Prof. Valerio Pruneri Profile

Prof. Valerio Pruneri

Group Leader at ICFO Institut de Ciències Fotòniques

SPIE Involvement:

Author | Student Chapter Advisor

Publications (26)

Proceedings Article | 18 June 2024 Presentation + Paper

Super-sensitive multipass phase imaging

Á. Cuevas, D. Tiemann, R. Camphausen, I. Cusini, A. Panzani, F. Villa, V. Pruneri

Proceedings Volume 12998, 129980O (2024) https://doi.org/10.1117/12.3017095

KEYWORDS: Photons, Phase imaging, Mirrors, Surface plasmons, Spatial resolution, Single photon avalanche diodes, Single mode fibers, Reflection, Quantum optics experiments, Quantum light

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Proceedings Article | 10 June 2024 Poster + Paper

Polarization entangled photon-pair source in a dual displacement interferometric configuration

Giacomo Paganini, Álvaro Cuevas, Robin Camphausen, Alexander Demuth, Valerio Pruneri

Proceedings Volume 12993, 129930I (2024) https://doi.org/10.1117/12.3017509

KEYWORDS: Quantum entanglement, Polarization, Surface plasmons, Photon polarization, Design, Visibility, Interferometry, Crystals, Quantum technologies, Nonlinear crystals

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Proceedings Article | 30 November 2023 Paper

Real-time entangled photon-pair imaging towards field deployment

Robin Camphausen, Álvaro Cuevas, Alexander Demuth, Iris Cusini, Francesca Madonini, Federica Villa, Alessandro Ruggeri, Adrià Sansa Perna, Markus Gräfe, Fabian Steinlechner, Valerio Pruneri

Proceedings Volume 12795, 1279502 (2023) https://doi.org/10.1117/12.2691076

KEYWORDS: Quantum entanglement, Cameras, Single photon avalanche diodes, Quantum imaging, Point spread functions, Visibility, Imaging systems, Quantum interference, Quantum detection, Quantum correlations

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Proceedings Article | 3 October 2023 Poster + Paper

Undetected photon interference measurements on a silicon chip

Chiara Michelini, Stefano Signorini, Valerio Pruneri, Lorenzo Pavesi

Proceedings Volume 12692, 126920F (2023) https://doi.org/10.1117/12.2676372

KEYWORDS: Quantum interference, Silicon, Quantum entanglement, Photonic integrated circuits, Four wave mixing, Quantum sources

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Proceedings Article | 16 August 2023 Presentation

Lens-free holographic imager with ultrahigh phase sensitivity and large field-of-view

Sebastian Haegele, Giacomo Corrielli, Matěj Hejda, Luc Dümpelmann, Roland Terborg, Roberto Osellame, Valerio Pruneri

Proceedings Volume 12618, 1261810 (2023) https://doi.org/10.1117/12.2673873

KEYWORDS: Imaging systems, Holography, Holograms, Refractive index, Phase imaging, Optical path differences, Signal intensity, Shearing interferometers, Semiconductors, Resolution enhancement technologies

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Proceedings Article | 18 April 2021 Presentation

Graphene gas sensor with mid-infrared plasmons tuned by reversible chemical doping

Nestor Jr. Bareza, Bruno Paulillo, Kavitha Gopalan, Rose Alani, Valerio Pruneri

Proceedings Volume 11772, 117720W (2021) https://doi.org/10.1117/12.2588924

KEYWORDS: Graphene, Doping, Plasmons, Polymers, Mid-IR, Gas sensors, Sensors, Plasmonics, Carbon dioxide, Absorption

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Proceedings Article | 5 March 2021 Presentation

Plasmonic mid-IR gas sensing using graphene and related materials

Bruno Paulillo, Nestor Jr. Bareza, Irene Dolado, Marta Autore, Kavitha Gopalan, Rose Alani, Rainer Hillenbrand, Valerio Pruneri

Proceedings Volume 11690, 116900A (2021) https://doi.org/10.1117/12.2577468

KEYWORDS: Graphene, Mid-IR, Plasmonics, Nanostructures, Carbon dioxide, Molecules, Atmospheric optics, Adsorption, Surface plasmons, Resonance enhancement

