Dr. Frank Bucholtz Profile

Dr. Frank Bucholtz

Senior Scientist at Jacobs Technology Inc.

SPIE Involvement:

Author

Publications (23)

SPIE Journal Paper | 3 December 2020

Matrix representations for classical and quantum beam splitters

Frank Bucholtz, Joseph Singley

OE, Vol. 59, Issue 12, 120801, (December 2020) https://doi.org/10.1117/12.10.1117/1.OE.59.12.120801

KEYWORDS: Beam splitters, Waveguides, Scattering, Matrices, Optical engineering, Laser scattering, Beryllium, Sensors, Transform theory, Single mode fibers

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Proceedings Article | 22 May 2014 Paper

Fixing basis mismatch in compressively sampled photonic link

J. Nichols, A. Oh, R. Willett, F. Bucholtz, C. McLaughlin

Proceedings Volume 9118, 91180N (2014) https://doi.org/10.1117/12.2053739

KEYWORDS: Error analysis, Reconstruction algorithms, Associative arrays, Analytical research, Computer programming, Computer engineering, Process modeling, Chemical elements, Photonics systems, Modulation

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Proceedings Article | 5 May 2011 Paper

On the use of diffusion maps for image fusion

J. Nichols, F. Bucholtz, C. Olson, K. P. Judd

Proceedings Volume 8050, 80501D (2011) https://doi.org/10.1117/12.884266

KEYWORDS: Diffusion, Sensors, Image fusion, Data acquisition, Physics, Data fusion, Principal component analysis, Image registration, Signal processing, Analytical research

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Proceedings Article | 13 May 2010 Paper

Improved outlier identification in hyperspectral imaging via nonlinear dimensionality reduction

F. Bucholtz, J. Michalowicz, C. Olson, J. Nichols

Proceedings Volume 7695, 769507 (2010) https://doi.org/10.1117/12.851811

KEYWORDS: Diffusion, Hyperspectral imaging, Distance measurement, Sensors, Principal component analysis, Associative arrays, Target detection, Sensor performance, Detection and tracking algorithms, Receivers

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Proceedings Article | 11 May 2009 Paper

An optimal nonlinear filter for detecting non-normality in a signal using the bicoherence

Jonathan Nichols, Colin Olson, Joseph Michalowicz, Frank Bucholtz

Proceedings Volume 7336, 73361D (2009) https://doi.org/10.1117/12.818483

KEYWORDS: Nonlinear filtering, Signal detection, Signal processing, Receivers, Statistical analysis, Electronic filtering, Linear filtering, Sensors, Complex systems, Analytical research

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Proceedings Article | 2 May 2009 Paper

Statistical properties of a short analog RF free-space optical link

R. Mahon, C. Moore, H. Burris, W. Rabinovich, G. Gilbreath, C. McDermitt, F. Bucholtz, J. Michalowicz, M. Suite

Proceedings Volume 7324, 73240D (2009) https://doi.org/10.1117/12.818153

KEYWORDS: Free space optics, Analog electronics, Transmitters, Modulators, Receivers, Photodetectors, Signal to noise ratio, Atmospheric optics, Radio optics, Modulation

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Proceedings Article | 2 May 2009 Paper

Long range analog RF free space optical communication link in a maritime environment

R. Mahon, E. Saint-Georges, R. Sawday, K. Grant, W. Martinsen, C. Moore, W. Scharpf, B. Xu, W. Rabinovich, C. Font, G. Gilbreath, F. Bucholtz, S. Uecke, M. Ferraro, K. Mudge, L. Thomas, M. Suite, B. Clare, H. Burris, C. McDermitt

Proceedings Volume 7324, 73240G (2009) https://doi.org/10.1117/12.819800

KEYWORDS: Frequency modulation, Fermium, Video, Modulation, Free space optics, Signal to noise ratio, Receivers, Analog electronics, Sensors, Modulators

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Proceedings Article | 30 April 2009 Paper

Tailored disruption of phase-locked loops via evolutionary algorithms

J. Nichols, F. Bucholtz, C. Olson, J. Michalowicz

Proceedings Volume 7347, 73470S (2009) https://doi.org/10.1117/12.818487

KEYWORDS: Modulation, Phase shift keying, Oscillators, Evolutionary algorithms, Sensors, Signal detection, Linear filtering, Electronic filtering, Complex systems, Ordinary differential equations

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Proceedings Article | 1 November 2006 Paper

Modeling and measurement of accuracy/distortion in an operationally passive FBG demodulation technique

