Thomas Walther

4 Questions 211 Answers 0 Followers

Questions related from Thomas Walther

Does anybody know the surface plasmon energy of zinc oxide?

The bulk plasmon energy of ZnO is 18.8eV so ofr a thin foil I expect a surface plasmon at around 10eV. Does anybody know a reference where this was actually measured to within eV accuracy or better?

09 November 2017 1,995 5 View

What are the smallest nano-structures made by FIB?

Focused ion beam (FIB) instruments can provide beams with a diameter (FWHM) of less than 10nm, however, the interaction between ions and target occurs over a large volume, given by the influence...

07 May 2016 8,809 4 View

What are the design constraints for efficient THz emitters and detectors?

What are the design constraints for efficient emitters and detectors in the terahertz (THz) range, and are they identical? What are the most efficient solutions that do not need cooling by liquids?

29 April 2016 9,151 0 View

Is there another analytical method to reliably measure the chemistry of planar faults in crystals or grain boundary segregation to < 0.1 monolayers?

Together with co-workers from Ljubljana, we have devised a simple method to measure the chemical composition of a planar fault in a crystal or grain boundary segregation to better than 1/10 of an...

02 December 2014 925 1 View