77 citations · 154 across the 4 of their papers we have counts for
4 papers
Observation of optomechanical buckling phase transitions
Haitan Xu, Utku Kemiktarak, Jingyun Fan +3
Correlated phases of matter provide long-term stability for systems as diverse as solids, magnets, and potential exotic quantum materials. Mechanical systems, such as relays and bu…
From membrane-in-the-middle to mirror-in-the-middle with a high-reflectivity sub-wavelength grating
Corey Stambaugh, Haitan Xu, Utku Kemiktarak +2
We demonstrate a "membrane in the middle" optomechanical system using a silicon nitride membrane patterned as a subwavelength grating. The grating has a reflectivity of over 99.8%,…
Mode competition and anomalous cooling in a multimode phonon laser
Utku Kemiktarak, Mathieu Durand, Michael Metcalfe +1
We study mode competition in a multimode "phonon laser" comprised of an optical cavity employing a highly reflective membrane as the output coupler. Mechanical gain is provided by…
Mechanically Compliant Grating Reflectors for Optomechanics
Utku Kemiktarak, Michael Metcalfe, Mathieu Durand +1
We demonstrate micromechanical reflectors with a reflectivity as large as 99.4% and a mechanical quality factor Q as large as 7.8*10^5 for optomechanical applications. The reflecto…