A SECRET WEAPON FOR FE²�?ZNS CRYSTAL

KLuS two one crystal samples undoped and doped which has a small (5 %) or significant (38 %) concentration of trivalent thulium or ytterbium ions had been synthesized in the form of thin hexagonal plates. The small phonon Power (�?20 cm ⁻�?) was verified making use of Raman spectroscopy. Samples have been analyzed also by using optical absorp