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
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TLDR
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.Abstract:
In numerous applications of optical scanning microscopy, a reference tapered fiber lens with high symmetry at sub-wavelength scale remains a challenge. Here, we demonstrate the ability to manufacture it with a wide range of geometry control, either for the length from several hundred nanometers to several hundred microns, or for the curvature radius from several tens of nanometers to several microns on the endface of a single mode fiber. On this basis, a scanning optical microscope has been developed, which allows for fast characterization of various sub-wavelength tapered fiber lenses. Focal position and depth of microlenses with different geometries have been determined to be ranged from several hundreds of nanometers to several microns. FDTD calculations are consistent with experimental results.read more
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Wavelength-scale light concentrator made by direct 3D laser writing of polymer metamaterials
Johnny Moughames,Johnny Moughames,Safi Jradi,T. M. Chan,Suzanna Akil,Yann Battie,A. En Naciri,Z.G. Herro,Sébastien Guenneau,Stefan Enoch,Lilian Joly,Julien Cousin,Aurélien Bruyant +12 more
TL;DR: Infrared imaging of the structures reveals a tight focusing for both structures with a maximum local intensity increase by a factor of 2.5 for a concentrator volume of 1.5 λ3, slightly limited by the residual absorption of the selected polymer.
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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
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Polymer Microtips at Different Types of Optical Fibers as Functional Elements for Sensing Applications
Paulina Pura,Michal Szymanski,Michał Dudek,Leszek R. Jaroszewicz,Pawel Marc,Malgorzata Kujawinska +5 more
TL;DR: In this article, a simple process of fabrication of micrometer-sized polymer elements (microtips) at the extremities of different type optical fibers, including: standard single mode (SMF-28E+, SM-450), photonic crystal (LMA-10), and polymer (GIPOF-62) ones, is reported.
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Integration of Nanoemitters onto Photonic Structures by Guided Evanescent-Wave Nano-Photopolymerization
Giuseppe Emanuele Lio,Giuseppe Emanuele Lio,Josslyn Beltran Madrigal,Xiaolun Xu,Ying Peng,Stefano Pierini,Stefano Pierini,Christophe Couteau,Safi Jradi,Renaud Bachelot,Roberto Caputo,Sylvain Blaize +11 more
TL;DR: In this article, the feasibility of self-positioning nanoemitters onto optical waveguides by visible-light nanoscale photopolymerization was demonstrated, and a light-sensitive material containing nano-emitters was presented.
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Fabrication of polymer microlenses on single mode optical fibers for light coupling
TL;DR: In this paper, a technique for producing fibers optics micro-collimators composed of polydimethylsiloxane PDMS microlenses of different radii of curvature is presented.
References
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Small-focus integral fiber lenses: modeling with the segmented beam-propagation method and near-field characterization.
TL;DR: Tapered- and straight-core fiber microlenses of hyperbolic shape are studied with the segmented beam propagation method (Se-BPM) and it is shown that the emergent beam is not Gaussian in the far field.
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In Vivo Monitoring of Fluorescent Nanosphere Delivery in Anesthetized Rats Using an Implantable Fiber-Optic Microprobe
Leu-Wei Lo,Pi-Ju Tsai,† Sam Hong-Yi Huang,‡ Wen-Ying Chen,‡ Yun-Tse Wang,† and Chia-Hua Chang,Chung-Shi Yang +6 more
TL;DR: To the knowledge, the use of the implantable needle-type fiber-optic microprobe is the first minimally invasive technique capable of investigating the "size window" of vascular permeability for the in vivo delivery of nanospheres in both ischemic livers and brains.
High speed sub-micrometric microscopy using optical polymer microlens
TL;DR: In this paper, a high speed scanning submicronic microscopy (SSM) using a low cost polymer microlens integrated at the extremity of an optical fiber is described.