Search tips
Search criteria 


Logo of nihpaAbout Author manuscriptsSubmit a manuscriptHHS Public Access; Author Manuscript; Accepted for publication in peer reviewed journal;

Fig. 7

An external file that holds a picture, illustration, etc.
Object name is nihms50361f7.jpg

Trapping of a 100 nm bead in the hardware-feedback ABEL trap. a) Image of a trapped bead obtained by averaging 11 video frames (corresponding to 1 s of data). b) Histogram of voltages applied along the x-axis to keep the bead trapped. c) Impulse response function of the feedback electronics. The latency is dominated by the cruddy SR844 lock-in amplifier. d) Power spectrum of the voltage oscillations (blue), and fits based on Eq. 5 including the effect of measurement noise (red), and without measurement noise (black).

Images in this article

  • Fig. 1
  • Fig. 2
  • Fig. 3
  • Fig. 4
  • Fig. 5
  • Fig. 6
  • Fig. 7
  • Fig. 8
  • Fig. 9
  • Fig. 10
Click on the image to see a larger version.