Journal ArticleDOI
High speed sub-micrometric microscopy using optical polymer microlens
Xinhua Zeng,Jérôme Plain,Safi Jradi,P. Renaud Goud,Régis Déturche,Pascal Royer,Renaud Bachelot +6 more
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TLDR
In this article, a high speed scanning submicronic microscopy (SSM) using a low cost polymer microlens integrated at the extremity of an optical fiber is described.Abstract:
We report the high speed scanning submicronic microscopy (SSM) using a low cost polymer microlens integrated at the extremity of an optical fiber. These microlenses are fabricated by a free-radical photopolymerization method. Using a polymer microlens with a radius of curvature of 250 nm, a sub-micrometric gold pattern is imaged experimentally by SSM. Different distances between the tip and the sample are used with a high scanning speed of 200 cm/s. In particular, metallic absorption contrasts are described with an optical spatial resolution of 250 nm at the wavelength of 532 nm. Moreover, finite-difference time-domain (FDTD) simulations concerning the focal lengths of microlenses with different geometries and heights support the experimental data.read more
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Journal ArticleDOI
Integrated optical transfection system using a microlens fiber combined with microfluidic gene delivery
TL;DR: The miniaturized, integrated design opens a range of exciting experimental possibilities, including the dosing of tissue slices, targeted drug delivery, and targeted gene therapy in vivo.
Journal ArticleDOI
3D Photoluminescent Nanostructures Containing Quantum Dots Fabricated by Two-Photon Polymerization: Influence of Quantum Dots on the Spatial Resolution of Laser Writing
Ying Peng,Safi Jradi,Xuyong Yang,Xuyong Yang,Maxime Dupont,Fatima Hamie,Xuan Quyen Dinh,Xuan Quyen Dinh,Xiao Wei Sun,Xiao Wei Sun,Tao Xu,Renaud Bachelot +11 more
Journal ArticleDOI
Rapid fabrication of micro-nanometric tapered fiber lens and characterization by a novel scanning optical microscope with submicron resolution.
Shouguo Zheng,Xinhua Zeng,Wei Luo,Safi Jradi,Jérôme Plain,Miao Li,Philippe Renaud-Goud,Régis Déturche,Zengfu Wang,Jieting Kou,Renaud Bachelot,Pascal Royer +11 more
TL;DR: The ability to manufacture a reference tapered fiber lens with high symmetry at sub-wavelength scale with a wide range of geometry control is demonstrated, either for the length from several hundred nanometers to several hundred microns, or for the curvature radius on the endface of a single mode fiber.
Journal ArticleDOI
Photonic Jet-Shaped Optical Fiber Tips versus Lensed Fibers
TL;DR: In this article, a photonic jet (PJ) is generated by coupling light in the guide fundamental mode and when the base diameter of the microlens is close to the core diameter.
Journal ArticleDOI
Integration of polymer microlens array at fiber bundle extremity by photopolymerization.
Xinhua Zeng,Jérôme Plain,Safi Jradi,Claire Darraud,Frédéric Louradour,Renaud Bachelot,Pascale Royer +6 more
TL;DR: A novel route to directly integrate an array of microlenses at the extremity of an optical fiber bundle based on photopolymerization at the end of the fiber is presented.