Dr. Roberto Zamboni Profile

Dr. Roberto Zamboni

at ISOF

SPIE Involvement:

Conference Program Committee | Conference Chair | Editor | Author

Proceedings Article | 9 March 2020 Presentation

Astrocyte sensitivity to pulsed infrared light: molecular, physiological, and mechanistic insights (Conference Presentation)

Wilson Adams, Ana Borrachero-Conejo, Emanuela Saracino, Manqing Wang, Tamara Posati, Graham Throckmorton, John Logan Jenkins, Jeremy Ford, Roberto Zamboni, Marco Caprini, Grazia Paola Nicchia, E. Duco Jansen, Valentina Benfenati, Anita Mahadevan-Jansen

Proceedings Volume 11227, 112270N (2020) https://doi.org/10.1117/12.2545237

KEYWORDS: Infrared radiation, Infrared imaging, Thermography, Brain, Calcium, Receptors, Luminescence, Proteins, In vitro testing, Short wave infrared radiation

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Proceedings Article | 14 March 2018 Presentation

Excitability of astrocyte in vitro with infrared neural stimulation (Conference Presentation)

Wilson Adams, Manqing Wang, Ana Borrachero-Conejo, Emanuela Saracino, Roberto Zamboni, Valentina Benfenati, E. Duco Jansen, Anita Mahadevan-Jansen

Proceedings Volume 10482, 104820D (2018) https://doi.org/10.1117/12.2291246

KEYWORDS: Infrared imaging, Infrared radiation, Calcium, Transient nonlinear optics, Brain, Thermography, In vivo imaging, In vitro testing, Modulation, Neurophotonics

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Proceedings Article | 2 October 2009 Open Access

Very low amplified spontaneous emission threshold from a molecular host-guest energy transfer system and electroluminescence from light-emitting diode structure

Stefano Toffanin, Raffaella Capelli, Gianluca Generali, Tsyr-Yuan Hwu, Ken-Tsung Wong, Roberto Zamboni, Michele Muccini

Proceedings Volume 7487, 748703 (2009) https://doi.org/10.1117/12.833639

KEYWORDS: Molecules, Energy transfer, Thin films, Organic light emitting diodes, Electroluminescence, Absorption, Molecular energy transfer, Luminescence, Quantum efficiency, Excitons

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Proceedings Article | 21 October 2008 Paper

OLET architectures for electrically-pumped organic lasers

R. Zamboni, R. Capelli, S. Toffanin, M. Murgia, M. Först, M. Muccini

Proceedings Volume 7118, 71180C (2008) https://doi.org/10.1117/12.800603

KEYWORDS: Organic light emitting transistors, Electroluminescence, Heterojunctions, Excitons, Organic light emitting diodes, Electrodes, Interfaces, Transistors, Organic semiconductors, Metals

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Proceedings Article | 26 April 2006 Paper

Degradation of organic light-emitting diode

S. Caria, R. Zamboni, M. Murgia, P. Melpignano, V. Biondo, L. Aballe, A. Barinov, S. Gardonio, L. Gregoratti, M. Kiskinova

Proceedings Volume 6192, 61922D (2006) https://doi.org/10.1117/12.663649

KEYWORDS: Organic light emitting diodes, Aluminum, Photons, X-rays, X-ray microscopy, Spatial resolution, Electrons, Microscopes, Chemical analysis, Microscopy

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Proceedings Article | 4 April 2005 Paper

Oriented conjugated polymer thin films for all optical switching applications

Ileana Rau, Pierre-Alain Chollet, Francois Kajzar, Roberto Zamboni

Proceedings Volume 5724, (2005) https://doi.org/10.1117/12.590415

KEYWORDS: Polymers, Thin films, Polymer thin films, Refractive index, Nonlinear optics, Absorption, Birefringence, Refraction, Switching, Dichroic materials

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Proceedings Article | 8 September 2004 Paper

Flexible microstructured organic light sources for automotive applications

Patrizia Melpignano, Sabino Sinesi, A. Baron Toaldo, Viviana Biondo, Michele Muccini, Roberto Zamboni, Michael Gale, Susanne Westenhofer

Proceedings Volume 5464, (2004) https://doi.org/10.1117/12.548969

KEYWORDS: Organic light emitting diodes, Light sources, OLED lighting, Lenses, Fiber optic illuminators, Ultraviolet radiation, Light, Thin films, Micro optics, Refractive index

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Proceedings Article | 8 September 2004 Paper

Photonic engineering of nonlinear-optical properties of hybrid materials for efficient ultrafast optical switching (PHOENIX)

Jan Niehusmann, Peter Bolivar, Thorsten Wahlbrink, Rainer Mahrt, Nikolaj Moll, Roberto Zamboni, Michele Muccini, Francois Kajzar

Proceedings Volume 5464, (2004) https://doi.org/10.1117/12.548975

KEYWORDS: Resonators, Waveguides, Silicon, Switching, Refractive index, Ultrafast phenomena, Optical switching, Organic materials, Manufacturing, Chemical elements

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Proceedings Article | 16 December 1996 Paper

Optical properties of fullerene-based heteromultilayers grown by molecular beam deposition

