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Analytical Modeling And Characterization For Avalanche Photodiodes, Erum Jamil
Analytical Modeling And Characterization For Avalanche Photodiodes, Erum Jamil
Optical Science and Engineering ETDs
For applications requiring the detection of low light levels, avalanche photodiodes (APDs) are the preferred detector of choice. The reason for this is their internal gain, which improves the APDs sensitivity (up to 5 − 10 dB) when compared to PIN-based photodiodes. The internal gain for an APD comes from the process of impact ionization process; however, due to its stochastic nature, the multiplication gain comes at the expense of extra noise. This multiplication noise, called the excess noise, is a measure of the gain uncertainty. Despite significant progress made in the fabrication process for the APDs, the excess noise …
Optimized Endpoint Delivery Via Unmanned Aerial Vehicles, Fuad Gazal
Optimized Endpoint Delivery Via Unmanned Aerial Vehicles, Fuad Gazal
All Graduate Theses, Dissertations, and Other Capstone Projects
Unmanned Aerial Vehicles (UAVs) are remotely piloted aircraft with a range of varying applications. Though early adoption of UAVs focused on military applications, surveillance, photography, and agricultural applications are presently on the rise. This work aims to ascertain how UAVs may be employed to elicit deceased transportation times, increased power efficiency, and improved safety. Resulting in optimized end point delivery. A combination of tools and techniques, involving a mathematical model, UAV simulations, redundant control systems, and custom designed electrical and mechanical components were used towards reaching the goal of a 10-kilogram maximum payload delivered 10 miles under 30 minutes. Two …