Title :
Infrared optical properties of lanthanum strontium cobalt thin films
Author :
Wang, G.S. ; Hu, Z.G. ; Huang, Z.M. ; Wang, X.G. ; Lin, T. ; Chen, J. ; Meng, X.J. ; Chu, J.H.
Author_Institution :
Shanghai Inst. of Tech. Phys., Chinese Acad. of Sci., China
Abstract :
The infrared optical constants of lanthanum strontium cobalt oxide (LSCO) thin films are obtained by infrared spectroscopic ellipsometry in the wavelength range of 2.5/spl sim/12.5 /spl mu/m. The absorption coefficient is greater than 10000 cm/sup -1/. The infrared reflection and transmittance measurements showed the LSCO thin films with a thickness of 300 nm absorb significant infrared light. La/sub 0.5/Sr/sub 0.5/CoO/sub 3/ can absorb much more infrared light than La/sub 0.7/Sr/sub 0.3/CoO/sub 3/ with the same thickness. The LSCO thin films are suitable for infrared sensor applications as electrode and blacking layer.
Keywords :
cobalt compounds; infrared detectors; infrared spectra; lanthanum compounds; metallic thin films; optical constants; strontium compounds; 10000 cm/sup -1/; 2.5 to 12.5 micron; 300 nm; IR optical properties; IR sensor applications; LSCO thin films; La/sub 0.5/Sr/sub 0.5/CoO/sub 3/; La/sub 0.7/Sr/sub 0.3/CoO/sub 3/; absorption coefficient; infrared optical constants; infrared reflection measurements; infrared spectroscopic ellipsometry; infrared transmittance measurements; metallic thin films; Cobalt; Electromagnetic wave absorption; Ellipsometry; Infrared spectra; Lanthanum; Optical films; Optical reflection; Optical sensors; Spectroscopy; Strontium;
Conference_Titel :
Infrared and Millimeter Waves, 2002. Conference Digest. Twenty Seventh International Conference on
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-7423-1
DOI :
10.1109/ICIMW.2002.1076140
