| 摘要 |
<p>A micro-machining apparatus includes a mode-locked, infrared laser system with a high reflector (14) and an output coupler (16) that define an oscillator cavity which produces an output beam. A gain medium (18) and a mode locking device (19) are positioned in the oscillator cavity. A diode pump source (20) produces a pump beam that is incident on the gain medium (18). A second harmonic generator (32) is coupled to the oscillator cavity. A third harmonic generator (36) is coupled to the second harmonic generator (32) and produces a UV output beam (40). An output beam directing apparatus directs the output beam (40) to a polymeric surface of an article. At least a portion of the polymeric material is micro-machined by the output beam (40).</p> |
