Dr. Brij Khorana Profile

Dr. Brij Khorana

Ret.Prof., RHIT; Chief Sc. Advisor, Clemson Univ.

SPIE Involvement:

Author

Proceedings Article | 26 September 1997 Paper

Near-field modeling versus optical ray modeling of extended halogen light source in computer design of a reflector

Peter Shmelev, Brij Khorana

Proceedings Volume 3140, (1997) https://doi.org/10.1117/12.279225

KEYWORDS: Geometrical optics, Near field optics, Near field, Light sources, Reflectors, Ray tracing, Halogens, Reflector design, Lamps, Charge-coupled devices

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Proceedings Article | 23 September 1996 Paper

Lasers in diagnostic dentistry

Brij Khorana

Proceedings Volume 2887, (1996) https://doi.org/10.1117/12.251967

KEYWORDS: Teeth, Laser dentistry, Diagnostics, Speckle pattern, Dentistry, Mathematical modeling, Speckle, Laser applications, Laser beam diagnostics, Multiple scattering

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SPIE Journal Paper | 1 May 1995

Temporal and spatial properties of the time-varying speckles of botanical specimens

ZiJie Xu, Charles Joenathan, Brij Khorana

OE, Vol. 34, Issue 05, (May 1995) https://doi.org/10.1117/12.10.1117/12.199878

KEYWORDS: Speckle pattern, Speckle, Metals, Light scattering, Skin, Particles, Polarization, Superposition, Cameras, Sensors

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Proceedings Article | 2 September 1992 Paper

Electronic speckle pattern interferometric vibration fringes

Charles Joenathan, Brij Khorana

Proceedings Volume 1779, (1992) https://doi.org/10.1117/12.140959

KEYWORDS: Speckle pattern, Speckle, Fringe analysis, Phase shifts, Cameras, Superposition, Beam splitters, Interferometry, Signal to noise ratio, Photography

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Proceedings Article | 2 September 1992 Paper

Development of a compact phase-measuring ESPI system using single-mode fiber and diode laser

Song Peng, Charles Joenathan, Brij Khorana

Proceedings Volume 1779, (1992) https://doi.org/10.1117/12.140957

KEYWORDS: Semiconductor lasers, Optical isolators, Single mode fibers, Speckle pattern, Fringe analysis, Ferroelectric materials, Lenses, Interferometry, Laser optics, Fiber optics

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Proceedings Article | 12 May 1992 Paper

Center for Applied Optics Studies: an investment in Indiana's future

Delbert Schuh, Brij Khorana

Proceedings Volume 1617, (1992) https://doi.org/10.1117/12.58915

KEYWORDS: Optics manufacturing, Manufacturing, Basic research, Physics, Fiber optics, Applied research, Technologies and applications, Optical components, Optical communications

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Proceedings Article | 1 March 1992 Open Access

Preparing optics graduates for their first job in industry

Brij Khorana

Proceedings Volume 1603, (1992) https://doi.org/10.1117/12.57846

KEYWORDS: Optical fibers, Optical engineering, Prototyping, Fiber optics, Connectors, Nondestructive evaluation, Speckle pattern, Interferometry, Image processing, Sensors

