Prof. Safi Jradi Profile

Prof. Safi Jradi

at Univ de Technologie de Troyes

SPIE Involvement:

Author

Publications (10)

Proceedings Article | 24 May 2022 Presentation

Smart photopolymer for advanced hybrid nanoplasmonics

Renaud Bachelot, Dandan G., Ali Issa, Safi Jradi, Christophe Couteau, Sylvie Marguet

Proceedings Volume PC12131, PC121310N (2022) https://doi.org/10.1117/12.2622308

KEYWORDS: Polymers, Plasmonics, Nanostructures, Nanoparticles, Metals, Nanoplasmonics, Polymerization, Near field, Electromagnetism, Two photon polymerization

Read Abstract +

Proceedings Article | 28 February 2020 Presentation + Paper

Quantum emitters based on polymeric structures embedded with quantum dots fabricated via photo-polymerization

Xiaolun Xu, Josslyn Beltran Madrigal, Aurélie Broussier, Giuseppe Emanuele Lio, Fabien Geoffray, Ali Issa, Safi Jradi, Renaud Bachelot, Christophe Couteau, Sylvain Blaize

Proceedings Volume 11292, 112920O (2020) https://doi.org/10.1117/12.2544446

KEYWORDS: Quantum dots, Waveguides, Polymers, Polymerization, Two photon polymerization, Nanocomposites, Nanolithography

Read Abstract +

Proceedings Article | 9 September 2019 Presentation

Hybrid plasmonic nanosystem with controlled position of quantum emitters (Conference Presentation)

Aurélie Broussier, Ali Issa, Loïc Le Cunff, Tien Hoa Nguyen, Dinh Xuan Quyen, Safi Jradi, Christophe Couteau, Renaud J. Bachelot

Proceedings Volume 11082, 110820C (2019) https://doi.org/10.1117/12.2527682

KEYWORDS: Nanowires, Quantum dots, Plasmonics, Surface plasmons, Silver, Energy transfer, Control systems, Nanoplasmonics, Optical properties, Nanoparticles

Read Abstract +

Proceedings Article | 13 May 2010 Paper

Fabrication of microlenses and optical waveguides by self-guiding photopolymerization

Olivier Soppera, Safi Jradi, Daniel Lougnot

Proceedings Volume 7716, 771608 (2010) https://doi.org/10.1117/12.858892

KEYWORDS: Polymers, Polymerization, Oxygen, Microlens, Optical fibers, Photopolymerization, Photonics, Absorption, Waveguides, Near infrared

Read Abstract +

Proceedings Article | 2 September 2009 Paper

Nanoscale photopolymerization induced by the enhanced optical near field of metallic nanoparticles

Claire Deeb, Anne-Laure Baudrion, Safi Jradi, Jérôme Plain, Alexandre Bouhelier, Olivier Soppera, Lavinia Balan, Hassan Ridaoui, Pascal Royer, Renaud Bachelot

Proceedings Volume 7395, 739505 (2009) https://doi.org/10.1117/12.826150

KEYWORDS: Polymers, Nanoparticles, Polymerization, Silver, Photopolymerization, Surface plasmons, Particles, Near field, Absorption, Optical properties

Read Abstract +

Proceedings Article | 17 September 2007 Paper

Optical near-field patterning of photopolymer

Olivier Soppera, Safi Jradi, Carole Ecoffet, Daniel Lougnot

Proceedings Volume 6647, 66470I (2007) https://doi.org/10.1117/12.732416

KEYWORDS: Polymers, Near field optics, Photopolymerization, Polymer thin films, Interfaces, Optical lithography, Interferometry, Refractive index, Oxygen, Polymerization

Read Abstract +

Proceedings Article | 18 July 2007 Paper

Homodyne detection for Lippmann data storage

Gilles Pauliat, Guillaume Maire, Carole Arnaud, Frédéric Guattari, Kevin Contreras, Gérald Roosen, Safi Jradi, Christiane Carré

Proceedings Volume 6620, 66200F (2007) https://doi.org/10.1117/12.738655

KEYWORDS: Homodyne detection, Signal detection, Data storage, Mirrors, Photography, Holography, Fiber Bragg gratings, Image processing, Diffraction, Reflectivity

Read Abstract +

Proceedings Article | 28 April 2006 Paper

Influence of the physico-chemical and photonic parameters on mechanical and optical properties of end-of-fiber polymer tips

Safi Jradi, Olivier Soppera, Christiane Carré, Daniel Lougnot, Renaud Bachelot, Pascal Royer

Proceedings Volume 6188, 61880Y (2006) https://doi.org/10.1117/12.662719

KEYWORDS: Polymers, Polymerization, Microlens, Oxygen, Absorption, Optical fibers, Optical properties, Quenching (fluorescence), Argon, Near field scanning optical microscopy

Read Abstract +

Proceedings Article | 27 April 2006 Paper

Pulsed-force mode AFM characterization of photopatterned polymer films for holographic data storage application

Olivier Soppera, Safi Jradi, Christiane Carre, Daniel Lougnot

Proceedings Volume 6188, 618809 (2006) https://doi.org/10.1117/12.663251

KEYWORDS: Atomic force microscopy, Polymers, Holography, Spectroscopy, Polymer thin films, FT-IR spectroscopy, Data storage, Polymerization, Photopolymerization, Diffusion

Read Abstract +

Organic materials are taking a growing place in the development of new materials for data technologies thanks to the potential of molecular engineering, the flexibility of available chemical compositions, the low costs..., but also because of their unique optical and mechanical properties. In this context, photopolymers present specific advantages particularly interesting for high density optical data storage, based on the possibility of structuring their linear and nonlinear optical properties with a great facility by direct optical patterning. In order to understand and control the physico-chemical aspects of the photopatterning, means of investigation at a micro and nanoscopic scales are required. Not only the 3D imaging of the object is needed, but some structural information on the material is necessary to go further in the investigation of the involved phenomena. AFM used in Pulsed Force Mode (PFM) fulfils these requirements: the PFM mode is a non-resonant mode designed to allow approach curves to be acquired along the scanning path. It thereby provides a recording of the sample topography and extends the possibilities of the prevalent contact and intermittent-contact AFM modes to a direct and simple local characterization of adhesion and stiffness. This paper describes the principle of Pulsed Force Mode AFM and illustrates its usefulness for investigating of the photostructuration of polymer matrixes. In a first part, homogeneously irradiated films were characterized in order to demonstrate the sensibility of the PFM analysis. In particular, the PFM signal is correlated to the monomer conversion ratio that was measured by FTIR spectroscopy. In a second step, we illustrate the potential of PFM for the investigation of photopatterned films. Holographic gratings were recorded in an acrylate-based formulation and characterized by PFM. We have successfully assigned the different areas of the film that correspond to different incident intensities. Using the information recorded on homogeneous films, it is possible to obtain an estimation of the conversion of the monomer at sub-micronic scale. Such a study is of primary importance in order to understand the mechanism leading to microstructuration and thus to optimize this process in terms of resolution.

Proceedings Article | 8 June 2005 Paper

Expanding the spatial resolution of acrylic films for data storage applications

S. Jradi, C. Croutxe-Barghorn, C. Carre

Proceedings Volume 5827, (2005) https://doi.org/10.1117/12.605808

KEYWORDS: Diffraction, Refractive index, Diffraction gratings, Modulation, Diffusion, Data storage, Holograms, Holography, Polymers, Polymerization

Read Abstract +

Showing 5 of 10 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years