RSI's diversity of expertise is demonstrated by our publications.  Feel free to ask us for reproductions.

J.N. Caron, "Displacement and Deflection Sensitivity of Gas-coupled Laser Acoustic Detection," to be published in Laser Ultrasonics,  2008. abstract paper

P. Blake, F. MIller, T. Zukowski, E Canavan, A. Crane, T. Madison, D. Miller, "Cryogenic system for interferometric measurement of dimensional changes at 40 K: design and performance",  Proceedings of the SPIE, Volume 6692, pp. 669207 (2007).

W.E. Vanderlinde and J.N. Caron, "Blind Deconvolution of SEM Images," Proceedings of the 33rd International Symposium for Testing and Failure Analysis, November, 2007,  p. 97-102. abstract

Jacob Grun, Charles K. Manka, Sergei Nikitin, Daniel Zabetakis, Gelu Comanescu, David Gillis, and Jeffrey Bowles, " Identification of Bacteria from Two-Dimensional Resonant-Raman Spectra," Analytic Chemistry, ASAP Article 10.1021/ac070681h S0003-2700(07)00681-6, 2007 abstract

N. Namazi, R. Burris, Jr., and G. C. Gilbreath, "Analytical approach to the calculation of probability of bit error and optimum thresholds in free-space optical communication,"  Optical Engineering, Volume 46, Issue 2, 025007, (2007). abstract

J.N. Caron, D.M. Huber, V. DiPietro, and C.J. Rollins, "Progress towards a portable laser-based ultrasound sensor using gas-coupled laser acoustic detection," Review of Progress in Quantitative Nondestructive Evaluation , ed. by D.O. Thompson and D.E. Chimenti, AIP, Vol. 24A, 2005.

M. F. Stell, C. I. Moore, H. R. Burris, M. R. Suite, M. J. Vilcheck, M. A. Davis, R. Mahon, E. Oh, W. S. Rabinovich, G. C. Gilbreath, W. J. Scharpf, and A. E. Reed, ``Passive optical monitor for atmospheric turbulence and windspeed,'' Proceedings of SPIE, Free-Space Laser Communication and Active Laser Illumination III, Vol. 5160, p. 422, (2004). abstract

J.N. Caron, "Progress towards a portable laser-based ultrasound sensor using gas-coupled laser acoustic detection," Review of Progress in Quantitative Nondestructive Evaluation , Vol. 24, 2004. abstract

M. T. Boies, B. D. Green, G. E. Galica, O. M. Uy, R. C. Benson, D. M. Silver, B. E. Wood, J. C. Lesho, D. F. Hall, and J. S. Dyer, “The 8-year report on MSX thermal blanket outgassing: an inexhaustible reservoir,” Proc. SPIE, Vol. 5526A,  Denver, CO, August 2004.

J.N. Caron, "Blind deconvolution of audio-frequency signals using the self-deconvolving data restoration algorithm," Journal of the Acoustical Society of America, Vol. 116, Issue 1, pp. 373-378, 2004. abstract

F. Tasker, D.M. Huber, B. Plourde, L. Palecki, E. Sydow, and A. Reed, “Analysis and Experiments on a Sparse-Aperture Test-bed Metrology and Control System”, IEEE Aerospace Conference, Paper # 1282, 2003.

B. McAndrew, J. Kline, and R. Miles,   "Aerodynamic Control of a Symmetric Cone in Compressible Flow Using Heat Addition,"  41st AIAA Aerospace Sciences Meeting and Exhibit, 2003. abstract

Zaidi, S., R. Murray, M. Shneider, S. Macheret, R. Miles, and J. Kline.  2003.  Nonequilibrium Ionization Techniques for MHD Power Extraction in High-Speed Flows.  41st AIAA Aerospace Sciences Meeting and Exhibit.

J.N. Caron, Y. Yang, J.B. Mehl and K.V. Steiner, "Overview: Ultrasound sensing using Gas-coupled Laser Acoustic Detection," Nondestructive Testing and Evaluation, Vol. 17, 2002, p. 169.

