发明名称 |
Spectroscopic ellipsometry apparatus including an optical fiber |
摘要 |
A spectroscopic ellipsometer comprises a wideband light source, together with a first optical system including a rotating polarizer which applies a parallel beam to a sample contained in an enclosure. The reflected beam is picked up by an analyzer in a second optical system which transmits said reflected beam to a monochromator which is followed by a photodetector which is connected to control electronics connected, in turn, to a microcomputer. An optical fiber is provided between the source and the first optical system. Advantageously, a second optical fiber provided between the second optical system and the monochromator.
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申请公布号 |
US5329357(A) |
申请公布日期 |
1994.07.12 |
申请号 |
US19930050766 |
申请日期 |
1993.04.21 |
申请人 |
SOPRA-SOCIETE DE PRODUCTION ET DE RECHERCHES APPLIQUEES |
发明人 |
BERNOUX, FRANCK;STEHLE, JEAN-LOUIS |
分类号 |
G01J3/12;G01N21/21;(IPC1-7):G01N21/21 |
主分类号 |
G01J3/12 |
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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