Ab. Sushkov et Ea. Tishchenko, LOW-TEMPERATURE FAR-INFRARED ELLIPSOMETRY OF CONVERGENT-BEAM, International journal of infrared and millimeter waves, 14(12), 1993, pp. 2555-2568
Development of an ellipsometry to the case of a coherent far infrared
irradiation, low temperatures and small samples is described, includin
g a decision of the direct and inverse problems of the convergent beam
ellipsometry for an arbitrary wavelength, measurement technique and a
compensating orientation of cryostat windows. Experimental results ar
e presented: for a gold film and UBe13 Single crystal at room temperat
ure (lambda = 119 mum), temperature dependencies of the complex dielec
tric function of SrTiO3 (lambda = 119, 84 and 28 mum) and of YBa2Cu3O7
-delta Ceramic (lambda = 119 mum).