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Optical cavity cooling of mechanical modes of a semiconductor nanomembrane
A novel mechanism for cooling nanomechanical objects has now been demonstrated. Optically excited electron–hole pairs produce a mechanical stress that damps the motion of a gallium arsenide membrane. In this way, the nanoscale resonator is cooled from room temperature to 4 K.
- K. Usami
- , A. Naesby
- & E. S. Polzik