Characterization of silicon layers via guided wave optics

Autor: Michel Olivier, Jean‐Claude Peuzin
Rok vydání: 1978
Předmět:
Zdroj: Applied Physics Letters. 32:386-388
ISSN: 1077-3118
0003-6951
DOI: 10.1063/1.90063
Popis: The usefulness of guided wave optics as a tool for characterizing general purpose thin films is demonstrated in two cases of practical interest, i.e., silicon on sapphire and amorphous silicon on glass. Important results are as follows: (i) optical wave propagation at λ=1.15 μm has been observed along a few millimeters in silicon layers; (ii) silicon on sapphire layers show a very high photoelastically induced quasiuniaxial birefringence (Δn≃0.02); (iii) amorphous silicon layers exhibit a nonrectangular index profile, a high birefringence (Δn≃0.02), and finally an anomalously low value of their mean ordinary index (n≃3.04±0.01).
Databáze: OpenAIRE