|Title||Optical and nanomechanical chararacterization of a tin sulfide-silica multilayer system|
|Year of Publication||2003|
|Authors||Deopura, M, Fink, Y, Schuh, CA|
|Corporate Authors||Shaw, LL, Suryanarayana, C, Mishra, RS|
A tin sulfide-silica multilayer system has been developed and characterized for optical as well as nanomechanical properties. This multilayer system acts as a I-D photonic band-gap material and exhibits omnidirectional reflectivity for visible wavelengths. A refractive index contrast of 2.6/1.46 is achieved, one of the highest values demonstrated until now in photonic band-gap systems for the visible frequency range. Instrumented nanoindentation procedures have also been developed to assess Young's modulus and hardness for these very fine laminates, and reveal that the mechanical properties are in line with expectations based on a rule-of-mixtures composite model.