Ultra-short pulsed laser welding
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As more understanding is gained about the way laser light interacts with materials, more laser materials processing is being undertaken by 'short pulse length' (or 'ultra-fast') pulsed lasers. For a given laser pulse energy, the shorter the pulse, the higher the peak laser power available. Materials processing applications have already been performed using pulses ~50 femtoseconds (50 x 10-15 seconds) in duration and producing peak powers in the terra watt range, using commercially available lasers. In this presentation, Dr Richard Carter will consider how ultra-short pulsed laser welding can be applied to the joining of dissimilar materials.
