Dr. Chandra P. Khattak Profile

Dr. Chandra P. Khattak

Vice President Technology at ARC Energy

SPIE Involvement:

Author

Publications (16)

Proceedings Article | 22 May 2015 Paper

20-inch diameter CHES® sapphire boules

Chandra Khattak, Joshua Filgate, Raj Shetty, C. Richard Schwerdtfeger, Saurabh Ullal

Proceedings Volume 9453, 945305 (2015) https://doi.org/10.1117/12.2180647

KEYWORDS: Sapphire, Light emitting diodes, Control systems, Crystals, Consumer electronics, Cell phones, Semiconducting wafers, Mobile devices, Solids

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Proceedings Article | 26 September 2003 Paper

Growth of 15-inch diameter sapphire boules

Chandra Khattak, Paul Guggenheim, Frederick Schmid

Proceedings Volume 5078, (2003) https://doi.org/10.1117/12.487633

KEYWORDS: Sapphire, Crystals, LIGO, Surface finishing, Polishing, Interfaces, Reconnaissance systems, Sensors, Titanium, Absorption

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Proceedings Article | 7 September 2001 Paper

Development of large-aperture monolithic sapphire optical windows

Joel Askinazi, Richard Wientzen, Chandra Khattak

Proceedings Volume 4375, (2001) https://doi.org/10.1117/12.439163

KEYWORDS: Sapphire, Wavefronts, Polishing, Crystals, Surface finishing, Refraction, Crystal optics, Metrology, Manufacturing

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Proceedings Article | 25 October 2000 Paper

Use of Grafoil in mechanical testing of sapphire at elevated temperatures

Svetlana Ivanova, Frederick Schmid, Chandra Khattak, Daniel Harris

Proceedings Volume 4102, (2000) https://doi.org/10.1117/12.405296

KEYWORDS: Sapphire, Crystals, Temperature metrology, Ultraviolet radiation, Infrared radiation, UV optics, Warfare, Visible radiation, Thermography, Resistance

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Proceedings Article | 25 October 2000 Paper

Increase of high-temperature strength of sapphire by polishing, heat treatments, and doping

Frederick Schmid, Chandra Khattak, Keil Schmid, Svetlana Ivanova, Daniel Harris

Proceedings Volume 4102, (2000) https://doi.org/10.1117/12.405303

KEYWORDS: Polishing, Heat treatments, Sapphire, Surface finishing, Doping, Abrasives, Magnesium, Oxygen, Diamond, Argon

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Proceedings Article | 26 July 1999 Paper

Correlation of crystallographic orientation with processing of sapphire optics

Maynard Smith, Keil Schmid, Frederick Schmid, Chandra Khattak, John Lambropoulos

Proceedings Volume 3705, (1999) https://doi.org/10.1117/12.354611

KEYWORDS: Sapphire, Polishing, Crystals, Domes, Birefringence, Diamond, Precision optics, Interferometers, Optics manufacturing, Infrared technology

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Proceedings Article | 26 July 1999 Paper

Current status of very large sapphire crystal growth for optical applications

Frederick Schmid, Chandra Khattak, Henry Rogers, D. Mark Felt, Joel Askinazi, Richard Wientzen

Proceedings Volume 3705, (1999) https://doi.org/10.1117/12.354643

KEYWORDS: Sapphire, Crystals, Sensors, Crystal optics, Resistance, Semiconductor materials, Mid-IR, Sensor technology, Oxides, Far infrared

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Proceedings Article | 26 July 1999 Paper

High-temperature compression and ring-on-ring testing of sapphire

Frederick Schmid, Keil Schmid, Chandra Khattak, Daniel Harris

Proceedings Volume 3705, (1999) https://doi.org/10.1117/12.354631

KEYWORDS: Sapphire, Polishing, Surface finishing, Crystals, Resistance, Silicon, Heat treatments, Failure analysis, Warfare, UV optics

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Proceedings Article | 26 July 1999 Paper

Increasing the strength of sapphire by heat treatments

Frederick Schmid, Keil Schmid, Chandra Khattak, Peter Duggan, Daniel Harris

Proceedings Volume 3705, (1999) https://doi.org/10.1117/12.354639

KEYWORDS: Polishing, Heat treatments, Sapphire, Abrasives, Surface finishing, Oxygen, Hydrogen, Argon, Atmospheric modeling, Temperature metrology

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Proceedings Article | 23 September 1998 Paper

Growth of very large sapphire crystals for optical applications

Frederick Schmid, Henry Rogers, Chandra Khattak, D. Mark Felt

Proceedings Volume 3424, (1998) https://doi.org/10.1117/12.323762

KEYWORDS: Sapphire, Crystals, Solids, Interfaces, Crystal optics, Resistance, Zinc, Helium, Reconnaissance systems, Sensors

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Proceedings Article | 1 November 1997 Paper

Controlling stress in sapphire optics

Maynard Smith, Keil Schmid, Frederick Schmid, Chandra Khattak, John Lambropoulos

Proceedings Volume 3134, (1997) https://doi.org/10.1117/12.295134

KEYWORDS: Polishing, Diamond, Heat treatments, Sapphire, Surface finishing, Abrasives, Silica, Iron, Optics manufacturing, Glasses

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Proceedings Article | 28 July 1997 Paper

Current status of sapphire for optics

Frederick Schmid, Chandra Khattak, Maynard Smith, D. Mark Felt

Proceedings Volume 10289, 102890A (1997) https://doi.org/10.1117/12.279817

KEYWORDS: Sapphire, Crystals, Vacuum ultraviolet, Optical properties, Resistance, UV optics, Near infrared, Precision optics, Wavefronts

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Proceedings Article | 27 June 1997 Paper

Correlation of sapphire quality with uniformity and optical properties

Chandra Khattak, Frederick Schmid, Maynard Smith

Proceedings Volume 3060, (1997) https://doi.org/10.1117/12.277050

KEYWORDS: Sapphire, Distortion, Crystals, Refractive index, Solids, Light scattering, Scattering, Optical properties, Wavefront distortions, Interfaces

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