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Proceedings Article | 3 September 2019 Presentation + Paper

Quantum imaging for enhanced microscopy and light modulation

Álvaro Cuevas, Robin Camphausen, Valerio Pruneri

Proceedings Volume 11091, 110910P (2019) https://doi.org/10.1117/12.2531014

KEYWORDS: Photons, Microscopy, Modulation, Sensors, Signal to noise ratio, Image processing, Laser beam diagnostics, Digital image correlation, Quantum efficiency, Charge-coupled devices

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Proceedings Article | 22 July 2019 Paper

Label-free, scalable and point-of-care imaging platform for rapid analysis of biomarker

Luc Duempelmann, Roland Terborg, Josselin Pello, Ilaria Mannelli, Filiz Yesilkoy, Alexander Belushkin, Yasaman Jahani, Nuria Fabri-Faja, Priyanka Dey, Olalla Calvo-Lozano, M.-Carmen Estevez, Anna Fàbrega, Juan J. González-López, Laura Lechuga, Hatice Altug, Valerio Pruneri

Proceedings Volume 11076, 1107619 (2019) https://doi.org/10.1117/12.2525878

KEYWORDS: Plasmonics, Point-of-care devices, Biological research, Proteins, Interferometry, Nanostructures, Bacteria, Microscopes, Cancer, Consumer electronics

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Proceedings Article | 18 September 2018 Presentation

Integrated quantum entropy sources (Conference Presentation)

Carlos Abellan, Waldimar Amaya, Domenico Tulli, Morgan Mitchell, Valerio Pruneri

Proceedings Volume 10733, 107330R (2018) https://doi.org/10.1117/12.2325758

KEYWORDS: Silicon photonics, Indium, Information security, Diffusion, Semiconductor lasers, Semiconductors

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Proceedings Article | 16 October 2017 Paper

Transparent and conductive backside coating of EUV lithography masks for ultra short pulse laser correction

Rinu Abraham Maniyara, Dhriti Sundar Ghosh, Valerio Pruneri

Proceedings Volume 10451, 104511S (2017) https://doi.org/10.1117/12.2280526

KEYWORDS: Coating, Photomasks, Chromium, Extreme ultraviolet, Nickel, Metals, Resistance, Multilayers, Electrodes, Extreme ultraviolet lithography

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Proceedings Article | 3 November 2016 Presentation

Complete optical absorption of ultrashort pulses by plasmons in nanostructured graphene (Conference Presentation)

José Ramón Martínez Saavedra, Giulio Cerullo, Valerio Pruneri, Simon Wall, Javier García de Abajo

Proceedings Volume 9932, 99320L (2016) https://doi.org/10.1117/12.2237992

KEYWORDS: Graphene, Plasmons, Absorption, Ultrafast phenomena, Optoelectronics, Nanostructuring, Modulation, Mid-IR

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The peculiar electronic structure of graphene results in a large optoelectronic response that holds great potential for technology. For example, this material exhibits a nearly constant absorption ~2.3% over a broad spectral range [1], which can be electrically modulated in the mid-IR by injecting attainable densities of charge carriers. When doped, graphene can sustain plasmons that radically modify its optical response, enabling complete optical absorption for suitably designed patterns [2]. Graphene nanoribbons constitute one of the simplest geometrical patterns that one can produce. They have been extensively studied and their plasmons accurately explained with simple models [3]. When heated to a large electronic temperature, graphene behaves nearly as if is was highly doped, also giving rise to plasmon modes [4]. In this work, we study the possibility of using ultrashort light pulses together with the natural electronic relaxation mechanisms in graphene nanoribbons as a way to tune their optical response. We first discuss the optically induced plasmons of individual nanoribbons when illuminated with ultrashort pulses and then analyze the evolution of the plasmon frequency as a function of the delay between pump and probe. We study the redshift of these plasmons with increasing delay due to electron relaxation. We also investigate the optical response of the ribbon exposed to a train of optical pulses. We further discuss ribbon arrays illuminated from the substrate under total internal reflection conditions, for which we predict complete absorption for a suitable choice of geometrical and illumination parameters. References [1] F. H. L. Koppens, D. E. Chang, and F. J. García de Abajo, Nano Letters 11, 3370-3377 (2011) [2] S. Thongrattanasiri, F. H. L. Koppens, and F. J. García de Abajo, Phys. Rev. Lett. 108, 047401 (2012) [3] I. Silveiro, J. M. Plaza Ortega, and F. J. García de Abajo, Light: Science and Applications 4, e241 (2015) [4] F. J. García de Abajo, ACS Photon. 1, 135 (2014).

