Now showing items 1-10 of 1184
Nonlinear laser lithography to control surface properties of stainless steel
(Elsevier BV, 2015)
In the present work a novel method to improve the surface properties of stainless steel is presented and discussed. The method, based on the use of a high repetition rate femtosecond Yb fibre laser, permits generation of ...
Strong coupling between localized and propagating plasmon polaritons
(OSA - The Optical Society, 2015)
We investigate plasmon-plasmon (PP) coupling in the strongly interacting regimes by using a tunable plasmonic platform consisting of triangular Ag nanoprisms placed nanometers away from Ag thin films. The nanoprisms are ...
Hartree-Fock approximation of bipolaron state in quantum dots and wires
The bipolaronic ground state of two electrons in a spherical quantum dot or a quantum wire with parabolic boundaries is studied in the strong electron-phonon coupling regime. We introduce a variational wave function that ...
High-power-high-repetition-rate-single-mode Er-Yb-doped fiber laser system
(Optical Society of America, 2012)
We demonstrate an all-fiber-integrated, high-power chirped-pulse-amplification system operating at 1550 nm. The seed source is a soliton fiber laser with 156 MHz repetition rate. Two-stage single mode amplifier provides ...
Demonstration of a cavity-enhanced optical parametric chirped-pulse amplification system
(Optical Society of America, 2011-03-28)
The use of a low finesse enhancement cavity resonant with a low average power (< 1W) and a high repetition rate (78MHz) pump source is shown to achieve 55% conversion efficiency into signal and idler from the coupled pump ...
Sub-50 fs Yb-doped laser with anomalous-dispersion photonic crystal fiber
(Optical Society of America, 2013)
We report on the generation of 42 fs pulses at 1 μm in a completely fiber-integrated format, which are, to the best of our knowledge, the shortest from all-fiber-integrated Yb-doped fiber lasers to date. The ring fiber ...
All-fiber nonlinearity-and dispersion-managed dissipative soliton nanotube mode-locked laser
(American Institute of Physics, 2015)
We report dissipative soliton generation from an Yb-doped all-fiber nonlinearity- and dispersion-managed nanotube mode-locked laser. A simple all-fiber ring cavity exploits a photonic crystal fiber for both nonlinearity ...
Nonlinearity management: from fiber oscillators to amplifiers
While the standard approach to performance scaling in fiber lasers seeks to reduce nonlinear effects through chirping or mode scaling, I will review recent progress in a complementary approach, whereby the governing dynamics ...
Broadband terahertz modulators using self-gated graphene capacitors
(Optical Society of America, 2015)
We demonstrate a terahertz intensity modulator using a graphene supercapacitor which consists of two large-area graphene electrodes and an electrolyte medium. The mutual electrolyte gating between the graphene electrodes ...
Preface to the special issue on short pulse fiber lasers
(Academic Press Inc., 2014)