We report a fibre amplifier array that not only achieves coherent beam combination by compensation of phase noises of fibre amplifier, but also accomplishes cor
A novel method to measure acoustic power of focusing transducer based on the self-reciprocity theorem of con vergent spherical acoustic wave is proposed. The pe
The focusing properties of fractal zone plates (FZPs) with different structure parameters are studied experimen-tally. The axial irradiance of FZPs is deduced a
We analyse the Casimir effect for parallel plates atfinite temperature in the presence of compactified universal extra dimensions and analytically show the ther