发明名称 |
SCAN TYPE PROBE MICROSCOPE AND CANTILEVER DRIVE DEVICE |
摘要 |
A driving laser unit (11) irradiates a laser beam on a cantilever (5) to cause thermal expansion deformation. A driving-laser control unit (13) performs feedback control for the cantilever (5) by controlling intensity of the laser beam on the basis of displacement of the cantilever (5) detected by a sensor (9). A thermal-response compensating circuit (35) has a constitution equivalent to an inverse transfer function of a heat transfer function of the cantilever (5) and compensates for a delay in a thermal response of the cantilever (5) to the light irradiation. Moreover, the cantilever (5) may be excited by controlling the intensity of the laser beam. By controlling light intensity, a Q value of a lever resonance system is also controlled. It is possible to increase scanning speed of an atomic force microscope. |
申请公布号 |
EP1898204(A1) |
申请公布日期 |
2008.03.12 |
申请号 |
EP20060756635 |
申请日期 |
2006.05.26 |
申请人 |
NATIONAL UNIVERSITY CORPORATION KANAZAWA UNIVERSITY |
发明人 |
ANDO, TOSHIO;UCHIHASHI, TAKAYUKI;KODERA, NORIYUKI;YAMASHITA, HAYATO |
分类号 |
G01Q60/24;G01Q10/00;G01Q10/06;G01Q20/02;G01Q60/00 |
主分类号 |
G01Q60/24 |
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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