Browsing University of Waterloo by Supervisor "Ban, Dayan"
Now showing items 1-16 of 16
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Advanced Nanoelectromechanical Systems for Next Generation Energy Harvesting
(University of Waterloo, 2018-11-15)The ever-increasing desire to produce portable, mobile and self-powered wireless micro-/nano systems (MNSs) with extended lifetimes has lead to the significant advancement in the area of mechanical energy harvesting over ... -
Characterization and Theoretical Study of Mid-infrared Quantum Cascade Lasers
(University of Waterloo, 2019-05-07)The technology and performance of quantum cascade lasers has rapidly developed since it was firstly unveiled in 1994. This type of laser has a feasible design, micro meter size and potential for emission of long wavelength ... -
Cyclic Style Generative Adversarial Network for Near Infrared and Visible Light Face Recognition
(University of Waterloo, 2023-01-10)Face recognition in the visible light (VIS) spectrum has been widely utilized in many practical applications. With the development of the deep learning method, the recognition accuracy and speed have already reached an ... -
Development of Terahertz Quantum Well Photodetector at 3 THz
(University of Waterloo, 2019-04-05)This thesis reports a new terahertz (𝑓=3.22 THz) quantum well photodetector (THz QWP) as well as comprehensive numerical models simulating device active region and different grating couplers including traditional diffraction ... -
Efficiency Improvement for III-V Nitride Micro Light-Emitting Diodes
(University of Waterloo, 2019-09-10)As a solid-state lighting source with high luminance and long life-time, the gallium nitride/ indium gallium nitride (GaN/InGaN) light-emitting diode (LED) is considered as a promising technology for many applications, ... -
High-Performance Piezoelectric Nanogenerators Based on Hybrid Perovskite Nanomaterials for Energy-Harvesting
(University of Waterloo, 2023-03-21)With the increasing drive to create self-powering nano/micro-electromechanical systems (NEMS/MEMS), maximizing the output performance of piezoelectric nanogenerators (PENGs) is essential. Organic-inorganic halide perovskites ... -
III-V semiconductor nanowire array avalanche photodiodes
(University of Waterloo, 2023-01-03)Detecting single photons with high efficiency and timing resolution opens up new possibilities for various technologies such as light detection and ranging (LIDAR), long-distance secure communication, singlet oxygen detection ... -
InAs/AlSb Based Mid-Infrared QCL Growth and XRD Simulation
(University of Waterloo, 2016-08-24)In the past two decades, mid-infrared (MIR) quantum cascade laser (QCL) research has been rapidly developed and has resulted in an enabling platform for the remote sensing and metrology. QCL is designed by spatial confinement ... -
Investigation on performance enhancement of micro-sized IR photodetectors
(University of Waterloo, 2021-09-16)As an Infrared detector with high responsivity, high transmission speed, and low dark current, InP/InGaAs p-i-n photodetectors (PD) have been used as a promising technology for many applications, including optical communication ... -
Organic-Inorganic Nanomaterial Based Highly Efficient Flexible Nanogenerator for Self-Powered Wireless Electronics
(University of Waterloo, 2023-05-01)As the world progresses towards artificial intelligence and the Internet of Things (IoT), self‐powered sensor systems are increasingly vital for sensing and detection. Nanogenerators, a new technology in energy research, ... -
Semiconductor Nanowire Based Piezoelectric Energy Harvesters: Modeling, Fabrication, and Characterization
(University of Waterloo, 2015-12-22)Semiconductor nanowire (NW) arrays’ unique advantages over bulk forms, including enhanced surface area, high mechanical flexibility, high sensitivity to small forces, better charge collection, and enhanced light absorption ... -
Spatial and Channel Attention-based 3D Object Classification Research for 3D Point Clouds
(University of Waterloo, 2023-01-16)Deep learning has been widely used in Two Dimensional (2D) computer vision and has led to the realization that machine learning techniques have become one of the key research directions for future scientific research. In ... -
Thermal Dynamic Imaging and Thermal Management for Quantum Cascade Lasers
(University of Waterloo, 2022-10-31)Recent advances in quantum cascade lasers (QCLs) development are pushing lasing performance towards higher output power, higher operating temperature, and higher wall-plug efficiency (WPE). However, joule heating and ... -
Toward High Performance Broad-band Frequency Comb Operation of Terahertz Quantum Cascade Lasers
(University of Waterloo, 2017-05-16)Recent advances in Terahertz Quantum Cascade Laser (THz QCL) development are pushing this technology ever closer to practical application, particularly within the spectroscopic field. For this reason, optimizing the operation ... -
Transport and Decoherence Phenomena in Quantum Dots
(University of Waterloo, 2020-05-11)The problem of a few electronic level coupling to an environmental heat bath, such as in quantum dots (QDs), is well-known in modern quantum physics. These systems have been widely studied as they can dictate the dephasing ... -
Video-Based Object Detection in Security Monitoring System
(University of Waterloo, 2022-09-28)Object detection technology has been widely used in many real world applications. With the development of the deep learning method, the accuracy and speed of object de tection method have been improved significantly, ...