Dr. Maria Antonietta Ferrara
National Research Council (CNR), Institute of Applied Sciences and Intelligent Systems
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Academic Career Length
22Years (2005-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications1 December 2020 in Journal of Optics
Journal Article
John SheridanRKRaymond K Kostuk
Raymond K Kostuk
AGAntonio Fimia Gil
Antonio Fimia Gil
YWY Wang
Y Wang
WLW Lu
W Lu
KSK Saravanamuttu
K Saravanamuttu
+49
30 July 2014 in PLOS ONE
Journal Article
Maria Antonietta Ferrara
Principia Dardano
Luca De Stefano
Ilaria Rea
Giuseppe Coppola
Edoardo De Tommasi +4
Some natural structures show three-dimensional morphologies on the micro- and nano- scale, characterized by levels of symmetry and complexity well far beyond those fabricated by best technologies available. This is the case of diatoms, unicellular microalgae, whose protoplasm is enclosed in a nanoporous microshell, made of hydrogenated amorphous silica, called frustule. We have studied the optical properties of Arachnoidiscus sp. single valves both in visible and ultraviolet range. We found photonic effects due to diffraction by ordered pattern of pores and slits, accordingly to an elaborated theoretical model. For the first time, we experimentally revealed spatial separation of focused light in different spots, which could be the basis of a micro-bio-spectrometer. Characterization of such intricate structures can be of great inspiration for photonic devices of next generation.
1 January 2012 in Nature Communications
Journal Article
LSLuigi Sirleto
Luigi SirletoMaria Antonietta FerraraTNTimur Nikitin
Timur NikitinSNSergei Novikov
Sergei Novikov
LKLeonid Khriachtchev
Leonid KhriachtchevNanostructured silicon has generated a lot of interest in the past decades as a key material for silicon-based photonics. The low absorption coefficient makes silicon nanocrystals attractive as an active medium in waveguide structures, and their third-order nonlinear optical properties are crucial for the development of next generation nonlinear photonic devices. Here we report the first observation of stimulated Raman scattering in silicon nanocrystals embedded in a silica matrix under non-resonant excitation at infrared wavelengths (~1.5 μm). Raman gain is directly measured as a function of the silicon content. A giant Raman gain from the silicon nanocrystals is obtained that is up to four orders of magnitude greater than in crystalline silicon. These results demonstrate the first Raman amplifier based on silicon nanocrystals in a silica matrix, thus opening new perspectives for the realization of more efficient Raman lasers with ultra-small sizes, which would increase the synergy between electronic and photonic devices.
Journal Article
LSLuigi Sirleto
Luigi SirletoMaria Antonietta FerraraNowadays, in fiber optic communications the growing demand in terms of transmission capacity has been fulfilling the entire spectral band of the erbium-doped fiber amplifiers (EDFAs). This dramatic increase in bandwidth rules out the use of EDFAs, leaving fiber Raman amplifiers (FRAs) as the key devices for future amplification requirements. On the other hand, in the field of high-power fiber lasers, a very attractive option is provided by fiber Raman lasers (FRLs), due to their high output power, high efficiency and broad gain bandwidth, covering almost the entire near-infrared region. This paper reviews the challenges, achievements and perspectives of both fiber Raman amplifier and fiber Raman laser. They are enabling technologies for implementation of high-capacity optical communication systems and for the realization of high power fiber lasers, respectively.
9 December 2014 in Journal of Biophotonics
Journal Article
GCGiuseppe Di Caprio
Giuseppe Di CaprioMaria Antonietta FerraraLMLisa Miccio
Lisa MiccioFMFrancesco Merola
Francesco Merola
PMPasquale Memmolo
Pasquale MemmoloGiuseppe Coppola +1
24 March 2017 in Advances in Optics and Photonics
Journal Article
LSLuigi Sirleto
Luigi SirletoAVAlessandro Vergara
Alessandro Vergara
Maria Antonietta FerraraStimulated Raman scattering is essentially a “light amplification,” and some of the most important applications are light amplifiers and laser sources. Important achievements have been obtained in the fields of fiber amplification and integrated photonics. However, photonics components, currently used in optical interconnects, are relatively large and not ideally suited to on-chip integration. A reduction in the size of integrated optical devices, while maintaining a high level of performance, is a key challenge in photonics. On this line of argument, the ability to construct nano-objects is expected to have a significant impact in the future, leading to the development of fully functional nanodevices, such as nanoscale optical sources. The aim of this work is to review accomplishments in the field of stimulated Raman scattering in nanostructures, to delineate the state of the art, and to identify the emerging trends and remaining challenges.
About Me
Maria Antonietta Ferrara received an M.S. degree in Electronic Engineering from the University of Naples Federico II, Italy, in 2003 and a Ph.D. degree in Electronic Engineering with a thesis from the University “Mediterranea” of Reggio Calabria, Italy, in 2008. Since 2008, she has been a postdoctoral fellow at the Institute for Microelectronics and Microsystems, Naples, where she has carried out research with the themes of “advanced optoelectronic devices and integrated sources based on nonlinear Raman scattering” and “non-contact optical characterization based on interferometric techniques”. In 2012, she became a researcher at the Institute for Microelectronics and Microsystems, and since 2019, she has been affiliated with the Institute of Applied Sciences and Intelligent Systems of the National Research Council of Italy. Her research interests are in the fields of digital holography, volume holographic optical elements, nonlinear optics, and coherent Raman spectroscopy and microscopy. She is the author of more than 90 peer-reviewed scientific papers published in indexed journals, five book chapters, and is the holder of several patents.