When you need precision movement, the alternative to micromanipulation is using a XY stage like ASML uses.
XY let's you hold an object like a wafer or part, and move it around in certain planes while not moving in others. XY and even XYZ stages are not uncommon in vacuum chambers where parts need moved but repeatability is key.
A similar optical pickup made of optical components from newport or thorlabs would run you a few thousand dollars, whereas these dvd optical pickups can be had for $10-20.
Here is another great paper (and accompanying youtube video) that shows optical trapping, atomic force microscopy, and even imaging with a dvd optical pickup.
ChrisMarshallNY•3mo ago
One of the nice things about hanging here, is seeing posts like this.
Of course, I suspect that I'll never have a use for this, myself.