Results 71 to 80 of about 6,005 (217)

Processing of Single-Walled Carbon Nanotubes with Femtosecond Laser Pulses

open access: yesApplied Sciences, 2019
There are continued efforts to process and join single wall carbon nanotubes (SWCNTs) in order to exploit their exceptional functional properties for real-world applications.
Zeyad Almutairi   +3 more
doaj   +1 more source

Symmetric polarization insensitive directional couplers fabricated by femtosecond laser waveguide writing [PDF]

open access: yes, 2018
We study analytically the polarization behaviour of directional couplers composed of birefringent waveguides, showing that they can induce polarization transformations that depend on the specific input-output path considered.
Atzeni, Simone   +5 more
core   +4 more sources

Microengineering the Liver: Strategies for Constructing Functional Liver‐on‐a‐Chip Devices

open access: yesExploration, EarlyView.
This review summarizes recent advances in liver‐on‐a‐chip (LOC) technologies, including fabrication strategies and functional integration approaches, and discusses their promising applications in drug screening and related biomedical fields. ABSTRACT Reliable in vitro liver models are indispensable for researching liver diseases and developing ...
Jie Wang   +7 more
wiley   +1 more source

A Monolithic Gimbal Micro-Mirror Fabricated and Remotely Tuned with a Femtosecond Laser

open access: yesMicromachines, 2019
With the advent of ultrafast lasers, new manufacturing techniques have come into existence. In micromachining, the use of femtosecond lasers not only offers the possibility for three-dimensional monolithic fabrication inside a single optically ...
Saood Ibni Nazir, Yves Bellouard
doaj   +1 more source

Optofluidic lab-on-chips for high throughput 3D imaging of cells and tissues [PDF]

open access: yesEPJ Web of Conferences, 2019
Optofludic lab-on-chips are compact microsystems that allow the manipulation, the analysis and the imaging of cells with high throughput even at the single cell level. The optofluidic microscopes on chip here presented are fabricated by femtosecond laser
Sala Federico   +6 more
doaj   +1 more source

New phenomena in interaction of intense ultrashort light pulses with transparent materials: from 3D self-assembled nanostructures to quill writing and nonreciprocal photosensitivity

open access: yes, 2010
Interaction of intense ulrashort light pulses with transparent materials reveal new ultrafast phenomena. Recent demonstrations of 3D nanoripple formation, ultrafast laser calligraphy and nonreciprocal photosensitivity are ...
Beresna, M.   +4 more
core   +1 more source

Fast Escape from Quantum Mazes in Integrated Photonics [PDF]

open access: yes, 2015
Escaping from a complex maze, by exploring different paths with several decision-making branches in order to reach the exit, has always been a very challenging and fascinating task.
Caruso, Filippo   +4 more
core   +4 more sources

Multi‐material and dual‐stimulus coupled actuation micro‐gears for shape–rotation control in intelligent micro‐electro‐mechanical systems

open access: yesFlexMat, EarlyView.
A multi‐material and dual‐stimulus coupled actuation micro‐gear (MDCAMG) is developed via femtosecond‐laser 3D printing combined with magnetic nanoparticle absorption, enabling integrated environmental sensing and remote actuation at the microscale. The device incorporates a pH‐responsive hydrogel matrix for autonomous swelling/shrinking and a magnetic
Sida Peng, Shengzhi Sun, Jian Li, Yi Zhu
wiley   +1 more source

Micromachining of Transparent Biocompatible Polymers Applied in Medicine Using Bursts of Femtosecond Laser Pulses

open access: yesMicromachines, 2020
Biocompatible polymers are used for many different purposes (catheters, artificial heart components, dentistry products, etc.). An important field for biocompatible polymers is the production of vision implants known as intraocular lenses or custom-shape
Evaldas Kažukauskas   +5 more
doaj   +1 more source

High repetition rate femtosecond laser heat accumulation and ablation thresholds in cobalt-binder and binderless tungsten carbides [PDF]

open access: yes, 2019
Femtosecond (fs) laser ablation has been studied for the potential of fast, high precision machining of difficult-to-machine materials like binderless tungsten carbide. Obstacles that have limited its efficiency include melting from heat accumulation (HA)
Aguilar, G   +5 more
core   +1 more source

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