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An approach that has proved effective for preparing optics graduates for their first job in the industry, is presented. A growing number of universities and colleges are offering coursework in optics and optics related fields at the graduate as well as undergraduate level. Some of these are part of degree programs in optics/optics related field, some are a part of a concentration or area minor program in optics and in other cases these courses are just stand alone courses. Some of these courses also have a lab component. Some of the optics graduates go on to pursue doctorate degree and some seek employment in the industry upon completion of their B.S. or M.S. degree. Optical engineering/science is being recognized more and more as a discipline in its own right and the demand in the industry for such graduates has grown and is expected to continue to grow. The preparation of the optic graduates, based only on coursework, for a job in the industry is considered adequate but can be enhanced substantially by including some experience which is as close as possible to the work experience at a typical first job in the industry.Some of the degree programs achieve this through a "Co-Op program" in which a student spends one/two semesters at the college/university taking courses, followed by a semester as an intern in the industry. Another approach is to provide to the students, while they are in school taking courses, an experience which is similar to what they will encounter at their first job in the industry. We have used this latter approach effectively for our M.S. (Applied Optics) students. Our Center for Applied Optics Studies works with businesses, industries, and government agencies in helping solve some of their problems. This usually involves developing a new or improved product or process, or doing a feasibility/evaluation study. The M.S. (Applied Optics) students are required to do a thesis and, whenever possible, we have required them to use one of these problems as the focus of their M.S. thesis project. The following list of Master's thesis of recent graduates provides an indication of the variety and type of problems: 1. "Prototype Right Angle Fiber Optic Connector and Bend Loss of Optical Fibers" 2. "Optical Nondestructive Testing of Meltalic Honeycomb Bonding" 3. "Measurements of Static Displacements Using Digital Speckle Pattern Interferometry and Image Processing" 4. "Studies of Wavelength-Dependent Loss Effects in Optical Fiber Components and Sensors" 5. "Lens for Microlithography" 6. "Non-invasive Study of Human Cardiac Cycle Using Holographic Interferometry" 7. "Veiling Glare in the F4111 Image Intensifier" 8. "Characterization of a Heat-Treated Photoretractive Crystal, Barium Titante" 9. "Phase-Conjugate Shear-Interferometer" 10. "Forward Light Scattering from Optical Fibers" Most of these thesis projects were driven by industrial interaction and involved a close liaison with an engineer/scientist from the organization that had a vested interest in the solution of the problem. Examples of other industrially driven projects where M.S. (Applied Optics) students as well as undergraduate students gained useful experience, though not reflected in the list of thesis, are: 1. Development of a New Brightness Meter for the Paper and Pulp Industry; 2. Feasibility Study and Subseguent Development of a Vision Inspection System. The progress on many of these projects is measured by the satisfactory completion of well defined milestones on a pre-set project schedule. By participating in these type of industrially driven projects, the students get exposed to some of the concepts of project management as well.

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SPIE Journal Paper | 1 February 1992

Phase-measuring fiber optic electronic speckle pattern interferometer: phase step calibration and phase drift minimization

Charles Joenathan, Brij Khorana

OE, Vol. 31, Issue 02, (February 1992) https://doi.org/10.1117/12.10.1117/12.56066

KEYWORDS: Ferroelectric materials, Calibration, Phase shifts, Fiber optics, Sensors, Speckle pattern, Interferometry, Temperature metrology, Fiber optics sensors, Interferometers

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Proceedings Article | 1 December 1991 Paper

Phase-measuring fiber optic ESPI system: phase-step calibration and error sources

Charles Joenathan, Brij Khorana

Proceedings Volume 1554, (1991) https://doi.org/10.1117/12.57453

KEYWORDS: Ferroelectric materials, Phase shifts, Temperature metrology, Calibration, Fiber optics, Sensors, Speckle pattern, Holographic interferometry, Cameras, Phase measurement

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Proceedings Article | 1 March 1991 Paper

Phase measuring fiber optic electronic speckle pattern interferometer

Charles Joenathan, Brij Khorana

Proceedings Volume 1396, (1991) https://doi.org/10.1117/12.47754

KEYWORDS: Ferroelectric materials, Phase shifts, Speckle pattern, Fiber optics, Moire patterns, Fiber optics tests, Interferometers, Speckle, Optical engineering, CCD cameras

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Proceedings Article | 1 March 1991 Paper

Machine vision system for ore sizing

Christopher Eichelberger, Steven Blair, Brij Khorana

Proceedings Volume 1396, (1991) https://doi.org/10.1117/12.25872

KEYWORDS: Optical engineering, Machine vision, Cameras, Line scan cameras, Light sources and illumination, Software, Systems modeling, Zoom lenses, Image acquisition, Visual process modeling

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Proceedings Article | 1 March 1991 Paper

Development of an interferometric fiber optic sensor using diode laser

Donald Brewer, Charles Joenathan, Yu Wang, Brij Khorana

Proceedings Volume 1396, (1991) https://doi.org/10.1117/12.47766

KEYWORDS: Fiber optics sensors, Sensors, Ferroelectric materials, Interferometry, Semiconductor lasers, Temperature metrology, Phase shifts, Fiber optics, Interferometers, Optical engineering

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Showing 5 of 12 publications

SPIE Conference Volume | 23 September 1996

Lasers in Medicine and Dentistry: Diagnostics and Treatment

SPIE Conference Volume | 27 April 1989

1988 Intl Conf on Education in Optics

Conference Committee Involvement (3)

Lasers in Medicine and Dentistry: Diagnostics and Treatment

4 November 1996 | Beijing, China

Education in Optics

28 September 1991 | Leningrad, Russian Federation

1988 Intl Conf on Education in Optics

15 August 1988 | San Diego, CA, United States

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