Kadri Shahrul, Fujiwara Hideki, Sasaki Keiji
Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0020, Japan.
Opt Express. 2011 Jan 31;19(3):2317-24. doi: 10.1364/OE.19.002317.
We observe Fano-like resonance in the vibration spectrum of an optically driven atomic force microscope cantilever system. The vibration of the cantilever is photothermally induced by exciting it with a 780-nm laser diode. The asymmetry of the resonance curve strongly depends on the position of the excitation spot along the central axis of the cantilever. By using a simple physical model, we could extract and analyze the hidden resonance and continuous components in the vibration spectrum.
我们在光驱动原子力显微镜悬臂系统的振动光谱中观察到类法诺共振。通过用780纳米激光二极管激发悬臂，其振动由光热效应诱导产生。共振曲线的不对称性强烈依赖于激发光斑沿悬臂中心轴的位置。通过使用一个简单的物理模型，我们能够提取并分析振动光谱中隐藏的共振和连续成分。
