Dr. Randy M. Villahermosa Profile

Dr. Randy M. Villahermosa

Sr. Member of the Technical Staff at Aerospace Corp

SPIE Involvement:

Author

Publications (8)

Proceedings Article | 4 December 2012 Paper

Contamination resistant coatings for enhanced laser damage thresholds

Bruce Weiller, Jesse Fowler, Randy Villahermosa

Proceedings Volume 8530, 85302A (2012) https://doi.org/10.1117/12.2011179

KEYWORDS: Contamination, Laser damage threshold, Silica, Optical coatings, Laser induced damage, Laser optics, Bioalcohols, Pulsed laser operation, Adsorption, Silicon

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Proceedings Article | 2 December 2010 Paper

Inhibition of contamination laser induced damage to optical substrates

Bruce Weiller, Jesse Fowler, Randy Villahermosa

Proceedings Volume 7842, 784229 (2010) https://doi.org/10.1117/12.867025

KEYWORDS: Laser induced damage, Contamination, Laser damage threshold, Silica, Nitrogen, Laser scattering, Oxygen, Bioalcohols, Pulsed laser operation, Laser optics

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Proceedings Article | 6 May 2009 Paper

Calibration of on-orbit IR sensors by off-board illumination of neighboring satellites

Munson Kwok, Lorraine Ryan, Randy Villahermosa, Joseph Cox

Proceedings Volume 7330, 73300B (2009) https://doi.org/10.1117/12.821408

KEYWORDS: Calibration, Sensors, Satellites, Infrared sensors, Infrared radiation, Space operations, Long wavelength infrared, Space telescopes, Sensor calibration, Telescopes

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Proceedings Article | 2 September 2008 Paper

Chemical analysis of silicone outgassing

Randy Villahermosa, Alexis Ostrowski

Proceedings Volume 7069, 706906 (2008) https://doi.org/10.1117/12.802311

KEYWORDS: Silicon, Chemical analysis, Polymers, Analog electronics, Contamination, Satellites, Spectroscopy, Absorption, Polymerization, Satellite communications

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Proceedings Article | 2 September 2008 Paper

Modified polymers for contamination sensing and prevention of optical and space systems

Sara Halper, Randy Villahermosa

Proceedings Volume 7069, 70690C (2008) https://doi.org/10.1117/12.795641

KEYWORDS: Polymers, Contamination, Humidity, Absorption, Astronomical imaging, Packaging, Cobalt, Molecules, Nitrogen, Sensing systems

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Proceedings Article | 2 September 2008 Paper

Managing contamination-enhanced Laser Induced Damage (CLID)

Randy Villahermosa, Bruce Weiller, Shabnam Virji, David Taylor

Proceedings Volume 7069, 706908 (2008) https://doi.org/10.1117/12.802313

KEYWORDS: Particles, Contamination, Laser induced damage, Molecules, Molecular lasers, Laser development, Contamination control, Optical coatings, Nitrogen, Standards development

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Proceedings Article | 15 October 2004 Paper

Characterization of outgassed contaminants from polymeric spacecraft materials

Randy Villahermosa, Paul Joseph

Proceedings Volume 5526, (2004) https://doi.org/10.1117/12.558596

KEYWORDS: Silicon, Polymers, Infrared spectroscopy, Contamination, Space operations, Infrared radiation, Commercial off the shelf technology, Manufacturing, Absorbance, Absorption spectroscopy

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