F. Bucholtz, M. Seaver, J. Nichols, M. Todd, S. Trickey

Proceedings Volume 6371, 63710G (2006) https://doi.org/10.1117/12.684786

KEYWORDS: Demodulation, Distortion, Fiber Bragg gratings, Error analysis, Signal to noise ratio, Photodetectors, Interferometers, Optical filters, Fiber optics sensors, Interference (communication)

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Proceedings Article | 1 June 2005 Paper

Extending application of spectral object signature transforms: background candidate assessment

Dale Linne von Berg, Eric Allman, Rulon Mayer, Mel Kruer, Frank Bucholtz

Proceedings Volume 5806, (2005) https://doi.org/10.1117/12.605821

KEYWORDS: Transform theory, Sensors, Vegetation, Roads, Image sensors, Infrared sensors, Imaging systems, Image analysis, Infrared imaging, Statistical analysis

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Previous studies introduced, examined, and tested a variety of registration-free transforms, specifically the diagonal, whitening/dewhitening, and target CV (Covariance) transforms. These transforms temporally evolve spectral object signatures under varying conditions using imagery of regions of similar objects and content distribution from data sets collected at two different times. The transformed object signature is then inserted into the matched filter to search for targets. Spatial registration of two areas and/or finding two suitable candidate regions for the transforms is often problematic. This study examines and finds that the average correlation coefficient between the corrected histograms of the multi-spectral image cube collected at two times can assess the similarity of the areas and predict object detection performance. This metric is applied in four distinctive situations and tested on three independently collected data sets. In one data set, the correlation between histograms was taken from an airborne long wave infrared sensor that imaged objects in Florida and tested on registered images modified by systematically eliminating opposed ends of the image set. The other data set examined images of objects in Yellowstone National Park from a visible/near IR multi-spectral sensor. This comparison was also applied to images collected using oblique angles (depression angle of 10^°) of objects placed at Webster Field in Maryland. Candidate heterogeneous image areas were compared to each other using the average correlation coefficient and inserted into statistical transforms. In addition the correlations were computed between corrected histograms based on the normalized difference vegetation index (NDVI). Similarly, the analysis is applied to data collected at oblique angles (10^° depression angle). The net signal to clutter ratio depends on the average correlation coefficient and has low p-values (p<0.05). All statistical transforms (diagonal, whitening/dewhitening, target CV) performed comparably using the various backgrounds and scenarios. Objects that are spectrally distinct from the backgrounds followed the average correlation coefficient more closely than objects whose spectral signatures contained background components. This study is the first to examine the similarity of the corrected histograms and does not exclude other approaches for comparing areas.

Proceedings Article | 12 August 2004 Paper

A general spectral target signature transform

Dean Scribner, Frank Bucholtz, Rulon Mayer, Melvin Kruer

Proceedings Volume 5425, (2004) https://doi.org/10.1117/12.548758

KEYWORDS: Sensors, Target detection, Long wavelength infrared, Detection and tracking algorithms, Phase modulation, Image filtering, Image sensors, Image registration, Hyperspectral imaging, Optical filters

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SPIE Journal Paper | 1 July 2000

Real-time hyperspectral detection and cuing

Christopher Stellman, Geoffrey Hazel, Frank Bucholtz, Joseph Michalowicz, Alan Stocker, William Schaaf

OE, Vol. 39, Issue 07, (July 2000) https://doi.org/10.1117/12.10.1117/1.602577

KEYWORDS: Detection and tracking algorithms, Sensors, Cameras, Target detection, Hyperspectral target detection, Staring arrays, Algorithm development, CCD image sensors, Calibration, Imaging systems

Proceedings Article | 2 January 1998 Paper

Fiber optic sensor system for detection of organic contaminants in soil

J. McVicker, Kenneth Ewing, Sandeep Vohra, Frank Bucholtz, D. Eng, Jane Adams, G. Nau, Jasbinder Sanghera, Ishwar Aggarwal

Proceedings Volume 3211, (1998) https://doi.org/10.1117/12.345567

KEYWORDS: Fiber optics sensors, Soil contamination, Infrared spectroscopy, Infrared imaging, Fiber optics, Infrared radiation, Spectroscopy, Soil science

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Proceedings Article | 9 October 1995 Paper

Fiber optic IR reflectance sensor for the cone penetrometer

Ishwar Aggarwal, Frank Bucholtz, Sandeep Vohra, Jasbinder Sanghera, Kenneth Ewing, Gregory Nau

Proceedings Volume 2504, (1995) https://doi.org/10.1117/12.224110

KEYWORDS: Sensors, Reflectivity, Design for manufacturing, Infrared sensors, Mirrors, Fiber optics, Chalcogenides, Ocean optics, Optical fibers, Absorption

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Proceedings Article | 9 October 1995 Paper

