Potassium Titanyle Arsenate (KTiOAsO4), ama KTA crystal, waa kiristaalo aan toos ahayn oo aad u fiican oo loogu talagalay codsiga Oscillation Optical Parametric (OPO).Waxay leedahay iskudhafyo indho-indhayn ah oo aan toos ahayn iyo koronto-optical optical, si weyn u yareeyey nuugista gobolka 2.0-5.0 µm, xagalka ballaaran iyo baaxadda heerkulka, joogtooyinka dielectric hooseeya.