We present experimental evidence of the optical spring effect in a silica microtoroid resonator. The variation of the measured mechanical resonant frequency as a function of optical power, optical coupling, and optical detuning is in very good agreement with a model for radiation-pressure-induced rigidity in a silica microtoroid.
© 2007 Optical Society of America
Original Manuscript: February 6, 2007
Revised Manuscript: April 5, 2007
Manuscript Accepted: April 7, 2007
Published: June 5, 2007
Mani Hossein-Zadeh and Kerry J. Vahala, "Observation of optical spring effect in a microtoroidal optomechanical resonator," Opt. Lett. 32, 1611-1613 (2007)