利用光栅动量测量辐射压
Measurements of Radiation Pressure owing to the Grating Momentum
摘要：
测量了波长为808 nm和447 nm的薄透射式熔融石英光栅在利特罗角附近的辐射压力对光栅动量的作用力。在平行于光栅表面的方向上测量到显著大小的力。我们还证实了垂直于光栅表面的力的分量可以为零。这种强迫定律的特点是不同于反射表面上的辐射压力，因此，为光驱动的应用，如太阳能或激光驱动的帆船，或液体中的物体的运输开辟了新的机会。
英文摘要：
The force from radiation pressure owing to the grating momentum was measured for a thin transmissive fused silica grating near the Littrow angles at wavelengths of 808 nm and 447 nm. A significant magnitude of force was measured in the direction parallel to the grating surface. We also confirmed that the component of force normal to the grating surface may vanish. This forcing law is characteristically different from radiation pressure on a reflective surface, and thus, opens new opportunities for light-driven applications such as solar or laser driven sailcraft, or the transport of objects in liquids.
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