A liquid lens has advantages over a fixed lens in that it can its optical properties (e.g., focal length) can be adapted in real-time. Such lenses use the refractive properties of fluid for focusing and magnification of light. There is great potential in optofluidic lenses. Here, enhanced infrared annealing is achieved through total internal reflection of an optical beam. Additionally, work has focused on development of digital microfluidic platforms for polymerase chain reaction. This multiplexed system has been integrated with optical and terahertz spectroscopy techniques for investigations of full lab-on-a-chip systems. The Collier Research Group investigated such Digital Microfluidic devices and produced multiplexed systems whereby individual microdroplets are actuated with a trinary activation algorithms and sensed through integration of fibre-optic cables. ![]() These systems are Digital Microfluidic systems. However, a reconfigurable form of microfluidics has emerged whereby microdroplets are actuated on a two-dimensional planar structure using electric fields. Traditionally, these systems are continuous-flow-based and make use of micropumps, microvalves, and other components. These microsystems allow high throughput analyses of biofluids for diagnostics and scientific pursuits. Lab-on-a-chip systems have revolutionized the biomedical device industry and Biomedical Engineering. Such advancements come about through strategic implementation of Fourier analyses. The Collier Research Group has made advancements in snapshot hyperspectral imaging, whereby the full image can be stored instantly. The results were very favourable with the GaP photoconductive terahertz emitter having high mobility for terahertz generation with low mobility for subsequent residual current consumption for enhanced performance.Ī related spectral imaging technology is hyperspectral imaging, whereby wavelength information (over the visible spectrum) for a line of pixels is stored on a two-dimensional sensor. This work looked investigated the transient mobility effects in a GaP material. ![]() Collier’s research has produced novel photoconductive terahertz emitters whereby Joule heating is reduced. However, current emission techniques have challenges related to Joule heating.ĭr. Given these motivations, there is significant interest in the generation and detection of terahertz radiation. Additionally, terahertz radiation is non-ionizing and safer than other frequencies (e.g., x-rays). Terahertz radiation is sensitive to the vibrational and rotational modes of biomolecules, making it ideal for identifying chemical signatures. Over recent years, terahertz wavelengths (over 0.1-10 THz frequencies) have contributed strongly to spectroscopy and imaging in Biomedical Engineering. Terahertz Spectroscopy and Spectral Imaging. PhD (Electrical Engineering), The University of British Columbia Okanagan (2016)īASc (Electrical Engineering), The University of British Columbia Okanagan (2011) Research Interests & Projects The Collier Research Group is supported through numerous funding sources including NSERC, Ontario Centres of Excellence (OCE), and Canada Foundation for Innovation (CFI), and the Barrett Family Foundation. Collier’s work focuses on innovative microfluidic and spectroscopy technologies and has been published in notable journals published by the Nature Research publishing group, the Optical Society of America (OSA), the Institute of Electrical and Electronics Engineers (IEEE), and Elsevier. ![]() Collier began as an Assistant Professor at the School of Engineering at the University of British Columbia’s Okanagan campus.ĭr. Collier’s experimental work was carried out in the Applied Optics and Microsystems Laboratory (AOML) which he established. Collier was an Assistant Professor in the School of Engineering at the University of Guelph, where he was the Principal Investigator of the Collier Research Group. He is the recipient of many awards including the Killam Doctoral Scholarship, the SPIE Laser Technology, Engineering, and Applications Scholarship, the Finch Family Graduate Award, the IODE War Memorial Scholarship, and Natural Sciences and Engineering Research Council of Canada (NSERC) awards at the masters, doctoral, and postdoctoral levels.įrom 2016 to 2021, Dr. Christopher Collier received the BASc and PhD degrees in electrical engineering from the University of British Columbia Okanagan in 20, respectively. Bio-photonics and bio-optics Digital microfluidics Hyperspectral imaging Lab-on-a-chip systems Microfludics for agriculture and food Optofluidic elements Terahertz spectroscopy Courses & TeachingĮNGR 572 Fibre Optics and Photonics Biographyĭr.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |