Heterogeneous angularly colliding (Al-Cu) laser-produced plasmas and film deposition

The dynamics of heterogeneous angularly colliding (Al-Cu) laser-produced plasmas with varying input laser pulse energies on each target are studied using fast imaging and optical emission spectroscopic techniques. The stagnation layer formed at the collision front consists of both Al and Cu species, and its intensity varied with the variation in laser pulse energy. Multispecies stagnation region formation and the variation of spectral line intensity with laser pulse energy are studied using the optical emission spectroscopic technique. The depositions of interaction regions are analyzed using the XRD, EDAX, FESEM, and AFM techniques. The intermetallic compound formation is possible using this technique, and the composition can be varied by varying the input laser pulse energies. The major benefits are the flexibility of controlling parameters and the simplicity of experimental setup for the formation of intermetallic compounds. Thus, angular target geometry for colliding laser-produced plasma is proposed to efficiently mix different metals with control over the composition of deposited films.

Automated summary

The dynamics of heterogeneous angularly colliding (Al-Cu) laser-produced plasmas with varying input laser pulse energies on each target are studied. The formation and composition of intermetallic compounds are analyzed using advanced techniques, showing the potential for flexible control over the deposition process.