3D Focal-Area Interference Patterning in Transparent Dielectrics
Ultrafast laser-matter interaction has emerged as a highly universal platform with unprecedented optical phenomena and implementation paths for advanced manufacturing. Researchers from Zhejiang A & F University report three-dimensional (3D) focal-area interference patterning in transparent dielectrics using Light Conversion’s PHAROS laser.
The femtosecond laser PHAROS combines millijoule pulse energies and high average powers. The laser features a mechanical and optical design optimized for industrial applications, such as precise material processing. The versatile design allows quick and seamless integration into machining workstations. Laser diodes pumping a Yb medium significantly reduce maintenance costs and provide a long laser lifetime. The flexibility of PHAROS allows the system to cover applications normally requiring different classes of lasers.
Tunable parameters include pulse duration (190 fs – 20 ps), repetition rate (single pulse to 1 MHz), pulse energy (up to 2 mJ) and average power (up to 20 W). Its power level is sufficient for most material processing applications at high machining speeds. The built‑in pulse picker allows convenient control of the laser output in pulse‑on‑demand mode. Due to the robust optomechanical design and thermal stabilization, the PHAROS laser system features stable laser operation across varying environments.
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