School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA.
Opt Lett. 2012 Feb 15;37(4):539-41. doi: 10.1364/OL.37.000539.
We demonstrate waveguide-coupled titanium dioxide (TiO(2) racetrack resonators with loaded quality factors of 2.2×10(4) for the visible wavelengths. The structures were fabricated in sputtered TiO(2) thin films on oxidized silicon substrates using standard top-down nanofabrication techniques, and passively probed in transmission measurements using a tunable red laser.
我们展示了波导耦合的二氧化钛(TiO(2))赛道环形谐振器,其在可见光波长下的负载品质因数为 2.2×10(4)。这些结构是在氧化硅衬底上的溅射 TiO(2)薄膜中使用标准的自上而下的纳米制造技术制造的,并在使用可调谐红色激光的传输测量中进行了被动探测。