Interference Phenomena Observed on an Atomic Force Microscope Cantilever by Laser Confocal Microscopy
Interference Phenomena Observed on an Atomic Force Microscope Cantilever by Laser Confocal Microscopy
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激光共焦显微镜观察原子力显微镜悬臂梁上的干涉现象
DOI：
10.1143/jjap.50.08lb17
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发表时间：
2011
影响因子：
1.5
通讯作者：
N. Goto
中科院分区：
文献类型：
--
作者：
S. Yanagiya;N. Goto
利用激光共聚焦显微镜（LCM）研究了原子力显微镜悬臂梁上的干涉现象。首先，我们建立了一个简单的模型，并计算了条纹间隔。在以下条件下观察到干涉条纹图案：（1）改变LCM的焦点和共焦孔径;（2）通过在悬臂梁和玻璃板上溅射TiO 2来增加反射率;（3）将玻璃板和悬臂梁之间的空间中的介质从空气改变为水。先前的实验的目的是测量水的折射率。从理论上确定，条纹间隔不依赖于从表面的悬臂梁的高度，但对波长，折射率，和悬臂梁的倾斜角。实验结果表明：（1）当使用单色激光时，干涉条纹的间隔与共焦平面无关;（2）当使用涂有TiO_2的悬臂梁和玻璃板时，观察到了一条尖锐的干涉条纹;（3）可以测量少量水的折射率。
We investigated interference phenomena that were observed on a cantilever bar of an atomic force microscope by using a laser confocal microscope (LCM). First, we established a simple model and calculated the fringe interval. Interference fringe patterns were observed under the following conditions: (1) changing the focus and confocal aperture of the LCM, (2) increasing the reflectance by sputtering TiO2 on the cantilever bar and glass plate, and (3) changing the medium from air to water in the space between the glass plate and the cantilever. The purpose of a previous experiment was to measure the refractive index of water. It was theoretically determined that the fringe interval depended not on the height of the cantilever from the surface but on the wavelength, refractive index, and tilt angle of the cantilever. We obtained the following experimental results: (1) the fringe interval was independent of the confocal plane when using a monochromatic laser, (2) a sharpened interference fringe was observed when we used a TiO2-coated cantilever and glass plate, and (3) the refractive index of a small quantity of water could be measured.
激光共聚焦显微镜原位观察蛋白质晶体表面的基本生长台阶
DOI：
--
发表时间：
2004
期刊：
J.Crystal Growth 262
影响因子：
--
作者：
G.Sazaki;et al.
通讯作者：
et al.