Ahmed Z. – TechConnect Briefs

Optofluidic Temperature and Pressure Measurements with Fiber Bragg Gratings Embedded in Microfluidic Devices

Cooksey G.A., Wright J.D., Ahmed Z., National Institute of Standards and Technology, US

(INTRODUCTION) The integration of photonic sensors into microfluidic devices provides opportunities for dynamic measurement of chemical and physical properties of fluids in very small volumes. Microfluidic platforms provide sub-microliter control of fluid transport and mixing [...]

Silicon Photonic Temeprature Sensors

Ahmed Z., NIST, US

For the past century, industrial temperature measurements have relied on resistance measurement of a thin metal wire or filament whose resistance varies with temperature. Though resistance thermometers can routinely measure industrial temperatures with uncertainties of [...]

Fabrication and Characterization of On-Chip Integrated Silicon Photonic Bragg Grating and Photonic Crystal Cavity Thermometers

Klimov N.N., Purdy T., Ahmed Z., National Institute of Standards and Technology / University of Maryland, US

Though today’s resistance thermometers can routinely measure temperatures with uncertainties of 10 mK, they are sensitive to environmental variables such mechanical shock and humidity, which cause the sensor resistance to drift over time requiring expensive, [...]