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An easy technique for focus characterization and optimization of XUV and soft x-ray pulses

Autor: Muschet, A. A., De Andres, A., Smijesh, N., Veisz, L.

For many applications of extreme ultraviolet (XUV) and x-ray pulses a small focus size is crucial to reach the required intensity or spatial resolution. In this article, we present a simple way to characterize an XUV focus with a resolution of 1.85 m

Externí odkaz: http://arxiv.org/abs/2205.07600

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Effect of double pulse irradiation on the morphology of a picosecond laser produced chromium plasma

Autor: Rao, Kavya H., Smijesh, N., Chetty, D., Litvinyuk, I. V., Sang, R. T.

We describe the measurements to control the morphology and hence the characteristics of a picosecond laser produced chromium plasma plume upon double-pulse (DP) irradiation compared to its single-pulse (SP) counterpart. DP schemes are realized by emp

Externí odkaz: http://arxiv.org/abs/1808.08678

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Time-resolved optical emission spectroscopic studies of picosecond laser produced Cr plasma

Autor: Rao, Kavya H., Smijesh, N., Klemke, N., Philip, R., Litvinyuk, I. V., Sang, R. T.

Time-resolved optical emission spectroscopic measurements of a plasma generated by irradiating a Cr target using 60 picosecond (ps) and 300 ps laser pulses is carried out to investigate the variation in the linewidth ($\delta\lambda$) of emission fro

Externí odkaz: http://arxiv.org/abs/1802.07436

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Plasma plumes produced by laser ablation of Al with single and double pulse schemes

Autor: Smijesh, N, Rao, Kavya H., Chetty, D., Litvinyuk, I. V., Sang, R. T.

We generated and characterized plasma with single and double picosecond laser pulses in order to study the plume dynamics and to control the plasma properties. The double-pulse scheme was found to be superior for the generation of a homogeneous plasm

Externí odkaz: http://arxiv.org/abs/1711.00633

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Spectral and temporal characterization of nanosecond and femtosecond laser produced plasma from metallic targets

Autor: Smijesh, N.

Experimental characterization and comparison of the temporal features of plasma produced by ultrafast (100 fs, 800 nm) and short-pulse (7ns, 1064 nm) laser pulses from a high purity nickel and zinc targets, expanding into a nitrogen background, are p

Externí odkaz: http://arxiv.org/abs/1504.05733

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