Roberto Zamboni, Michele Muccini, O. Kapousta, Mauro Murgia, F. Abbate, Eugenio Lunedei, Carlo Taliani, Francois Kajzar

Proceedings Volume 2854, (1996) https://doi.org/10.1117/12.262988

KEYWORDS: Multilayers, Molecules, Interfaces, Luminescence, Optical properties, Molecular beams, Absorption, Fullerenes, Chlorine, Energy efficiency

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Proceedings Article | 8 December 1995 Paper

Optical absorption and photoluminescence in crystalline C60

Michele Muccini, H. Schlaich, Jochen Feldmann, Heinz Baessler, Ernst Goebel, Roberto Zamboni, Carlo Taliani, J. Erxmeyer, Alois Weidinger

Proceedings Volume 2530, (1995) https://doi.org/10.1117/12.228120

KEYWORDS: Crystals, Absorption, Luminescence, Molecules, Spectroscopy, Crystal optics, Excitons, Nonlinear optics, Solids, Helium

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Proceedings Article | 8 December 1995 Paper

Validity of the essential states model in fullerenes

Roberto Zamboni, Carlo Taliani, Francois Kajzar, Marianna Fanti, Giorgio Orlandi, Francesco Zerbetto

Proceedings Volume 2530, (1995) https://doi.org/10.1117/12.228115

KEYWORDS: Fullerenes, Data modeling, Thin films, Harmonic generation, Dispersion, Nonlinear optics, Carbon, Systems modeling, Optical pumping, Raman spectroscopy

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Proceedings Article | 28 November 1994 Paper

Nonlinear spectroscopy of C60 single crystal

Roberto Zamboni, Michele Muccini, R. Danieli, Carlo Taliani, H. Mohn, W. Muller, Hans-Ulrich ter Meer

Proceedings Volume 2284, (1994) https://doi.org/10.1117/12.196122

KEYWORDS: Crystals, Fullerenes, Excitons, Photonic crystals, Photonics, Molecules, Nonlinear crystals, Luminescence, Spectroscopy, Solids

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Proceedings Article | 28 November 1994 Paper

Third-order nonlinear optical properties of fullerenes

Francois Kajzar, Carlo Taliani, Michele Muccini, Roberto Zamboni, S. Rossini, R. Danieli

Proceedings Volume 2284, (1994) https://doi.org/10.1117/12.196136

KEYWORDS: Thin films, Fullerenes, Molecules, Photonics, Silica, Harmonic generation, Absorption, Ions, Dispersion, Polymers

Proceedings Article | 23 September 1994 Paper

Location of charged states in alpha-sexithienyl thin films from electro-absorption spectroscopy

Roberto Zamboni, Lev Blinov, G. Ruani, Carlo Taliani, S. Palto, A. Tevosov, S. Yudin

Proceedings Volume 2285, (1994) https://doi.org/10.1117/12.187517

KEYWORDS: Absorption, Excitons, Thin films, Polarization, Spectroscopy, Polarizability, Crystals, Molecules, Solids, Oscillators

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Proceedings Article | 16 December 1993 Paper

Nonlinear optical properties of fullerenes

Francois Kajzar, Carlo Taliani, Roberto Zamboni, S. Rossini, R. Danieli

Proceedings Volume 2025, (1993) https://doi.org/10.1117/12.165272

KEYWORDS: Thin films, Harmonic generation, Molecules, Silica, Second-harmonic generation, Fullerenes, Absorption, Signal detection, Dispersion, Data modeling

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Interest in organic materials for applications in photonics is based mainly on their fast, electronic in origin, and large nonlinear optical response which is due to the large hyperpolarizability of delocalized ii electrons. On the other hand the organic materials are characterized by some interesting physico— chemical properties, such as: processability, versatility and good optical quality. They are also expected to integrate well with semiconductor technolo gy. Quasi one dimensional conjugated polymers like polydiacetylenes, polyacetylene and polythiophenes [1] are indeed characterized by a large nonlinear optical response and fast response time, but on the other hand it is difficult to obtain good optical quality, stable thin films of these materials. Polydiacetylenes are of repute for their excellent crystallinity, which leads to unwanted light scattering, and consequently to large propagation losses. Polyacetylenes are know to be unstable in air.On the other hand these po— lymers are characterized by a residual absorption in the near infrared due to overtones of C-H and 0-H stretching vibrations. Consequently it limits interest of their application in the interesting for practical purposes (telecommunication window) operation wavelength range. For these reasons the fullurenes in general, and C in particular are interesting materials for applica— tions in photonics because of lack of the low energy stretching vibrations. Moreover, the electronic bands in C are narrower [21 than in conjugated po lymers, where they are broadened due to conformations and conjugation length distribution. Consequently one expects the resonances to be narrower too. Large nonlinear optical response in C6 has been reported by third harmo nic generation in thin films [31 and in solution[4] as well as by degenerate four wave mixing [51 in solution, differing by two to four orders of magnitude from the last determinations (cf. Table 1). All these measurements have been performed almost at one wavelength only (mostly 1.064 jim). Also very recently a significant second order nonlinear optical response from C6 thin films has been reported by Wang et al [6] by optical second har monic generation. This result is in contrast with what one could expect for presumably centrosymmetric thin films. In fact, no bulk quadratic susceptibility in these films should be observed, at least at dipolar approximation. A second order activity of C thin films has been also observed by Hoshi et al [3]. There is much less data on a higher fullerene which is C . The nonlinear 70 optical properties of this molecule have been studied almost in solution and at discrete wavelength (cf. Table 1). In this paper we report the results of a systematic study of nonlinear optical properties of C60 thin films by optical third (THG) and second (SHG) harmonic generation techniques. The THG measurements have been done as a function of fundamental wavelength. The tecique allows a precise determination of the electronic cubic susceptibility x (-3w;w,w,w) and to learn more about the electronic structure of these materials. In fact, this technique gives not only the magnitude of the nonlinear susceptibility, but when done as a function of fundamental wavelength, allows also to locate the allowed and forbidden for one photon transition excited states. The SHG measurements have been performed at 1.064 im funcnental wavelength leading to the determination of quadratic susceptibility x (-2w;w,w).

