simulation of microscale densification during femtosecond laser processing of dielectric materials
simulation of microscale densification during femtosecond laser processing of dielectric materials
... (2004) Materials Science & Processing Applied Physics A x.r. zhang 1 x. xu 1,✉ a.m. rubenchik 2 Simulation of microscale densification during femtosecond laser processing of dielectric materials 1 School ... heat-diffusion ZHANG et al. Simulation of microscale densification during femtosecond laser processing of dielectric materials 947 FIGURE 2 T...
Ngày tải lên: 06/05/2014, 08:54
simulation of microscale densification during femtosecond laser processing of dielectric materials
... (2004) Materials Science & Processing Applied Physics A x.r. zhang 1 x. xu 1,✉ a.m. rubenchik 2 Simulation of microscale densification during femtosecond laser processing of dielectric materials 1 School ... heat-diffusion ZHANG et al. Simulation of microscale densification during femtosecond laser processing of dielectric materials 947 FIGURE 2 T...
Ngày tải lên: 06/05/2014, 08:58
mechanisms of decomposition of metal during femtosecond laser ablation
... time steps at laser fluence of 1.5 J/cm 2 . FIG. 13. Positions of groups of atoms at laser fluence of 0.3 J /cm 2 . FIG. 14. Thermodynamic trajectories of groups of atoms at laser fluence of 0.3 J /cm 2 . MECHANISMS ... OF DECOMPOSITION OF METAL DURING PHYSICAL REVIEW B 72, 165415 ͑2005͒ 165415-15 Mechanisms of decomposition of metal during femtosecond laser ab...
Ngày tải lên: 06/05/2014, 08:55
beam propagation modeling of modified volume fresnel zone plates fabricated by femtosecond laser direct writing
... for a VFZP consisting of a larger number of FZP layers, focusing due to multiple diffractions is negligible. 5. VOLUME FRESNEL ZONE PLATE SIMULATIONS A major purpose of VFZP simulation is to study ... be fabricated by femtosecond laser direct writing. This con- cept was experimentally demonstrated with an eight- layer modified VFZP, showing a maximum efficiency of 71.5% [2]. Howev...
Ngày tải lên: 06/05/2014, 08:53
control of current saturation and threshold voltage shift in indium oxide nanowire transistors with femtosecond laser annealing
... I ds -V gs characteristics of Figure 2. Effect of femtosecond laser annealing on the output resistance and threshold voltage of a NWT. (a) The I ds -V ds characteristic of a fully transparent In 2 O 3 NWT. ... value of NM L was around 0.3 V before administer- ing femtosecond laser annealing, which is a com- promised operation. The femtosecond laser annealing produced a se...
Ngày tải lên: 06/05/2014, 08:53
measurement of solid liquid interface temperature during pulsed excimer laser melting of polycrystalline silicon films
... effect of the laser energy instability, the fluence of each laser shot is measured. The experimental data are accepted when the measured laser fluence has the desired value. To eliminate the effect of ... pulsed KrF excimer laser with a pulse duration of 26 ns and a wavelength of 248 nm ͑Fig. 1͒. A beam homogenizer is used to ensure spatial uniformity in the laser beam. The...
Ngày tải lên: 06/05/2014, 08:54
molecular dynamics simulation of ultrafast laser ablation of fused silica film
... 2008 Abstract Ultrafast laser ablation of fused silica is studied using molecular dynamics simulations. Ionization and gen- eration of free electrons, absorption of the laser energy by free electrons ... steps: (a) electrons stay in the sample, (b) electrons go out of sample, (c) no ionization Molecular dynamics simulation of ultrafast laser ablation of fused silica film 85...
Ngày tải lên: 06/05/2014, 08:54
Experimental and numerical investigation of heat transferand phase change phenomena during excimer laser interactionwith nickel
... transmissivity of the laser beam in the laser! ablated plume and its expansion vel! ocity changed little[ Further\ there was a drastic increase of scattering of laser light when the laser ~uence ... reaches 9[73T c at a laser ~uence of 4[1 J cm −1 \ and 9[8T c at a laser ~uence of 4[8 J cm −1 [ The numerical results agree with the experiments on the mechanisms of mater...
Ngày tải lên: 06/05/2014, 08:55
Báo cáo y học: "Maternal use of Loratadine during pregnancy and risk of hypospadias in offspring"
... Loratadine during pregnancy and risk of hypospadias in offspring Lars Pedersen, Mette Vinther Skriver, Mette Nørgaard, Henrik Toft Sørensen Department of Clinical Epidemiology, Aarhus University ... the occurrence of hypospadias after the use of other antihistamines. The OR for having a diagnosis of hypospadias in the Swedish Medical Birth Registry (MBR) after maternal use o...
Ngày tải lên: 02/11/2012, 10:09
Báo cáo y học: "Risk and Benefit of Drug Use During Pregnancy"
... teratogenic risk of drugs is exaggerated, while the benefit of medicine use during pregnancy is underestimated. Thus, a better balance is needed between the risk and benefit of drug treatments during ... the origin of orofacial clefts [5]. The role of teratogenic effect of environmental pollutants such as methyl mercury [6] was also reported but we cannot estimate the mag...
Ngày tải lên: 02/11/2012, 11:12