Dr. William A. Challener Profile

Dr. William A. Challener

Retired

SPIE Involvement:

Author | Instructor

Proceedings Article | 22 February 2018 Presentation + Paper

Hollow-core fiber sensing technique for pipeline leak detection

W. Challener, Matthias Kasten, Jason Karp, Niloy Choudhury

Proceedings Volume 10539, 105390P (2018) https://doi.org/10.1117/12.2286459

KEYWORDS: Sensors, Methane, Sensor technology, Optical fibers, Sensing systems, Spectroscopy

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Proceedings Article | 12 May 2016 Paper

Fugitive methane leak detection using mid-infrared hollow-core photonic crystal fiber containing ultrafast laser drilled side-holes

Jason Karp, William Challener, Matthias Kasten, Niloy Choudhury, Sabarni Palit, Gary Pickrell, Daniel Homa, Adam Floyd, Yujie Cheng, Fei Yu, Jonathan Knight

Proceedings Volume 9852, 985210 (2016) https://doi.org/10.1117/12.2229084

KEYWORDS: Methane, Mid-IR, Laser drilling, Photonic crystal fibers, Ultrafast lasers, Diffusion, Fiber lasers, Absorption, Sensors, Pulsed laser operation

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Proceedings Article | 13 March 2013 Paper

MOEMS pressure sensors for geothermal well monitoring

William Challener, Sabarni Palit, Roger Jones, Li Airey, Russell Craddock, Aaron Knobloch

Proceedings Volume 8616, 861603 (2013) https://doi.org/10.1117/12.2013141

KEYWORDS: Sensors, Microelectromechanical systems, Resonators, Silicon, Neodymium, Microopto electromechanical systems, Temperature metrology, Calibration, Tolerancing, Modulation

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Proceedings Article | 11 July 2007 Paper

Heat assisted magnetic recording with a fully integrated recording head

Michael Seigler, William Challener, Edward Gage, Nils Gokemeijer, Bin Lu, Kalman Pelhos, Chubing Peng, Robert Rottmayer, Xiaomin Yang, Hua Zhou, Xiaobin Zhu, Tim Rausch

Proceedings Volume 6620, 66200P (2007) https://doi.org/10.1117/12.738903

KEYWORDS: Magnetism, Head, Near field scanning optical microscopy, Anisotropy, Integrated optics, Near field optics, Waveguides, Cladding, Scanning electron microscopy, Iron

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Proceedings Article | 9 September 2004 Paper

Spin stand characterization of dielectric optical waveguides fabricated on AlTiC sliders for heat-assisted magnetic recording

Tim Rausch, Christophe Mihalcea, Kelman Pelhos, Chubing Peng, Edward Gage, Keith Mountfield, Michael Seigler, William Challener

Proceedings Volume 5380, (2004) https://doi.org/10.1117/12.556004

KEYWORDS: Waveguides, Head, Magnetism, Dielectrics, Polarization, Near field, Transducers, Sensors, Near field optics, Anisotropy

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Proceedings Article | 9 September 2004 Paper

Finite difference frequency domain scattered field formulation for near-field optical data storage

Amit Itagi, William Challener, Ibrahim Sendur, Tuviah Schlesinger

Proceedings Volume 5380, (2004) https://doi.org/10.1117/12.556377

KEYWORDS: Finite-difference time-domain method, Waveguides, Near field, Surface plasmons, Optical storage, Metals, Near field optics, Aluminum, Instrument modeling, Magnetism

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Proceedings Article | 30 July 1997 Paper

Figures of merit for recordable optical media

William Challener

Proceedings Volume 3109, (1997) https://doi.org/10.1117/12.280693

KEYWORDS: Molybdenum, Reflectivity, Dielectrics, Refraction, Reflectors, Lead, Bismuth, Magneto-optics, Refractive index, Crystals

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Showing 5 of 7 publications

Conference Committee Involvement (1)

Optical Data Storage

14 May 2000 | Whistler, BC, Canada

Course Instructor

SC624: Surface Plasmons: Theory and Applications

This course will introduce the theory of surface plasmons (SPs) from the standpoint of classical electrodynamics. The properties of SPs will be discussed. The variety of configurations and materials which support SPs will be explored. Techniques for excitation of SPs will be described. This course will also cover current and potential applications in which SPs play an integral part.

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