Figure 5
From: Giant resonant light forces in microspherical photonics

Probability distribution histograms for vmax values measured for spheres with different mean diameters D: (a) –3 µm, (b) –5 µm, (c) –7 µm, (d) –10 µm, (e) –15 µm, (f) –20 µm. For each mean diameter up to 20–40 measurements were performed using spheres with random ∼1% diameter variations. The fitting curves in a–c are represented by normalized Gaussian probability density distributions, f≈exp[(vmax–vmax0)2/2σ2], where vmax0 is the average vmax and σ is the standard deviation. It is seen that for small 3≤D≤7 µm spheres the distributions have Gaussian shape with narrow width σ/vmax0≈15%. For large 15≤D≤20 µm spheres the distributions are extremely wide. The case of 10 µm spheres can be considered as a transitional between these two situations.