You are here
Micro-soufflage de verre pour la réalisation de composants optiques miniatures
A team of researchers from FEMTO-ST has developed miniature conical lenses by revisiting glass-blowing techniques practiced since Roman times.
For centuries, glass blowing is, indeed, a technique for making glass parts in volume. A FEMTO-ST research team recently applied it on a microscopic scale to collectively produce a particular optical component, a miniature axicon, on the same substrate.
This component is in fact a conical microlens whose profile allows to generate quasi-Bessel beams, that is to say non-diffracting beams. This allows to create a miniature light saber or a light needle.
In an article published on June 25, 2019 in Optics Letters (and selected by the Optical Society of America in its News Releases), researchers presented a technique for manufacuring miniature axicons based on glass blowing. from structured micro-cavities in a silicon substrate and sealed with a glass substrate. When the stack is highly heated, the expansion of the trapped gas, combined with the drop in glass viscosity, forms bubbles used as pistons to generate and control a profile on the opposite side of the glass substrate. Once the pistons removed by polishing, hundreds of axicons can be obtained on the same substrate. Robust, they are destined to be integrated in more complex microsystems for medical imaging or in the extension of machining performance.
“Microscopic Glass Blowing Used to Make Tiny Optical Lenses”, Optics Letters News, June 2019. https://www.osa.org/en-us/about_osa/newsroom/news_releases/2019/microscopic_glass_blowing_used_to_make_tiny_optica/
Article: J. V. Carrión, J. Albero, M. Baranski, C. Gorecki, N. Passilly, “Microfabrication of axicons by glass blowing at a wafer-level,” Opt. Lett., 44, 13, 3282-3285 (2019).
DOI: https://10.1364/OL.44.003282.
More informations : Nicolas Passily
-
Robotic assembly of the smallest house in the world
the handling and assembly capabilities of nanocomponents of the "μRobotex" platform make the buzz on the net and in the international press through the origami manufacturing of a micro-house at the end of an optical fiber whose dimensions are less than the diameter of a hair.
Read more
-
International Day of Light 2018
Following the success of the International Year of Light, which highlighted the importance of light-based science and technology and generated more than 13,000 activities in 147 countries, UNESCO proclaimed May 16 as the International Day of Light.
Read more
Enrico Rubiola honored at IFCS 2018
Enrico Rubiola will receive the W. G. Cady Award at the IFCS 2018 on May 24th.
Read more
L'institut FEMTO-ST partenaire d'un programme européen Marie-Curie H2020 Innovative Training Networ
The department of Optics of the FEMTO-ST research institute in Besançon
in France currently has a vacancy for 2 3-years Ph.D positions working in
the development of mid-infrared and ultraviolet supercontinuum fiber sources within the
Read more
FACS 2016 - The 13th International Conference on Formal Aspects of Component Software
The DISC department, organizer of the 13th International Conference on FACS.
Read more
Special issue of Comptes Rendus Physique on phononic crystals
The May 2016 issue of Comptes Rendus Physique (an international peer-reviewed journal of the French Academy of Sciences), is devoted to phononic crystals. This special issue was coordinated by Vincent Laude.
Read more
Paper prize at the international conference VPPC 2014
At the International IEEE "Vehicle Power and Propulsion Conference" conference held in Coimbra, Portugal from 27 to 30 October 2014, “Hybrid & Fuel Cell Systems” Research Team of Femto-ST Institute won the Paper Prize for the paper titled “Energy management of an hybrid electrical vehicule in degraded operation”
Read more
A book about flexible robotics co-written by Nicolas Chaillet
The objective of the book "Flexible Robotics: Applications to Multiscale Manipulations" is to provide those interested in the field of flexible robotics with an overview of several scientific and technological advances in the practical field of robotic manipulation.
Read more
Pages