| 摘要 |
A laser and method of operating same wherein an optical resonator which receives a gas from supersonic nozzle includes a fully reflective mirror and an oppositely disposed mirror partially transmissive by reason of hole coupling. The partially transmissive mirror does not include a permanently mounted transmitting window during operation. During startup, the holes are covered by a shutter or the like and after the laser has been started aerodynamically, the holes are uncovered.
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