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The absence of on-line monitoring and process quality assurance is one of the main obstacles for wide implementation of Selective Laser Melting technology in modern manufacturing industry. Temperature monitoring in the laser impact zone are carried out by an originally developed bicolour pyrometer and CCD camera which are integrated with the optical scanning system of the PHENIX PM-100 machine. Experiments are performed with variation of basic process parameters such as powder layer thickness (0-120 µm), hatch distance (60 µm-1000 µm), and fabrication strategy (the so-called "one-zone" and "two-zone").

A storage system using fused silica is a promising way to store historically valuable data permanently. To increase recording capacity, we studied the recording and reading conditions for a multilayer sample. The 26-layer sample, which had a recording capacity equivalent to that of a digital versatile disc (DVD), was made with a femtosecond laser and a spatial light modulator (SLM). The recording pulse energy and interlayer crosstalk were reduced by correcting spherical aberration. The sample was evaluated and read with an optical microscope. The signal-to-noise ratio (SNR) criterion of 15 dB was satisfied in all 26 layers by using signal processing. Thermal resistance at 1,000 °C for 120 minutes was demonstrated, suggesting a semi-permanent lifetime.

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