Proceedings Article | 7 March 2014 Paper

Ultrathin metals and nano-structuring for photonic applications

Nadia Formica, Albert Carrilero, Tong Lai Chen, Dhriti Ghosh, Prantik Mazumder, Valerio Pruneri

Proceedings Volume 8982, 89820I (2014) https://doi.org/10.1117/12.2042060

KEYWORDS: Metals, Copper, Nickel, Electrodes, Tellurium, Transparency, Transmittance, Antireflective coatings, Remote sensing, Ultraviolet radiation

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SPIE Journal Paper | 23 March 2012 Open Access

Microstructured optical fiber interferometric breathing sensor

Fernando Fávero, Valerio Pruneri, Joel Villatoro

JBO, Vol. 17, Issue 03, 037006, (March 2012) https://doi.org/10.1117/12.10.1117/1.JBO.17.3.037006

KEYWORDS: Sensors, Interferometers, Interferometry, Cladding, Reflection, Single mode fibers, Structured optical fibers, Optical fibers, Fusion splicing, Fiber optics sensors

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Proceedings Article | 6 December 2011 Paper

Functional photonic crystal fiber sensing devices

Joel Villatoro, Vittoria Finazzi, Valerio Pruneri

Proceedings Volume 8307, 83071E (2011) https://doi.org/10.1117/12.902451

KEYWORDS: Sensors, Single mode fibers, Photonic crystal fibers, Fusion splicing, Refractive index, Interferometers, Optical fibers, Cladding, Reflection, Liquids

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Proceedings Article | 26 October 2011 Paper

High-visibility photonic crystal fiber interferometer for ultrasensitive refractometric sensing

Guillermo Cárdenas-Sevilla, Fernando Fávero, Vittoria Finazzi, Joel Villatoro, Valerio Pruneri

Proceedings Volume 8011, 80114K (2011) https://doi.org/10.1117/12.901942

KEYWORDS: Interferometers, Refractive index, Sensors, Optical fibers, Photonic crystal fibers, Cladding, Single mode fibers, Fiber optics sensors, Fusion splicing, Interferometry

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Proceedings Article | 18 May 2011 Paper

Performance of a high-temperature sensor based on regenerated fiber Bragg gratings

D. Barrera, V. Finazzi, J. Villatoro, S. Sales, V. Pruneri

Proceedings Volume 7753, 775381 (2011) https://doi.org/10.1117/12.885927

KEYWORDS: Sensors, Packaging, Fiber Bragg gratings, Ceramics, Metals, Fiber optics sensors, Annealing, Temperature metrology, Temperature sensors, Optical fibers

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Proceedings Article | 14 October 2010 Paper

Photonic-crystal and optical micro/nano fiber interferometric sensors

Joel Villatoro, Vittoria Finazzi, G. Cárdenas-Sevilla, Valerio Pruneri

Proceedings Volume 7839, 78390H (2010) https://doi.org/10.1117/12.868224

KEYWORDS: Interferometers, Microfluidics, Fiber optics sensors, Photonic crystal fibers, Sensors, Single mode fibers, Biosensing, Refractive index, Photonic microstructures, Interferometry

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Proceedings Article | 9 September 2010 Paper

