Dr. Pier J. A. Sazio Profile

Dr. Pier J. A. Sazio

at Univ of Southampton

SPIE Involvement:

Author

Proceedings Article | 30 May 2022 Presentation

Functionalised optical fiber devices for nonlinear photonics: from high harmonics generation to frequency comb

Francesco De Lucia, Nico Englebert, Francois Leo, Pier Sazio, Adam Lewis, Rex Bannerman, James Gates, Gilberto Brambilla

Proceedings Volume PC12142, PC121420D (2022) https://doi.org/10.1117/12.2620972

KEYWORDS: Optical fibers, Frequency combs, Photonics, Nonlinear optics, High harmonic generation, Thermal effects, Nonlinear crystals, Materials processing, Laser damage threshold, Glasses

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Proceedings Article | 30 May 2022 Presentation

Composite material glass photonics: from 2D materials to catalysts inside active optical fibres

Pier J. Sazio, Francesco De Lucia, Adam Lewis, Walter Belardi, Matthew Potter, Robert Raja, Daniel Hewak

Proceedings Volume PC12142, PC121420E (2022) https://doi.org/10.1117/12.2626344

KEYWORDS: Optical fibers, Glasses, Composites, Photonics, Structured optical fibers, Silica, Waveguides, Water splitting, Titanium dioxide, Silicon

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Proceedings Article | 3 March 2020 Presentation + Paper

Photonic glass ceramics based on SnO2 nanocrystals: advances and perspectives

Lam Thi Ngoc Tran, Cristina Armellini, Rolindes Balda, Mourad Benabdesselam, Simone Berneschi, Wilfried Blanc, Brigitte Boulard, Alessandro Carpentiero, Andrea Chiappini, Alessandro Chiasera, Paola Dentella, Dominik Dorosz, Shane Eaton, Mario Christian Falconi, Joaquin Fernandez, Maurizio Ferrari, James Gates, Pawel Gluchowski, Gloria Ischia, Anna Lukowiak, Franck Mady, Damiano Massella, Gualtiero Nunzi Conti, Francesco Prudenzano, Barbara Rossi, Roberta Ramponi, Giancarlo Righini, Pier-John Sazio, Giorgio Speranza, Stefano Varas, Daniele Zonta, Lidia Zur

Proceedings Volume 11276, 1127614 (2020) https://doi.org/10.1117/12.2547526

KEYWORDS: Nanocrystals, Erbium, Sol-gels, Planar waveguides, Absorption, Ions, Photonic glasses, Luminescence, Glasses, Ultraviolet radiation

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Proceedings Article | 3 March 2020 Presentation + Paper

Composite material hollow core anti-resonant fiber electromodulators: exploring the optical FET response

Adam Lewis, Francesco De Lucia, Walter Belardi, Chung-Che Huang, John Hayes, Francesco Poletti, Dan Hewak, Pier J. Sazio

Proceedings Volume 11276, 1127608 (2020) https://doi.org/10.1117/12.2544650

KEYWORDS: Raman spectroscopy, Molybdenum, Cladding, Composites, Waveguides, Modulation, Silicon, Field effect transistors, Electro optics, Deposition processes

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Proceedings Article | 18 February 2020 Paper

Enhancing the nonlinear functionality of step-index silica fibers through the combination of thermal poling and 2D materials

F. De Lucia, A. Lewis, R. H. Bannerman, N. Englebert, M. M. Nunez Velazquez, C.-C. Huang, J. Gates, S.-P. Gorza, J. Sahu, F. Leo, D. Hewak, P. J. Sazio

Proceedings Volume 11282, 1128212 (2020) https://doi.org/10.1117/12.2544140

KEYWORDS: Optical fibers, Cladding, Silica, Glasses, Molybdenum, Electrodes, Thermal effects, Nonlinear optics, Raman spectroscopy, Transition metals

