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LASER MICROMACHINING WITH TAILORED BURSTS OF SHORT LASER PULSES
LASER MICROMACHINING WITH TAILORED BURSTS OF SHORT LASER PULSES
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机译:短脉冲激光打尾的激光微加工
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摘要
A series of laser pulse bundles or bursts are used for micromachining target structures. Each burst includes short laser pulses with temporal pulse widths that are less than approximately 1 nanosecond. A laser micromachining method includes generating a burst of laser pulses and adjusting an envelope of the burst of laser pulses for processing target locations. The method includes adjusting the burst envelope by selectively adjusting one or more first laser pulses within the burst to a first amplitude based on processing characteristics of a first feature at a target location, and selectively adjusting one or more second laser pulses within the burst to a second amplitude based on processing characteristics of a second feature at the target location. The method further includes directing the amplitude adjusted burst of laser pulses to the target location.
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