Knoll B, Keilmann F
Max-Planck-Institut für Biochemie, Martinsried, Germany.
J Microsc. 1999 May-Jun;194(Pt 2-3):512-5. doi: 10.1046/j.1365-2818.1999.00496.x.
We explore the performance of a scanning near-field infrared microscope, which works by scattering tightly focused CO2 laser radiation (lambda = 10 microm) from the apex of a metallized atomic force microscope tip. The infrared images of test samples prove a spatial resolution of 30 nm and are free of topographical and inertial artefacts, thus they should be of great interest for practical applications. We also observe that the infrared contrast vanishes when the input beam polarization is orthogonal to the tip axis, in accordance with theoretical expectations for a mechanism of longitudinal field interaction.
我们研究了一种扫描近场红外显微镜的性能，该显微镜通过从金属化原子力显微镜探针尖端散射紧密聚焦的二氧化碳激光辐射（波长 = 10 微米）来工作。测试样品的红外图像显示出 30 纳米的空间分辨率，并且没有地形和惯性伪像，因此它们对于实际应用应该具有很大的吸引力。我们还观察到，当输入光束偏振与探针轴正交时，红外对比度消失，这与纵向场相互作用机制的理论预期一致。
