intensity 源码搜索结果, 第80页, Verysource

High-repetition-rate (≥ kHz) targets and optics from liquid micr... High-intensity laser–plasma interactions produce a wide array of energetic particles and beams with promising applications. Unfortunately, the high repetition rate and high average power requirements for many applications are not satisfied by the lasers, ...
Demonstration of high-dimensional free-space data coding/decodin... ... optical vortices are a kind of structured beams that carry orbital angular momentum (OAM) and have concentrical doughnut intensity distributions. In this Letter, we present both theoretically and experimentally a scheme that employs the dimensions of ...
Terahertz imaging using an optical frequency comb source Optical frequency combs, which are generated by the cascade of a phase modulator and a Mach–Zehnder intensity modulator, are used as a polychromatic signal source in the terahertz imaging system to improve imaging quality. The interference effect caused ...
Highly stable femtosecond pulse generation from a MXene Ti3C2Tx ... ... locked fiber laser. We have prepared the high-quality Ti3C2Tx nanosheets via the etching method, and characterized their ultrafast dynamics and broadband nonlinear optical responses. The obvious intensity- and wavelength-dependent nonlinear responses have
High efficiency generation of tunable ellipse perfect vector bea... We present a highly efficient method of generating and shaping ellipse perfect vector beams (EPVBs) with a prescribed ellipse intensity profile and continuously variant linear polarization state. The scheme is based on the coaxial superposition of two ...
Antimonene: a long-term stable two-dimensional saturable absorpt... ... material prepared using a liquid-phase exfoliation method was coated on a quartz/CaF2 for characterizations and an Au mirror as a reflection-type saturable absorber (SA) device. It has a modulation depth of 10.5%, a saturation peak intensity of 0.
Variation of the band structure in DKDP crystal excited by inten... ... with the Z-scan technique. Two critical intensities are highlighted: the critical intensity for exciting the NLA and the critical intensity of the ... of defect states located in the band gap, which can be manipulated by varying laser intensity. A model bas
Beam combination at any angles with a multilayer grating ... laser beams to coaxial ones, and the combined beams are able to output along the normal line of the grating. The intensity and the phase structure of combined beams can also be controlled. The experiments are carried out by loading an encoded grating on ...
Er-doped all-fiber laser mode-locked by graphitic carbon nitride... ... dispersion. The g-C3N4/polyvinyl alcohol (PVA) hybrid-film-based saturable absorber has a modulation depth of 4.01% and a saturation intensity of 7.5 MW/cm2. By integrating g-C3N4-PVA mode-locker into the laser cavity, a mode-locked operation could be ...
Full-transparent zone plates for THz focusing ... (THz) focusing without aberration. We find that the substrate thickness of the FTZP has a great influence on the focusing intensity, which results from the Fabry–Perot effect. The focusing efficiency of FTZPs could be about twice as high as that of FZPs, ...

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