发明名称 |
Intracavity laser spectroscopy for high sensitivity detection of contaminants in gas |
摘要 |
Contaminants are detected optically at concentrations below 1 part-per-million (ppm) and extending to a level approaching 1 part-per-trillion (ppt) by using intracavity laser spectroscopy (ILS) techniques. A solid-state laser with an ion-doped crystal medium contained in an optical resonator cavity (the ILS laser) is employed as a detector. A gas sample containing gaseous contaminant species is placed inside the optical resonator cavity and on one side of the ion-doped crystal. The output signal from the ILS laser is detected and analyzed to identify the gaseous species. The concentration of the gaseous species can be determined as well.
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申请公布号 |
US5841533(A) |
申请公布日期 |
1998.11.24 |
申请号 |
US19970874960 |
申请日期 |
1997.06.13 |
申请人 |
INNOVATIVE LASERS CORPORATION |
发明人 |
ATKINSON, GEORGE H. |
分类号 |
G01N21/35;G01N21/39;H01S5/14;(IPC1-7):G01N21/35;G01J3/10;G01J3/42 |
主分类号 |
G01N21/35 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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