Showing 5 of 15 publications

SPIE Conference Volume | 17 October 2023

Advanced Materials, Biomaterials, and Manufacturing Technologies for Security and Defence

SPIE Conference Volume | 7 December 2022

Emerging Imaging and Sensing Technologies for Security and Defence VII

SPIE Conference Volume | 14 October 2020

Emerging Imaging and Sensing Technologies for Security and Defence V; and Advanced Manufacturing Technologies for Micro- and Nanosystems in Security and Defence III

SPIE Conference Volume | 5 November 2019

Optical Materials and Biomaterials in Security and Defence Systems Technology XVI

SPIE Conference Volume | 21 November 2018

Optical Materials and Biomaterials in Security and Defence Systems Technology XV

Showing 5 of 14 publications

Conference Committee Involvement (30)

Organic Photonic Materials and Devices XXVII

25 January 2025 | San Francisco, California, United States

Advanced Materials, Biomaterials, and Manufacturing Technologies for Security and Defence II

16 September 2024 | Edinburgh, United Kingdom

Organic Photonic Materials and Devices XXVI

31 January 2024 | San Francisco, California, United States

Advanced Materials, Biomaterials, and Manufacturing Technologies for Security and Defence

3 September 2023 | Amsterdam, Netherlands

Organic Photonic Materials and Devices XXV

1 February 2023 | San Francisco, California, United States

Emerging Imaging and Sensing Technologies for Security and Defence VII

5 September 2022 | Berlin, Germany

Organic Photonic Materials and Devices XXIV

26 January 2022 | San Francisco, California, United States

Organic Photonic Materials and Devices XXIII

6 March 2021 | Online Only, California, United States

Emerging Imaging and Sensing Technologies for Security and Defence V; Advanced Manufacturing Technologies for Micro- and Nanosystems in Security and Defence III

21 September 2020 | Online Only, United Kingdom

Organic Photonic Materials and Devices XXII

5 February 2020 | San Francisco, California, United States

Optical Materials and Biomaterials in Security and Defence Systems Technology XVI

12 September 2019 | Strasbourg, France

Organic Photonic Materials and Devices XXI

5 February 2019 | San Francisco, California, United States

Optical Materials and Biomaterials in Security and Defence Systems Technology

10 September 2018 | Berlin, Germany

Organic Photonic Materials and Devices XX

31 January 2018 | San Francisco, California, United States

Optical Materials and Biomaterials in Security and Defence Systems Technology

11 September 2017 | Warsaw, Poland

Organic Photonic Materials and Devices XIX

30 January 2017 | San Francisco, California, United States

Optical Materials and Biomaterials in Security and Defence Systems Technology

28 September 2016 | Edinburgh, United Kingdom

Organic Photonic Materials and Devices XVIII

15 February 2016 | San Francisco, California, United States

Optical Materials and Biomaterials in Security and Defence Systems Technology

23 September 2015 | Toulouse, France

Organic Photonic Materials and Devices XVII

9 February 2015 | San Francisco, California, United States

Optical Materials and Biomaterials in Security and Defence Systems Technology

22 September 2014 | Amsterdam, Netherlands

Organic Photonic Materials and Devices XVI

3 February 2014 | San Francisco, California, United States

Optical Materials and Biomaterials in Security and Defence Systems Technology X

25 September 2013 | Dresden, Germany

Organic Photonic Materials and Devices XV

4 February 2013 | San Francisco, California, United States

Optical Materials and Biomaterials in Security and Defence Systems Technology

26 September 2012 | Edinburgh, United Kingdom

Organic Photonic Materials and Devices XIV

23 January 2012 | San Francisco, California, United States

Optical Materials in Defence Systems Technology

19 September 2011 | Prague, Czech Republic

Nanobiosystems: Processing, Characterization, and Applications IV

21 August 2011 | San Diego, California, United States

Optical Materials in Defence Systems Technology

23 September 2010 | Toulouse, France

Optical Materials in Defence Systems Technology

31 August 2009 | Berlin, Germany

Showing 5 of 30 Conference Committees

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