Engineering Commons^™

Design And Development Of Optical Waveguide Architectures For Real-Time Temperature Monitoring In Extreme Environments, Bahareh Badamchi

Boise State University Theses and Dissertations

This dissertation prompts on the research and development of a new real-time, reusable, and reversible optical sensor for integrated temperature monitoring in harsh environments. This is achieved through integrating the photonic properties of optical waveguides/optical fiber and the phase change properties of chalcogenide glasses (ChGs). ChG materials have very specific crystallization temperatures beyond which these materials transform from being a dielectric material to a metallic material. When such ChG material is coated over a dielectric optical waveguide, in the crystalline phase, highly localized surface plasmon polariton (SPP) modes are generated at the waveguide: metallic ChG interface. In this case, the …

Radiation-Induced Effects In Chalcogenide-Based Memory Devices And Films, Kasandra Wolf

Boise State University Theses and Dissertations

Continued scaling of memory devices has produced many issues for the current foremost non-volatile memory—the flash memory—leading to the emergence of a wide variety of alternative memory solutions. Redox Conductive Bridge Memory (RCBM) is one such solution that has shown great promise in recent years. However, the performance of these devices under radiation conditions has not been explored in detail. This work investigates the effects of x-rays and electron bombardment on chalcogenide glasses and RCBM devices based on these materials.

RCBM devices are a form of Resistance Change Memory, which rely on two distinct resistive states to represent the binary …

Nano-Ionic Radiation Sensor: Materials Engineering, Device Design, And Testing, Mahesh Satyanarayana Ailavajhala

Boise State University Theses and Dissertations

For decades, various radiation-detecting materials have been extensively researched, to find a better material or mechanism. Recently, there has been a growing need for smaller, and more effective materials or devices that are Integrated Circuits (IC) compatible, and can perform similar functions as bulkier Geiger counters, and other measurement options, which fail the requirement for easy, cheap, and accurate radiation dose measurements. Here arises the use of thin films of chalcogenide glasses, which have unique properties of high thermal stability along with high sensitivity towards short wavelength radiation.

In this work, the effect of γ-rays, generated from a ⁶⁰Co …