J. Bremer, S. Etemad, B. Zukowski, B. Pasquale, T. Zukowski, R. Prince, V. Holmes, J. Ryskewich, P. O'Niell, J. Murphy-Morris, "Improved wide-field collimator for dynamic testing of the GOES imager and sounder", Proceedings of the SPIE, Volume 4814, pp. 194-200 (2002).

C. I. Moore, H. R. Burris, M. R. Suite, M. F. Stell, M. J. Vilcheck, M. A. Davis, R. Smith, R. Mahon,  W. S. Rabinovich, J. P. Koplow, S. W. Moore, W. J. Scharpf, and A. E. Reed, "Free-space high-speed laser communication link across the Chesapeake Bay,'' Proceedings of SPIE, Free-Space Laser Communication and Laser Imaging II, Vol. 4821, p. 474, (2002).

B. McAndrew, J. Kline, J. Fox, D. Sullivan, and R. Miles,   "Supersonic vehicle control by microwave plasma discharges,"  AIAA 2002-0354, 2002.

J.N. Caron, N.M. Namazi, and C.J. Rollins, "Noniterative blind data restoration by use of an extracted filter function," Applied Optics, November 10, 2002, Vol 41, No. 32, p. 6884. abstract

J. Clem, W. Droege, P.A. Evenson, H. Fischer, G. Green, D. Huber, H. Kunow, and D. Seckel, ``A Measurement of the Flux of Cosmic Ray Iron at 5 X 10¹³ eV'', Astroparticle Physics, Vol. 16, No. 4, p. 387, 2002.

J.N. Caron, Y. Yang, J.B. Mehl and K.V. Steiner, "Gas-coupled laser acoustic detection for Ultrasound Inspection of Composite Materials," Materials Evaluation, 2001.

Kline, J., J.R. Fox, V. DiPietro, and J. Brandenburg. A Review of the Compact Micro-Torus eXperiment. 4th Symposium on the Current Trends in International Fusion Research: A Review. Washington, D.C. 2001.

J.N. Caron, N.M. Namazi, R.L. Lucke, C.J. Rollins, and P.R. Lynn, Jr., "Blind data restoration with an extracted filter function,"  Optics Letters, August 1, 2001, Vol 26, No.15, p. 1164.

M. T. Boies, C. M. Gittins, B. D. Green, W. J. Marinelli, P. A. Mulhall, T. Nakamura, P. Ponsardin, D. Richter, H. Tai and M. Tamura, “Ground-Mobile LIDAR for the Detection of Leaks from Natural Gas Pipelines” Proc. SPIE, Vol. 4574, Boston, MA, November 2001.

Kline, J., R. Murray, and R. Miles.  2000.  Microwave Plasma-Electron Beam Interactions for Hypersonic Flow Control.  27th IEEE International Conference on Plasma Science.

J.N. Caron, "Multiple-beam detection using Gas-coupled Laser Acoustic Detection," Review of Progress in Quantitative Nondestructive Evaluation, vol 20, 2000. abstract

John F. Kline, Jon R. Fox, Vincent DiPietro, John Vandenburg, Characterization of the Compact Micro Torus eXperiment. The 27th IEEE International Conference on Plasma Science. New Orleans, LA. June 6, 2000.

J. M. Clem, P. Evenson, D. Huber, R. Pyle, C. Lopate, and J. A. Simpson, ``Charge sign dependence of cosmic ray modulation near a rigidity of 1 GV,'' Journal of Geophys. Res., p. 22938, 2000.

M. T. Boies, B. D. Green, G. E. Galica, O. M. Uy, D. M. Silver, R. C. Benson, B. E. Wood, D. F. Hall, and J. S. Dyer, “Measurement of long-term outgassing from the materials used on the MSX spacecraft,” Proc. SPIE, Vol. 4096, San Diego, CA, August 2000.

J. Fisher, J. Antoniades, C. Rollins, and L. Xiang: “A hyperspectral imaging sensor for the coastal environment” in International Optical Design Conference, Proc. SPIE 3842, pp. 179-186 (1998). abstract

M. T. Boies, B. D. Green, G. E. Galica, O. M. Uy, D. M. Silver, R. C. Benson, J. C. Lesho, B. E. Wood, D. F. Hall, and J. S. Dyer, “Ambient pressure environment surrounding the MSX spacecraft during the first year on orbit,” Proc. SPIE, 3427A (1998).

