It has previously been reported that a peak at the spectral position of the second harmonic of an excitation laser can be generated in an inversion-symmetric medium in the regime of extreme nonlinear optics and that this peak may be exploited to measure the carrier-envelope phase of the excitation pulse. Here we revisit this phenomenon with regard to reverse engineering the carrier-envelope pha...

Inspired by some typical plants such as lotus leaves, superhydrophobic surfaces are commonly prepared by a combination of low surface energy materials and hierarchical micro/nano structures. In this work, superhydrophobic surfaces on copper substrates were prepared by a rapid, facile one-step pulse electrodepositing process, with different duty ratios in an electrolyte containing lanthanum chlo...

Nickel–Tungsten–Titanium carbide (Ni–W–TiC) coatings were produced by pulse electrodeposition from a Ni–W electrolyte containing TiC particles. The effects of concentration in the on morphology, crystallite size, microstrain, mechanical, tribology and electrochemical properties reinforced co-depositions investigated. highest hardness 8.3 GPa modulus elasticity 207 observed case coating at 15 g/...

In this article, a nanosecond pulse generation circuit is designed and fabricated based on commercial Si-p-i-n rectifier diode using the DSRD principle. The composed of four parallel stacks with 3-kV output rise time less than 2 ns. Each stack contains diodes in series. working principle main parameters are analyzed by Pspice, simulation results consistent experimental results. Switching cutoff...

Pulse deposition of 2.4 T Co37Fe63 alloy in photoresist features with 40 nm critical dimension and high aspect ratio is presented. The design of the pulse deposition parameters is described in terms of the transport limitations through the diffusion layer, electrochemical interface stability with respect to Fe(OH)3 precipitation, and the optimum conditions for additive (Saccharin) adsorption. T...

Ultrafast reverse photoreaction of visual pigment rhodopsin in the femtosecond time range at room temperature is demonstrated. Femtosecond two-pump probe experiments with a time resolution of 25 fs have been performed. The first рump pulse at 500 nm initiated cis-trans photoisomerization of rhodopsin chromophore, 11-cis retinal, which resulted in the formation of the primary ground-state photop...

We study theoretically absorption properties of MoS2 quantum dots placed in an ultrashort and strong optical pulse with the duration a few femtoseconds amplitude up to 1.5 V/Å. While monolayer has bandgap ≈1.8eV, have in-gap edge states, which open additional channels. The absorbance system strongly depends on pulse. At small amplitude, less than 0.5 V/Å, varies by more 20% frequency shows satu...

To achieve high performance Ge nMOSFETs it is necessary to reduce the metal/semiconductor Schottky barrier heights at the source and drain. Ni/Ge and NiGe/Ge Schottky barriers are fabricated by electrodeposition using n-type Ge substrates. Current (I)–voltage (V) and capacitance (C)–voltage (V) and low temperature I–V measurements are presented. A high-quality Schottky barrier with extremely lo...

The electrodeposition of Ni-MoO2 composite coatings is a specific process taking place under defined hydrodynamic conditions. In this work the influence of hydrodynamics, current density, and MoO2 concentration on the electrodeposition of Ni-MoO2 coatings from a suspension of MoO2 particles in a Watt’s type bath were investigated by comparison of their polarization characteristics for the hydro...

Al0.38Ga0.62N/GaN heterojunction solar-blind Schottky photodetectors with low dark current, high responsivity, and fast pulse response were demonstrated. A five-step microwave compatible fabrication process was utilized to fabricate the devices. The solarblind detectors displayed extremely low dark current values: 30lm diameter devices exhibited leakage current below 3fA under reverse bias up t...