There are additional better ways to examine the structures.
a laser microscope can examine the structure of the rectangular objects. I have used a laser microscope to scan micron-sized structures on leading edge semiconductors. However, these are million-dollar machines and not common but use of one might be borrowed in Silicon Valley.
There are many research institutions that charge an hourly rate for the instrument and another rate if you want their technicians to do the work. It is much cheaper than you'd think.
I guess a class of less expensive laser microscopes emerged for 'desktop' use after my time working with the expensive ones. The ones I worked with used complex vibration-isolation means, air bearings, and a lot of control mechanisms, control electronics, and software. These were used by big companies and three-letter agencies.
There are additional better ways to examine the structures.
There are many research institutions that charge an hourly rate for the instrument and another rate if you want their technicians to do the work. It is much cheaper than you'd think.
I guess a class of less expensive laser microscopes emerged for 'desktop' use after my time working with the expensive ones. The ones I worked with used complex vibration-isolation means, air bearings, and a lot of control mechanisms, control electronics, and software. These were used by big companies and three-letter agencies.