Slab laser with stand-off for ceramic spacers
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United States of America Patent
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Jun 28, 2011
Grant Date -
Feb 5, 2009
app pub date -
Jul 2, 2008
filing date -
Jul 30, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An RF excited gas discharge laser is disclosed including a housing holding the lasing gas. An electrode assembly is mounted within the housing. The electrode assembly includes a pair of elongated planar electrodes mounted in face to face relationship with a narrow gap therebetween. A pair of planar dielectric plates are positioned along the side edges of the gap to seal the discharge region. The plates extend part of the way into the gap from both sides edges of the electrodes. The inner surfaces of the electrodes are provided with an opposed trench in the region surrounding the inner edges of the plates. In this way, the exposure of the inner edges of the plates to the discharge is minimized improving performance.
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