https://www.selleckchem.com/ALK.html
The characteristics in terms of agility, coherence, and precision are discussed together with the potential limitations. The proposed method is capable of generating arbitrary frequency-modulated optical waveforms with a multiplied bandwidth, showing attractive potential in future metrology applications.We have theoretically investigated the use of a simple combined amplitude structure to produce a sub-diffracted Bessel beam via diffraction interference. This powerful structure is composed of a spiral slit and radial grating. When a vortex beam illu
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