Wavelength encoded fiber sensor for extreme temperature range

D. Barrera, V. Finazzi, G. Coviello, A. Bueno, S. Sales, V. Pruneri

Proceedings Volume 7653, 76530E (2010) https://doi.org/10.1117/12.866425

KEYWORDS: Fiber Bragg gratings, Temperature metrology, Sensors, Germanium, Fiber optics sensors, Refractive index, Modulation, Optical fibers, Annealing, Standards development

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Proceedings Article | 14 May 2010 Paper

Chemical composition gratings in Germanium doped and Boron-Germanium co-doped fibers

D. Barrera, V. Finazzi, G. Coviello, A. Bueno, S. Sales, V. Pruneri

Proceedings Volume 7726, 772607 (2010) https://doi.org/10.1117/12.854640

KEYWORDS: Fiber Bragg gratings, Optical fibers, Germanium, Refractive index, Modulation, Annealing, Standards development, Hydrogen, Temperature metrology, Telecommunications

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Proceedings Article | 14 May 2010 Paper

Evaluation of serial multiplexed photonic crystal fiber interferometric sensors

David Barrera, Joel Villatoro, Vittoria Finazzi, Salvador Sales, Valerio Pruneri

Proceedings Volume 7726, 77260S (2010) https://doi.org/10.1117/12.854630

KEYWORDS: Sensors, Interferometers, Multiplexing, Spatial frequencies, Fourier transforms, Interferometry, Photonic crystal fibers, Fiber optics sensors, Sensor networks, Intermodulation

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Proceedings Article | 5 October 2009 Paper

Highly versatile in-reflection photonic crystal fibre interferometer

Rajan Jha, Joel Villatoro, Mark Kreuzer, Vittoria Finazzi, Valerio Pruneri

Proceedings Volume 7503, 750356 (2009) https://doi.org/10.1117/12.835390

KEYWORDS: Interferometers, Refractive index, Photonic crystal fibers, Optical fibers, Single mode fibers, Cladding, Biosensing, Gases, Liquids, Fusion splicing

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Proceedings Article | 28 April 2009 Paper

High-sensitivity photonic crystal fiber interferometer for chemical vapors detection

Joel Villatoro, Mark Kreuzer, Rajan Jha, Vladimir Minkovich, Vittoria Finazzi, Gonçal Badenes, Valerio Pruneri

Proceedings Volume 7316, 73161A (2009) https://doi.org/10.1117/12.818265

KEYWORDS: Interferometers, Optical fibers, Photonic crystal fibers, Molecules, Liquids, Waveguides, Light emitting diodes, Refractive index, Spectroscopy, Gases

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Proceedings Article | 7 July 2005 Paper

Advanced electro-optical transmitters

Michele Belmonte, Stefano Balsamo, Simone Pensa, Daniel Pircalaboiu, Valerio Pruneri

Proceedings Volume 5840, (2005) https://doi.org/10.1117/12.608317

KEYWORDS: Modulators, Transmitters, Modulation, Dispersion, Electrodes, Eye, Optical fibers, Networks, Electro optics, Tolerancing

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Proceedings Article | 14 June 2004 Paper

Identification of LiNbO3 compositions with optimized functional properties for advanced electro-optical devices

Federico Caccavale, David Callejo, Costanza Dragoni, Alessandro Morbiato, Mario Musolino, Fabiana Cavuoti, Mario Dellagiovanna, Federico Lucchi, Valerio Pruneri, Pietro Galinetto, Daniela Grando, Cinzia Sada

Proceedings Volume 5350, (2004) https://doi.org/10.1117/12.532308

KEYWORDS: Crystals, Lithium, Raman spectroscopy, Diffusion, Electro optics, Absorption, Modulators, Ultraviolet radiation, Temperature metrology, Waveguides

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Proceedings Article | 18 June 2002 Paper

Poled glass compared to ferroelectrics for electro-optics and nonlinear frequency conversion in optical waveguides

Valerio Pruneri, Michele Belmonte

Proceedings Volume 4640, (2002) https://doi.org/10.1117/12.435129

KEYWORDS: Waveguides, Silica, Glasses, Frequency conversion, Electro optics, Switches, Second-harmonic generation, Modulation, Luminescence, Dispersion

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