Expert Details

Expert in Optical and Photonic Design and Engineering

Expert ID: 723164 Canada

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He has extensive experience designing optical systems for astigmatic coherent laser beams. He is familiar with techniques for laboratory measurements of beam properties and can use real beam profiles as inputs to beam propagation analysis and the design of corrective elements.

These techniques are invaluable in the design and debugging of microoptic elements where surface figure cannot be controlled in the same way as for conventional optics.

He has a strong background in near-UV and visible fluorescence spectroscopy and photophysics of molecular systems in both condensed and gas phases. He is familiar with vibrational structure, fluorescence lifetime, the polarization effects of viscous solutions, single photon counting methods, deconvolving interference between overlapping spectra, environmental effects of quantum yields, and non-radiative energy transfer phenomena.

He has conducted numerous spectral and time resolved experiments on biological systems, isolated gas-phase molecules, and on molecular clusters.

He has experience with a wide variety of laser systems dating back 25 years. He has first-hand experience with ion, dye, excimer, copper vapour, CO2, semiconductor, and solid state lasers; as well as optical paramateric oscillators and amplifiers. He has designed and built solid state and dye lasers, laser amplifiers, fiber amplifiers, mode lockers, cavity dumpers, and Q-switched systems.

He has applied these varied laser systems to time and frequency resolved spectroscopy (often simultaneously), holography, metrology, and telecommunications.

He has a firm background in molecular spectroscopy and extensive application in the fields of biological and large molecule absorption and fluorescence. He has experience in handling situations with interfering spectra and has devised means of deconvolving overlapping contributions from similar species.

He also experience in elucidating and compensating for complicating factors such as photochemical reactivity, non radiative energy transfer, and sample turbidity.

Expert has designed and built spectroscopic instrumentation for time and frequency resolved gas phase emission measurements, one and two-laser photoionization spectroscopy, as well as condensed phase absorption and emission measurements.

Applications of these systems include laser excited biological fluorescence, large and medium molecule laser excited emission, time (and mass) resolved photoionization, as well as biomedical absorption and emission diagnostic instruments.

In many cases special sample handling arrangements were necessary, from liquid flow cells to gas-mixing systems.


An optical alignment system was required by a manufacturer of laser rangefinding equipment. He developed and built a simple to operate system capable of handling all three on the manufacturer's product lines. After on site training and support their assembly and service times have been cut by more than a factor of 10.An automotive development lab required expertise in installation and configuration of a holographic system for vibrational analysis of prototype diesel engines. He provided installation and training support to successfully implement their desired system.A manufacturer of intracavity frequency doubled high power lasers was having problems with long-term stability. He was able to troubleshoot their design and propose a successful solution.An OEM manufacturer required assistance in designing optics for a laser-based projection system. He designed the beam shaping optics and set up an alignment system for use during assembly.

Education

Year Degree Subject Institution
Year: 1985 Degree: Ph. D. Subject: Chemistry Institution: University of Saskatchewan
Year: 1980 Degree: B.Sc. Subject: Chemistry Institution: University of Saskatchewan

Work History

Years Employer Title Department Responsibilities
Years: 2005 to Present Employer: Undisclosed Title: Founding Partner Department: Responsibilities: Independent Consulting
Years: 2001 to 2005 Employer: Photonami, Inc. Title: Senior Development Scientist Department: Responsibilities: lead C-band amplifier development
opto-mechanical design of telecom laser package
Years: 1997 to 2000 Employer: Photonics Research Ontario Title: Senior Scientist Department: Responsibilities: Industrial Consulting
Facilities Management
Years: 1987 to 1996 Employer: University of Toronto Title: Research Associate Department: Dept. of Chemistry Responsibilities: Manage academic research laboratory.
Develop and participate in research programs.
Supervise Graduate students
Years: 1985 to 1986 Employer: University of Toronto Title: NSERC Post Doctoral Fellow Department: Dept. of Chemistry Responsibilities: Develop and participate in research programs.

International Experience

Years Country / Region Summary
Years: 2005 to Present Country / Region: United States Summary: Ongoing design support and project management services for a New England OEM manufacturer.

Career Accomplishments

Associations / Societies
OSA
Publications and Patents Summary
He has 18 publications and 2 patents

Additional Experience

Expert Witness Experience
A legal defense team required technical advice on a case involving alleged misuse of military technology. He provided Expert Witness support to show that all aspects of the technology in question were in the public domain, and the case was successfully resolved for the defendant.
Vendor Selection
He routinely sources and manages suppliers in support of design and manufacture. In addition to extensive knowledge of "commodity" supplies, he has a close relationship with a number of specialist suppliers.
Other Relevant Experience
Project management and design work coordinating international engineering teams via teleconference.

Fields of Expertise

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