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Thermal poling, a technique to create permanently effective second-order susceptibility in silica optical fibers, has recently been improved by the discovery of an “induction poling” technique¹ and the adoption of liquid electrodes², allowing for poling fibers of any length and geometry. Nevertheless, the nonlinearity created via thermal poling is always limited by the 𝜒⁽³⁾of the optical fiber material and by the maximum electric field that can be frozen inside the glass. For these reasons research is ongoing to determine routes for further improving the nonlinear effects due to the thermal poling process. In this work, we propose to enhance the effects of the thermal poling by exploiting the intrinsic nonlinear properties of some 2D materials³, which are deposited inside the cladding holes of a twin-hole silica fiber. The materials we focused on are 2D Transition Metal Chalcogenide (2D TMDC) MoS₂ and WS₂ and the technique adopted to realize the deposition inside the cladding channels of a twin-hole step index silica fiber consists of a thermal decomposition process4 of the precursor ammonium tetrathiomolybdate (NH4)2MoS⁴ in 6% H₂/Ar flow. The technique has allowed us to uniformly coat the two cladding channels for a length of ≈25 cm with a film nominally consisting in a bi-layer of the 2D materials. A Raman based analysis has been used to test the morphology of the coating. The fiber deposited with 2D materials was later thermally poled and periodically erased via exposure to UV light to reach the QPM condition at a wavelength of ≈1550 nm. The effective 𝜒⁽²⁾ of the fiber was measured via SHG for both the deposited and the pristine fiber, showing an enhancement of the nonlinearity in favor of the deposited one. The phenomenon can be explained by the exploitation of a higher 𝜒⁽³⁾ seen by the pump wave due to the presence of the 2D layer deposited inside the cladding holes and opens the possibility of exploiting the higher intrinsic material 𝜒⁽²⁾, in case of a periodic patterning/synthesis of the TMDC.

Proceedings Article | 27 February 2019 Presentation + Paper

SiO2-SnO2 transparent glass-ceramics activated by rare earth ions

Lidia Zur, Lam Thi Ngoc Tran, Damiano Massella, Alessandro Vaccari, Andrea Chiappini, Alessandro Chiasera, Stefano Varas, Cristina Armellini, Alessandro Carpentiero, Brigitte Boulard, Dominik Dorosz, Stefano Pelli, Cosimo Trono, Simone Berneschi, Gualtiero Nunzi Conti, James Gates, Pier-John Sazio, Barbara Rossi, Erica Iacob, Victor Micheli, Giorgio Speranza, Gloria Ischia, Francesco Prudenzano, Anna Lukowiak, Daniele Zonta, Roberta Ramponi, Giancarlo Righini, Maurizio Ferrari

Proceedings Volume 10914, 1091411 (2019) https://doi.org/10.1117/12.2507214

KEYWORDS: Rare earth doped glasses, Planar waveguides, Nanocrystals, Erbium, Crystals, Glasses, Photonics, Luminescence, Spectroscopy, Sol-gels

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Proceedings Article | 23 February 2018 Paper

Single is better than double: analysis of thermal poling configurations using 2D numerical modeling

F. De Lucia, P. J. Sazio

Proceedings Volume 10526, 105261X (2018) https://doi.org/10.1117/12.2288392

KEYWORDS: Electrodes, Sodium, Cladding, Optical fibers, Glasses, Numerical modeling, Numerical simulations, Interfaces, Diffusion, Microscopes

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Proceedings Article | 23 February 2018 Paper

Composite material hollow core fibers: functionalisation with silicon and 2D materials

A. Lewis, F. De Lucia, W. Belardi, F. Poletti, C. C. Huang, D. Hewak, P. J. Sazio

Proceedings Volume 10535, 105350N (2018) https://doi.org/10.1117/12.2289785

KEYWORDS: Optical fibers, Molybdenum, Refractive index, Composites, Silicon, Waveguides, Numerical simulations, Raman spectroscopy, Cladding, Electro optical modeling

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Proceedings Article | 27 April 2016 Paper

Four-wave mixing UV generation in optical microfibers

Muhammad I. M. Abdul Khudus, Francesco De Lucia, Costantino Corbari, Timothy Lee, Peter Horak, Pier Sazio, Gilberto Brambilla

Proceedings Volume 9894, 98941I (2016) https://doi.org/10.1117/12.2227585

KEYWORDS: Ultraviolet radiation, Ocean optics, Signal processing, Nonlinear optics, UV optics, Four wave mixing, Silica, Fiber amplifiers, Wave propagation, Dispersion, Phase matching, Ultraviolet radiation, UV optics, Optical fibers, Nonlinear dynamics, Oscillators, Optical amplifiers

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Proceedings Article | 4 March 2016 Paper

Numerical analysis using 2D modeling of optical fiber poled by induction

D. Huang, F. De Lucia, C. Corbari, N. Healy, P. Sazio

Proceedings Volume 9742, 97421O (2016) https://doi.org/10.1117/12.2211660

KEYWORDS: Optical fibers, Electrodes, Electro optical modeling, Instrument modeling, Optoelectronic devices, Numerical analysis, Thermal modeling, Waveguides, Silica, Frequency conversion, Statistical modeling, Liquids, Ions, Micro optical fluidics

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Proceedings Article | 20 February 2015 Paper

Templated growth of II-VI semiconductor optical fiber devices and steps towards infrared fiber lasers

Pier Sazio, Justin Sparks, Rongrui He, Mahesh Krishnamurthi, Thomas Fitzgibbons, Subhasis Chaudhuri, Neil Baril, Anna Peacock, Noel Healy, Venkatraman Gopalan, John Badding

Proceedings Volume 9342, 93420A (2015) https://doi.org/10.1117/12.2083045

KEYWORDS: Semiconductors, Optical fibers, Waveguides, Silica, Fiber lasers, Zinc, Micro optical fluidics, Surface roughness, Crystals, Capillaries

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Proceedings Article | 2 March 2007 Paper

Integrated optoelectronics in an optical fiber

J. Badding, P. Sazio, V. Gopalan, A. Amezcua Correa, T. Scheidemantel, C. Finlayson, N. Baril, B. Jackson, D. Wong

Proceedings Volume 6475, 64750N (2007) https://doi.org/10.1117/12.700725

KEYWORDS: Optical fibers, Silicon, Semiconductors, Optoelectronics, Germanium, Micro optical fluidics, Field effect transistors, Silica, Cladding, Structured optical fibers

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Proceedings Article | 18 October 2006 Paper

Surface enhanced Raman scattering using metal modified microstructured optical fiber substrates

Jixin Yang, Adrian Amezcua-Correa, Anna Peacock, Chris Finlayson, Jeremy Baumberg, Steven Howdle, Pier J. A. Sazio

Proceedings Volume 6369, 636906 (2006) https://doi.org/10.1117/12.692692

KEYWORDS: Optical fibers, Silver, Surface enhanced Raman spectroscopy, Micro optical fluidics, Nanoparticles, Raman spectroscopy, Metals, Raman scattering, Structured optical fibers, Capillaries

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Proceedings Article | 11 November 2005 Paper

Fabrication of extreme aspect ratio wires within photonic crystal fibers

J. Badding, P. Sazio, A. Amezcua Correa, T. Scheidemantel, C. Finlayson, N. Baril, D.-J. Won, H. Fang, B. Jackson, A. Borhan, V. Gopalan

Proceedings Volume 6005, 60050I (2005) https://doi.org/10.1117/12.632675

KEYWORDS: Micro optical fluidics, Silicon, Semiconductors, Capillaries, Germanium, Optical fibers, Silica, Deposition processes, Waveguides, Nanowires

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Showing 5 of 14 publications

Conference Committee Involvement (1)

Photonic Crystals and Photonic Crystal Fibers for Sensing Applications

24 October 2005 | Boston, MA, United States

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