Anybody seen all those Raicol KTP crystals floating around ebay? There are a few sellers lately selling lots of them. See here:
http://tinyurl.com/22djvx
http://tinyurl.com/2hb2bo
The second seller has 100. What I want to know is can these crystals be used without DBAR 1064/532 coatings on them? Seems like a lot of them are uncoated. I bought one cheap and will report back if it has any coatings. It was shorter (5.5mm) so it was 'possibly' repolished/recoated.