Abstract
Miniaturization of optoelectric devices is based on the integration of materials in nanometer scale. Utilizing gold nanowires’ good manipulability, electrical and optical conduction performance, we provide an effective laser assisted welding method to implement the joining of materials. This welding method provides a promising and simple technology for future integration techniques.
Highlights
High-intensity lasers can heat solid density plasmas to high temperatures
There are two different approaches to overcome this obstacle: generating a preplasma or structuring the irradiated surface [1]. Arrays of nanoparticles such as nanowires have been shown to facilitate a high absorption of the laser light
The efficient coupling of the laser energy to the material can be attributed to locally enhanced electric fields in the vicinity of the nanoparticles
Summary
High-intensity lasers can heat solid density plasmas to high temperatures. The formation of a highly conductive plasma surface will, limit the penetration depth to a thin surface layer. There are two different approaches to overcome this obstacle: generating a preplasma (by using a prepulse) or structuring the irradiated surface [1]. Arrays of nanoparticles such as nanowires have been shown to facilitate a high absorption of the laser light. They typically have a high average density and a high (solid) local density. Due to the high absorption of the laser energy, highly energetic electrons are produced, which can emit X-ray pulses [3] of down to subpicosecond duration [4] of up to several hundred keV [5]. Other fields of application of laserproduced plasmas are accelerated MeV ions [7] and the generation of fusion neutrons [8]
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