H.J. Mamin, T.H. Oosterkamp, et al.
Nano Letters
We cool the fundamental mechanical mode of an ultrasoft silicon cantilever from a base temperature of 2.2 K down to 2.9±0.3mK using active optomechanical feedback. The lowest observed mode temperature is consistent with limits determined by the properties of the cantilever and by the measurement noise. For high feedback gain, the driven cantilever motion is found to suppress or "squash" the optical interferometer intensity noise below the shot noise level. © 2007 The American Physical Society.
H.J. Mamin, T.H. Oosterkamp, et al.
Nano Letters
C.L. Degen
Applied Physics Letters
H.J. Mamin, R.P. Ried, et al.
INVMTC 1998
B.D. Terris, R.C. Barrett, et al.
SPIE OE/LASE 1993