ultrafast laser percussion drilling of metallic plates. Th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=cnr_________::7d8fcffc976459413b735b957fd117e5
http://www.scopus.com/inward/record.url?eid=2-s2.0-82655177587&partnerID=40&md5=d4fce24b731f7311f60de478954130ac