Some nice images from the Hong group
Silica nanoparticle levitated in an optical tweezer
Microtoroid optical resonator coupled with a tapered fiber (side view)
Microtoroid optical resonator coupled with a tapered fiber (top view)
The science chamber encloses a high-NA objective for an optical tweezer and two nanopositioners for microtoroid resonators and tapered fiber.
Science chamber: from the top
Inside the chamber are a high-NA objective and two three-axis nanopositioners that separately hold a microtoroid sample and a tapered fiber.