Results 81 to 90 of about 1,920,107 (363)

On-chip electro-optic tuning of a lithium niobate microresonator with integrated in-plane microelectrodes

open access: yes, 2016
We demonstrate electro-optic tuning of an on-chip lithium niobate microresonator with integrated in-plane microelectrodes. First two metallic microelectrodes on the substrate were formed via femtosecond laser process.
Cheng, Ya   +9 more
core   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

Universal threshold for femtosecond laser ablation with oblique illumination

open access: yes, 2016
We quantify the dependence of the single-shot ablation threshold on the angle of incidence and polarization of a femtosecond laser beam, for three dissimilar solid-state materials: a metal, a dielectric and a semiconductor.
Cheng, Weibo   +3 more
core   +1 more source

Femto-Laser Assisted Cataract Surgery: A Major Review

open access: yesDelhi Journal of Ophthalmology, 2014
Femtosecond laser–assisted cataract surgery provides the newest innovation in field of ophthalmology that has revolutionized the way cataract surgery is performed with potential of better outcomes and safety. This article describes the femtosecond laser,
Mahipal S Sachdev   +4 more
doaj   +1 more source

Electrons dynamics control by shaping femtosecond laser pulses in micro/nanofabrication: modeling, method, measurement and application

open access: yesLight: Science & Applications, 2017
During femtosecond laser fabrication, photons are mainly absorbed by electrons, and the subsequent energy transfer from electrons to ions is of picosecond order.
Lan Jiang   +4 more
semanticscholar   +1 more source

Femtosecond Laser Spectroscopy [PDF]

open access: yes, 2005
Foreword.- Preface.- Phase Controlled Femtosecond Lasers for Sensitive, Precise and Wide Bandwidth Nonlinear Spectroscopy.- Supercontinuum and High-Order Harmonics: 'Extreme' Coherent Sources for Atomic Spectroscopy and Attophysics.- The Measurement of Ultrashort Light - Simple Devices, Complex Pulses.- Femtosecond Combs for Precision Metrology ...
openaire   +3 more sources

Ultrafast Energy Transfer Induced Lasing From a Coplanar Donor‐Acceptor‐Donor Molecule in a Microspherical Cavity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a novel donor‐bridge‐acceptor‐bridge‐donor (D‐B‐A‐B‐D) molecular system, which shows near‐unity intramolecular excitation energy transfer (IET) from two identical energy donors to a coplanar acceptor. It enables a four‐level energy system for efficient lasing at the acceptor emission band in a microspherical cavity with a low lasing
Vishal Kumar   +6 more
wiley   +1 more source

Femtosecond Laser Ablated Polymer SERS Fiber Probe With Photoreduced Deposition of Silver Nanoparticles

open access: yesIEEE Photonics Journal, 2016
In this paper, a surface-enhanced Raman scattering (SERS) spectral probe based on a polymethylmethacrylate (PMMA) polymer fiber is produced by femtosecond laser ablation and photoreduced deposition of silver nanoparticles. It shows that a surface grating
Geng Youfu   +5 more
doaj   +1 more source

Endowing Metal Surfaces With Underwater Superoleophobicity by Femtosecond Laser Processing for Oil-Water Separation Application

open access: yesFrontiers in Physics, 2020
In this paper, a widely applicable method that has promise in endowing various metals with oil-water separation ability by femtosecond laser processing is reported.
Jiale Yong   +3 more
doaj   +1 more source

Three-dimensional femtosecond laser processing for lab-on-a-chip applications

open access: yes, 2018
The extremely high peak intensity associated with ultrashort pulse width of femtosecond laser allows us to induce nonlinear interaction such as multiphoton absorption and tunneling ionization with materials that are transparent to the laser wavelength ...
F. Sima   +5 more
semanticscholar   +1 more source

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