A Novel Ultra-high Q Buckle-free Large Silica Rib Microdisk with Sub-Micron Thickness

In this work we demonstrate a novel buckle-free 1-millimeter-diameter silica rib microdisk with sub-micron thickness. Using this geometery, an optical quality factor as high as
$1.2\times 10^{7}$
at 970 nm wavelength is reported. © 2021 The Author(s)