IR fiber optic chemical sensors for hazardous waste detection

Kenneth Ewing, Frank Bucholtz, Gregory Nau, Ishwar Aggarwal

Proceedings Volume 2504, (1995) https://doi.org/10.1117/12.224084

KEYWORDS: Fiber optics, Design for manufacturing, Fiber optics sensors, Chemical fiber sensors, Infrared detectors, Infrared spectroscopy, Infrared radiation, Reflectance spectroscopy, Liquids, Ocean optics

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Proceedings Article | 19 January 1995 Paper

Detection of trace levels of volatile organic compounds using fiber optic Raman spectrometry

Frank Bucholtz, Tom Bilodeau, Kenneth Ewing, Gregory Nau, Ishwar Aggarwal

Proceedings Volume 2367, (1995) https://doi.org/10.1117/12.199659

KEYWORDS: Raman spectroscopy, Fiber optics, Spectroscopy, Carbon, Sensors, Optical fibers, Infrared spectroscopy, Fiber optics sensors, Infrared radiation, Monochromators

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Proceedings Article | 1 November 1994 Paper

Fiber optic magnetic sensor technology for undersea applications

Clay Kirkendall, A. Davis, Dominique Dagenais, S. Patrick, J. McVicker, Anthony Dandridge, Frank Bucholtz, Kee Koo, Carl Villarruel

Proceedings Volume 2292, (1994) https://doi.org/10.1117/12.191820

KEYWORDS: Transducers, Interferometers, Magnetism, Fiber optics, Fiber optics sensors, Sensors, Magnetic sensors, Optical isolators, Fiber lasers, Magnetometers

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Proceedings Article | 21 September 1994 Paper

Multiplexed fiber optic electric and magnetic field sensors

Frank Bucholtz, Sandeep Vohra, Larry Fabiny

Proceedings Volume 2294, (1994) https://doi.org/10.1117/12.187388

KEYWORDS: Magnetism, Magnetic sensors, Transducers, Interferometers, Sensors, Fiber optics, Signal detection, Phase shifts, Fiber optics sensors, Multiplexing

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Proceedings Article | 14 September 1994 Paper

Eight-element array of three-axis fiber optic magnetometers for undersea applications

Kee Koo, A. Davis, Carl Villarruel, H. Valo, Clay Kirkendall, Terje Lund, Gunnar Wang, J. McVicker, S. Patrick, Dominique Dagenais, Anthony Dandridge, Frank Bucholtz

Proceedings Volume 2360, (1994) https://doi.org/10.1117/12.185087

KEYWORDS: Magnetism, Interferometers, Sensors, Fiber optics, Magnetometers, Magnetic sensors, Fiber optics sensors, Signal processing, Optical fibers, Optical components

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Proceedings Article | 14 September 1994 Paper

Ultra-low-drift, sub-microvolt low-frequency fiber optic voltage sensor

Sandeep Vohra, Larry Fabiny, Frank Bucholtz

Proceedings Volume 2360, (1994) https://doi.org/10.1117/12.184969

KEYWORDS: Sensors, Fiber optics sensors, Fiber optics, Transducers, Interferometers, Interferometry, Lead, Magnesium, Nonlinear optics, Ceramics

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Proceedings Article | 14 September 1994 Paper

Experimental evidence of transducer self noise in magnetostrictive fiber optic sensors

Frank Bucholtz, Anthony Dandridge, Dominique Dagenais

Proceedings Volume 2360, (1994) https://doi.org/10.1117/12.185089

KEYWORDS: Transducers, Interferometers, Magnetism, Fiber optics sensors, Signal detection, Sensors, Magnetic sensors, Interferometry, Fiber optics tests, Fiber optics

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Proceedings Article | 28 January 1993 Paper

Recent advances in fiber optic magnetic sensing

F. Bucholtz

Proceedings Volume 10266, 102660E (1993) https://doi.org/10.1117/12.145195

KEYWORDS: Fiber optics sensors, Fiber optics, Magnetism, Magnetic sensors, Optical sensing, Magnetometers, Environmental sensing, Sensors, Remote sensing system design

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Proceedings Article | 1 February 1991 Paper

Recent developments in fiber optic magnetostrictive sensors

Kee Koo, Sandeep Vohra, Dominique Dagenais, Frank Bucholtz

Proceedings Volume 1367, (1991) https://doi.org/10.1117/12.24751

KEYWORDS: Sensors, Transducers, Magnetism, Magnetic sensors, Fiber optics, Magnetometers, Fiber optics sensors, Magnetostrictive materials, Interferometers, Interference (communication)

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Showing 5 of 23 publications

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