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We present integrated optomechanical transducers with exposed tips and demonstrate ultrahigh force sensitivity and large bandwidth. The transducer is implemented as an atomic force microscope probe in the contact mode and nanoscale resolution is demonstrated.
Pump-probe measurements on InP photonic-crystal nanocavities show large-contrast fast switching at low pulse energy. For large pulse energies, large resonance shifts passing across the probe lead to switching contrast saturation and switching time-window broadening.
We experimentally observe in situ the resonance due to an integrated resonant cavity inside a parallel-plate waveguide excited by the TE1 mode. We also observe a field enhancement associated with this narrowband resonance.
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