Rensselaer Polytechnic Institute Faculty & Research Staff
Interests & Expertise
Integration of photonic devices with power switching and mixed signal devices to realize optoelectronic ICs in GaN. Also, he is developing novel device concepts, processing and circuit models for high-voltage Si, GaAs, wide bandgap (particularly SiC and GaN) semiconductor power devices and/or ICs.
Integration of photonic devices with power switching and mixed signal devices to realize optoelectronic ICs in GaN. Also, he is developing novel device concepts, processing and circuit models for high-voltage Si, GaAs, wide bandgap (particularly SiC and GaN) semiconductor power devices and/or ICs.
Interests & Expertise
Wavelength conversion compounds (Phosphors and Quantum Dots) in powder, thin film and colloidal solutions. Nanoparticles, thin film and bulk crystals of optically clear tunable refractive index material.
Design, Fabrication and Characterization of full spectrum phosphor LEDs, III-V semiconductor photodetectors, nano-particle based ultra-sensitive photosensors.
Optical link design and LED modulation schemes for free space visible light communication systems.
Integrated lighting and display systems design such as virtual windows.
Wavelength conversion compounds (Phosphors and Quantum Dots) in powder, thin film and colloidal solutions. Nanoparticles, thin film and bulk crystals of optically clear tunable refractive index material.
Design, Fabrication and Characterization of full spectrum phosphor LEDs, III-V semiconductor photodetectors, nano-particle based ultra-sensitive photosensors.
Optical link design and LED modulation schemes for free space visible light communication systems.
Integrated lighting and display systems design such as virtual windows.
Interests & Expertise
High speed integrated circuits for wireless and wireline optical communications, advanced light sensors, high speed optical communication circuits. Microwave and millimeter wave integrated circuits and systems, power amplifier linearization, applications of microwaves in biology and medicine, energy harvesting circuits
High speed integrated circuits for wireless and wireline optical communications, advanced light sensors, high speed optical communication circuits. Microwave and millimeter wave integrated circuits and systems, power amplifier linearization, applications of microwaves in biology and medicine, energy harvesting circuits
Interests & Expertise
Systems and control theory. His research interests are in the area of hybrid systems and systems biology. At the Smart Lighting ERC, Dr. Julius has been collaborating with Dr. John Wen in the use of smart lighting in circadian rhythm control.
Systems and control theory. His research interests are in the area of hybrid systems and systems biology. At the Smart Lighting ERC, Dr. Julius has been collaborating with Dr. John Wen in the use of smart lighting in circadian rhythm control.
Interests & Expertise
LED chip design, thermal management, packaging technoloyg, photonics crystal optics, SS luminaire design.
LED chip design, thermal management, packaging technoloyg, photonics crystal optics, SS luminaire design.
Interests & Expertise
Micro-nano-electronics technology from theory and design to materials, devices, processing, and system integration; particularly in 3D hyper-integration technology, micro-nano-bio interfaces for future chips, LEDs, sensors and micro-electrical-mechanical systems (MEMS) in combination(3D integration) with CMOS based technologies for smart lighting systems.
Micro-nano-electronics technology from theory and design to materials, devices, processing, and system integration; particularly in 3D hyper-integration technology, micro-nano-bio interfaces for future chips, LEDs, sensors and micro-electrical-mechanical systems (MEMS) in combination(3D integration) with CMOS based technologies for smart lighting systems.
Interests & Expertise
Broad area of controls and dynamic systems, with application to smart lighting systems. Research thrusts include design of estimation and feedback control algorithms for delivering desired dynamically changing illumination fields. In particular, we are targeting daylight compensation techniques using learning-based algorithms.
Broad area of controls and dynamic systems, with application to smart lighting systems. Research thrusts include design of estimation and feedback control algorithms for delivering desired dynamically changing illumination fields. In particular, we are targeting daylight compensation techniques using learning-based algorithms.
Interests & Expertise
Computer vision, image processing, camera networks, video analytics and surveillance, 3D/range imagery, radiation therapy treatment planning, visual effects, applications in medicine, biology, robotics, and art.
Computer vision, image processing, camera networks, video analytics and surveillance, 3D/range imagery, radiation therapy treatment planning, visual effects, applications in medicine, biology, robotics, and art.
Interests & Expertise
Ultraviolet and blue LEDs for reagentless detection and identification of biohazards with potential to both detect and destroy biological treats to a healthy environment. Lifetime decay, fluorescence intensity, and spectral analysis are investigated with controlled or pulsed, narrow, multi-wavelength UV LEDs for active bio-sensing within a smart space.
Ultraviolet and blue LEDs for reagentless detection and identification of biohazards with potential to both detect and destroy biological treats to a healthy environment. Lifetime decay, fluorescence intensity, and spectral analysis are investigated with controlled or pulsed, narrow, multi-wavelength UV LEDs for active bio-sensing within a smart space.
Interests & Expertise
Color science, artificial lighting, smart lighting systems, lighting control algorithms. As an engineer I’m focus on LED lighting control, starting from the LED drivers, PCB design, lighting simulation till the implementation of the user interface.
Color science, artificial lighting, smart lighting systems, lighting control algorithms. As an engineer I’m focus on LED lighting control, starting from the LED drivers, PCB design, lighting simulation till the implementation of the user interface.
Interests & Expertise
Large area nanofabrication, soft matter and optics with a focus on super-resolution optics such as STED microscopy. Within the LESA ERC the focus is on controlling refractive index in 3D with nanoscale resolution over cm areas for applications in secondary optics.
Large area nanofabrication, soft matter and optics with a focus on super-resolution optics such as STED microscopy. Within the LESA ERC the focus is on controlling refractive index in 3D with nanoscale resolution over cm areas for applications in secondary optics.
Interests & Expertise
John Wen’s research interest lies in the modeling, optimization and control of dynamical systems, including: Opto-mechatronics – integrated design of static and active optical elements, motion control, image processing to achieve new functionalities; Distributed optimization for networked systems subject to constraints; Regulation of lighting for biological systems, e.g., in circadian rhythm.
John Wen’s research interest lies in the modeling, optimization and control of dynamical systems, including: Opto-mechatronics – integrated design of static and active optical elements, motion control, image processing to achieve new functionalities; Distributed optimization for networked systems subject to constraints; Regulation of lighting for biological systems, e.g., in circadian rhythm.
Interests & Expertise
Christian Wetzel and his team are interested in all aspects of photonic-electric energy conversion, in particular high flux light emitting diodes and emerging 3rd generation solar cells. Current materials of choice include wide bandgap group-III nitrides in epitaxy, characterization, and devices.
Christian Wetzel and his team are interested in all aspects of photonic-electric energy conversion, in particular high flux light emitting diodes and emerging 3rd generation solar cells. Current materials of choice include wide bandgap group-III nitrides in epitaxy, characterization, and devices.