Papers by Author: F. Marty

Abstract: We present our efforts to design, manufacture, and characterize a capillary viscometer aimed at performing very high shear rate rheology of complex fluids, and fabricated using hybrid MEMS/microfluidic technology. We demonstrate that microfluidic and MEMS technologies can be combined to integrate fluidic channels with microfabricated stress and flow sensors, enabling rheological measurements at shear rates up to 500000s-1 and beyond.

Abstract: This papers deals with the study of novel building blocks suitable for architectures of MEMS tunable lasers integrated in SOI platforms. These building blocks are based on the use of 1D photonic crystals (1D PCs) made of silicon-air thin layers stacks. These provide high reflectivity in certain wavelength range as well as access to simple Fabry-Perot cavities. The latter was studied more in detail and simulations are presented along with preliminary experimental results. A tilted Fabry-Perot cavity was analyzed for its potential of mode selector to prevent for mode hopping and thus enable continuous mode tuning by control of separation gap. As 1D PCs exhibit dispersion characteristics, this behavior is analyzed as well for its potential use for compensation purposes of wavelength dependence of the refractive index in the III-V gain medium.