How is Mechanical Resonance Measured in Nanotechnology?
Several techniques are used to measure mechanical resonance in nanotechnology:
1. Atomic Force Microscopy (AFM): AFM can be used to measure the vibrational modes of nanostructures. The cantilever of an AFM can be excited to resonate, and its response can be monitored to deduce the resonant frequency.
2. Laser Doppler Vibrometry: This technique uses laser beams to measure the velocity and displacement of vibrating nanostructures. It offers high precision and is non-contact, making it suitable for delicate nanoscale measurements.
3. Optical Interferometry: This technique involves the interference of light waves to measure the displacement and resonance frequency of nanostructures. It is highly sensitive and can provide real-time monitoring.
