Abstract
We present an experimental apparatus to control and visualize the response of a liquid target to a laser-induced vaporization. We use a millimeter-sized drop as target and present two liquid-dye solutions that allow a variation of the absorption coefficient of the laser light in the drop by seven orders of magnitude. The excitation source is a Q-switched Nd:YAG laser at its frequency-doubled wavelength emitting nanosecond pulses with energy densities above the local vaporization threshold. The absorption of the laser energy leads to a large-scale liquid motion at time scales that are separated by several orders of magnitude, which we spatiotemporally resolve by a combination of ultra-high-speed and stroboscopic high-resolution imaging in two orthogonal views. Surprisingly, the large-scale liquid motion upon laser impact is completely controlled by the spatial energy distribution obtained by a precise beam-shaping technique. The apparatus demonstrates the potential for accurate and quantitative studies of laser-matter interactions.
| Original language | English |
|---|---|
| Article number | 095102 |
| Number of pages | 20 |
| Journal | Review of Scientific Instruments |
| Volume | 88 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 1 Sept 2017 |
| Externally published | Yes |
Funding
We thank Chris Lee, Guillaume Lajoinie, Claas Willem Visser, Adam Lassise, Riëlle de Ruiter, Stefan Karpitschka, Henri Lhuissier, and Stefan Bäumer for fruitful discussions. Furthermore, we acknowledge Koen Arens and Martijn van Gestel for their support in the absorption measurements. This work is part of an Industrial Partnership Programme of the Netherlands Organization for Scientific Research (NWO). This research programme is co-financed by ASML.