Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Keyword
-
- Pixel (4)
- FDTD simulation (3)
- Nanophotonics (3)
- Opto-VLSI processor (3)
- Surface plasmon polaritons (3)
-
- [RSTDPub] (3)
- [RstdPub] (3)
- Acoustic transducers (2)
- Adaptive optical splitter (2)
- Arrays (2)
- Bar codes (2)
- Beam splitter (2)
- CMOS integrated circuits (2)
- Cameras (2)
- Communication channels (2)
- Crosstalk (2)
- Decoding (2)
- Energy harvesting (2)
- Fibre optic sensors (2)
- Frequency response (2)
- Geometry (2)
- Image coding (2)
- Image color analysis (2)
- Laser beams (2)
- Lighting (2)
- Liquid crystal devices (2)
- Magnetic resonance imaging (2)
- Magnetic separation (2)
- Optical communication (2)
- Phase shift keying (2)
- Publication
- Publication Type
Articles 31 - 35 of 35
Full-Text Articles in Engineering
Spatial Performance Of Acousto-Ultrasonic Fiber Bragg Grating Sensor, Graham Wild, Steven Hinckley
Spatial Performance Of Acousto-Ultrasonic Fiber Bragg Grating Sensor, Graham Wild, Steven Hinckley
Research outputs pre 2011
In this letter, we present results for the spatial performance of a fiber Bragg grating (FBG) sensor to continuous-wave acousto-ultrasonic (AU) signals. The FBG AU sensor is an intensity sensor, using a transmit reflect detection system. The AU sensor was used to receive actively generated continuous-wave ultrasonic signals from a PZT transducer. We present results showing the received signal strength as a function of longitudinal, lateral, and angular separation in small aluminum panels. Measurements were taken for distances of less then 100 mm and at angles from 0 to 90 degrees between the sensor and the transducer. These results show …
Adaptive Optical Splitter Employing An Opto-Vlsi Processor And A 4-F Imaging System, Haithem Ab Mustafa, Feng Xiao, Kamal Alameh
Adaptive Optical Splitter Employing An Opto-Vlsi Processor And A 4-F Imaging System, Haithem Ab Mustafa, Feng Xiao, Kamal Alameh
Research outputs pre 2011
A novel adaptive optical splitter structure employing an Opto-VLSI processor and 4-f imaging system is proposed and experimentally demonstrated. By driving the Opto-VLSI processor with computer generated multicasting phase holograms, an input optical signal launched into an input optical fiber port can be split and coupled into many output optical fiber ports with arbitrary splitting ratios. A proof-of-principle 1 2 adaptive optical splitter structure driven by optimized multicasting phase holograms uploaded onto the Opto-VLSI processor is developed, demonstrating an arbitrary splitting ratio over a wavelength range exceeding 50 nm.
The Effect Of Lifting Straps On Peak Velocity, Force, And Power During Clean Pull, Naruhira Hori, Brendyn Appleby, Warren Andrews, Kazunori Nosaka
The Effect Of Lifting Straps On Peak Velocity, Force, And Power During Clean Pull, Naruhira Hori, Brendyn Appleby, Warren Andrews, Kazunori Nosaka
Research outputs pre 2011
The clean pull is a common exercise among athletes. Some athletes use lifting straps in this exercise, but efficacy of lifting straps has not been examined. The purpose of the present study was to examine the effects of lifting straps on velocity, force and power during the clean pull. Five male professional Rugby Union players performed two sets of two repetitions of the clean pull with a 140-kg barbell under two conditions: with and without the lifting straps, in a counterbalanced order. An optical encoder was attached to the barbell, and peak velocity of the barbell, and force / power …
Absorption Enhancement Of Msm Photodetector Structure With A Plasmonic Double Grating Structure, Chee Leong Tan, Volodymyr V. Lysak, Narottam Das, Ayman Karar, Kamal Alameh, Yong Lee
Absorption Enhancement Of Msm Photodetector Structure With A Plasmonic Double Grating Structure, Chee Leong Tan, Volodymyr V. Lysak, Narottam Das, Ayman Karar, Kamal Alameh, Yong Lee
Research outputs pre 2011
We present finite difference time domain simulation to analyze the optical absorption enhancement of metal-semiconductor-metal photo detectors employing double plasmonic grating structures. Simulation results show that the combination of a subwavelength aperture and double nano-structured metal grating results in up to 25 times enhancement in optical absorption, in comparison to MSM photodetector structures employing only a subwavelength aperture. This improvement of the absorption enhancement is due to the coupling out function of the bottom grating structure which distributes the light to both side of the subwavelength aperture.
Near Infrared Photovoltaic Micro-Cell For Optical Fibre Based Power Harvesting, Gary Allwood
Near Infrared Photovoltaic Micro-Cell For Optical Fibre Based Power Harvesting, Gary Allwood
Theses : Honours
A photonic power system using a silicon or germanium based device as a photonic power converter was proposed. The properties of each device were investigated to determine the optimum structure, design, configuration and efficiency for power conversion. These included, but were not limited to, device geometry, doping concentration and the wavelength of the incident beam. Relevant inferences were made from the results obtained and compared to previous work. Currently, research into photovoltaic power converters is focused on the efficiencies of complex heterostuctures made from gallium-arsenide compounds. Here, the properties of a silicon device were investigated in detail as the predicted …