Submicron Surface Vibration Profiling Using Doppler Self-Mixing Techniques

<table>Spectrogram for a self-mixing signal at a 20 Hz vibration of the actuator ACT. Conventional gray scale representing the top 50 dB of the signal.</table>

Advances in Optics

fig5

Figure 5

Figure 5: Submicron Surface Vibration Profiling Using Doppler Self-Mixing Techniques 