Insights into Enhanced Repeatability of Femtosecond Laser-Induced Plasmas- femtosecond laser induced ,Introduction.. With developing chirped-pulse amplification, powerful femtosecond laser systems have been constructed and introduced into laser-induced breakdown spectroscopy (LIBS).. 1−3 Femtosecond lasers can improve figures of merit for LIBS analytical performance, 4 including the absence of fractional evaporation, better depth control and quality ablation crater, reduction in damage, and ..Femtosecond laser induced robust Ti foam based evaporator for efficient ..Solar desalination is a sustainable, low-cost and eco-friendly method for water purification.. Current methods for solar evaporation desalination suffer from relatively low efficiencies, complex preparations, high cost, and instability.. Here, for the first time, we propose a femtosecond laser structured Ti fo
Bulk damage induced by fs IR laser pulses in silica is investigated both experimentally and numerically.. In a strong focusing geometry, a first damage zone is followed by a narrow track with submicron width, indicating a filamentary propagation.. The shape and size of the damage tracks are shown to c …
Bulk damage induced by fs IR laser pulses in silica is investigated both experimentally and numerically.. In a strong focusing geometry, a first damage zone is followed by a narrow track with submicron width, indicating a filamentary propagation.. The shape and size of the damage tracks are shown to correspond to the zone where the electron density created by optical field ionization and ..
Inorganic perovskite quantum dots (QDs) and nanocrystals (NCs) have attracted much attention in recent years because of their high photoluminescence (PL) quantum yield (QY), narrow full width at half-maximum, and wide tunability across the whole visible range.. In this work, space- and size-controlled precipitation of CsPbBr3 perovskite NCs was realized through a femtosecond laser-direct ..
The other experiment was conducted by using 1030-nm NIR femtosecond laser with a 280-fs pulse of pulse energy of 1–5 µJ and 100-kHz high repetition rate during 5 min, and immersion oil is also required to reduce the laser-induced thermal energy.. An optical fiber was immersed in water to avoid the thermal influence, where helical drilling ..
Orientations of laser induced periodic surface structures (LIPSS) are usually considered to be governed by the laser polarization state.. In this work, we unveil that fluid dynamics induced by femtosecond (fs) laser ablation in liquid (fs-LAL) can easily break this polarization restriction to produce irregular circular-LIPSS (CLIPPS) and crisscross-LIPSS (CCLIPSS)..
The reaction was induced using focused 800 nm, 30 femtosecond Ti-sapphire laser pulses with a minimum laser energy of 100 nano-Joules/pulse, where the intensities were around the observation of supercontinuum generation .. This would mean filamentation because supercontinuum generation is a consequence of filamentation..
Direct inscription of waveguides (WGs) into laser gain materials using a femtosecond laser (FSL) is a fast fabrication technique that allows complex photonic functionalities to be integrated into ..
Ever since its discovery ultrafast demagnetization has remained one of the most intriguing research areas in magnetism.. Here, we demonstrate that in [Co (tCo)/Pd (0..9 nm)]8 multilayers, the characteristic decay time in femtosecond timescale varies non-monotonically with tCo in the range 0..07 nm ≤ tCo ≤ 0..75 nm.. Further investigation reveals higher spin fluctuation at higher ratio of ..
Femtosecond laser-induced periodic grooves and nanopore clusters make a synergistic effect on osteogenic differentiation Colloids Surf B .. by changing the power of femtosecond laser, micro-grooves are made on the PEEK surface.. As observed by scanning electron microscopy, the trench has a periodic structure, the micro shape is neat, and the ..
Al- D.. Effect of dual-beam exposure parameters on chemical though, the pressure obtained remains moderate (a few tens of etching selectivity GPa), mainly due to the limit in laser power in our setup, this method demonstrates a path-way towards non-contact laser- It is known that femtosecond-laser affects the etching induced high pressure ..
Controllable femtosecond laser‐induced dewetting for plasmonic applications.. Dewetting of thin metal films is one of the most widespread method for functional plasmonic nanostructures fabrication.. However, simple thermal‐induced dewetting does not allow to control degree of nanostructures order without additional lithographic process steps..
The laser-induced damage threshold (LIDT) of optical components is one of the major constraints in developing high-power ultrafast laser systems.. Multi-layer dielectric (MLD) coatings-based ..
Inorganic perovskite quantum dots (QDs) and nanocrystals (NCs) have attracted much attention in recent years because of their high photoluminescence (PL) quantum yield (QY), narrow full width at half-maximum, and wide tunability across the whole visible range.. In this work, space- and size-controlled precipitation of CsPbBr3 perovskite NCs was realized through a femtosecond laser-direct ..
Inorganic perovskite quantum dots (QDs) and nanocrystals (NCs) have attracted much attention in recent years because of their high photoluminescence (PL) quantum yield (QY), narrow full width at half-maximum, and wide tunability across the whole visible range.. In this work, space- and size-controlled precipitation of CsPbBr3 perovskite NCs was realized through a femtosecond laser-direct ..
Explore the latest full-text research PDFs, articles, conference papers, preprints and more on FEMTOSECOND LASERS.. Find methods information, sources, references or conduct a literature review on ..
Bulk damage induced by fs IR laser pulses in silica is investigated both experimentally and numerically.. In a strong focusing geometry, a first damage zone is followed by a narrow track with submicron width, indicating a filamentary propagation.. The shape and size of the damage tracks are shown to c …
Ever since its discovery ultrafast demagnetization has remained one of the most intriguing research areas in magnetism.. Here, we demonstrate that in [Co (tCo)/Pd (0..9 nm)]8 multilayers, the characteristic decay time in femtosecond timescale varies non-monotonically with tCo in the range 0..07 nm ≤ tCo ≤ 0..75 nm.. Further investigation reveals higher spin fluctuation at higher ratio of ..
The other experiment was conducted by using 1030-nm NIR femtosecond laser with a 280-fs pulse of pulse energy of 1–5 µJ and 100-kHz high repetition rate during 5 min, and immersion oil is also required to reduce the laser-induced thermal energy.. An optical fiber was immersed in water to avoid the thermal influence, where helical drilling ..
Explore the latest full-text research PDFs, articles, conference papers, preprints and more on FEMTOSECOND LASERS.. Find methods information, sources, references or conduct a literature review on ..
Using femtosecond (fs) lasers to generate subsurface structures in transparent materials has led to a variety of applications.. Among them, the production of photonic and microfluidic components has been particularly successful.. 1 Direct laser writing of subsurface structures 2 is based on the use of an ultrafast laser beam that is focused underneath the surface..
Solar desalination is a sustainable, low-cost and eco-friendly method for water purification.. Current methods for solar evaporation desalination suffer from relatively low efficiencies, complex preparations, high cost, and instability.. Here, for the first time, we propose a femtosecond laser structured Ti fo
To support the growing landscape of near to mid-IR laser applications we demonstrate a range of low propagation loss femtosecond laser (FSL) written waveguides (WGs) that have achieved guided-mode ..
The laser-induced damage threshold (LIDT) of optical components is one of the major constraints in developing high-power ultrafast laser systems.. Multi-layer dielectric (MLD) coatings-based ..
The reaction was induced using focused 800 nm, 30 femtosecond Ti-sapphire laser pulses with a minimum laser energy of 100 nano-Joules/pulse, where the intensities were around the observation of supercontinuum generation .. This would mean filamentation because supercontinuum generation is a consequence of filamentation..
