发明名称 |
Microforce measurement method and apparatus |
摘要 |
A method and an apparatus for measuring the microforce acting between a micro particle fixed on the probe and the observation plane are described. The probe is feedback-controlled to be held motionless by canceling probe displacements caused by movements of the micro particle fixed on the probe, using irradiation pressure provided by a laser that applies photon pressure. The microforce acting between the micro particle fixed on the probe and the observation plane is measured by recording the time-varying laser output power. This allows probe fluctuations to be reduced to a few angstroms, and permits control of the distance to the target object to within a few nm, enabling measurement of microforces on the order of 0.1 pN.
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申请公布号 |
US2003086094(A1) |
申请公布日期 |
2003.05.08 |
申请号 |
US20020262067 |
申请日期 |
2002.10.02 |
申请人 |
KOJIMA HIROAKI;OIWA KAZUHIRO;BERNHARD BRENNER |
发明人 |
KOJIMA HIROAKI;OIWA KAZUHIRO;BERNHARD BRENNER |
分类号 |
G01B11/00;G01B5/28;G01B9/02;G01B11/02;G01Q20/02;G01Q60/24;G01Q60/38;G02B21/32;(IPC1-7):G01B11/02 |
主分类号 |
G01B11/00 |
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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