J. R. Fox, I.A. Akimov, X.X. Xi, and A. A. Sirenko. "In situ studies of electronic and vibrational properties of Si nanoparticles." In L.T. Canham, et al. , editors, Advances in Microcrystalline and Nanocrystalline Semiconductors, volume 536, page 287. Materials Research Society, 1998.

Sprague, J., J. Grun, R. Burris, J. Kline, K. Lewis, M. Corbett, R. Blacker, G. Gurtman, M. Rice, and R. Wilson.  1998.  In-Situ Optical Techniques for the Real-Time Characterization of Laser Damage Processes.  AFRL Laser Hardened Materials Program Review.

J. Grun, C. K. Manka, C. A. Hoffman, J. R. Meyer, O. J. Glembocki, R. Kaplan, S. B. Qadri, E. F. Skelton, D. Donnelly and B. Covington, "Athermal Annealing of Silicon," Phys. Rev. Lett. 78, 1584 - 1587 (1997)

Gilbreath, C.G., W. S. Rabinovich, R. Mahon, M.R. Corson, M. Ferraro, D.S. Katzer, K. Ikossi-Anastasiou, T. Meehan, and J.F. Kline.  1997.  Modulating Retroreflector Architecture Using Multiple Quantum Wells for Free Space Optical Communications.  SPIE 3491: 581-6.

M. T. Boies, T. E. Phillips, R. E. Erlandson, D. M. Silver, R. C. Benson, J. C. Lesho, O. M. Uy, B. D. Green, G. E. Galica, J. S. Dyer, B. E. Wood, D. F. Hall, “Effect of the polar auroral regions on the Midcourse Space Experiment cold cathode pressure sensor,” Proc. SPIE, 3124 (1997).

Manka, C.K. and J. Kline.  1996.  Fast Fiber Optic Pressure Sensors.  ISA Blast and Shock Symposium.

M. T. Boies and T. D. Cole, “Design, development, and flight qualification of the optical receiver for the NEAR laser rangefinder,” Proc. SPIE, 2748 (1996).

J. R. Fox, G. P. Lopinski, and J. S. Lannin, G. B. Adams, J. B. Page, and J. E. Fischer. Neutron diffraction and structural models of RbC60 phases. Chem. Phys. Lett., 249(3):195, 1996.

M. T. Boies, T. D. Cole, A. S. Eldinary, and R. A. Reiter, “Optical system development and performance testing of the NEAR laser rangefinder,” Proc. SPIE, 2811 (1996).

M. T. Boies, T. E. Phillips, D. M. Silver, A. S. El-Dinary, O. M. Uy, J. S. Dyer, and J. D. Mill, “Total pressure sensor results from the early operations phase of the MSX Mission,” Proc. SPIE, 2864 (1996).

Nozette, C.J. Rollins, et. al, ``The Clementine Mission to the Moon: Scientific Overview,'' Science, Vol. 266, December, 1994.

R. C. Elton, D.-M. Billings, C. K. Manka, H. R. Griem, J. Grun, B. H. Ripin, and J. Resnick, "Spectroscopic diagnostics in a colliding-blast-wave experiment," Phys. Rev. E 49, 1512 (1994)

C.J. Rollins, M.R. Corson, J.H. Resnick, J. Ivory, I. Lewis, W. Collins, and T. Smathers, ``Alignment, Calibration, and Integration of the Clementine Imaging Cameras,'' AIAA/USU Conference on Small Satellites, 1994.

M. Chou, T. Zukowski, “Ignition of H2/O2/NH3, H2/Air/NH3, and CH4/O2/NH3 Mixtures by Excimer Laser Photolysis of NH3”, Combustion and Flame 87 (2): 191-202, 1991.

G. Weyl, C.J. Rollins, M. Gauthier, and C. Goldey, ``Ignition and Maintenance of Laser Supported Detonation Waves,'' PSI-SR-410 (Sept. 1989), AIAA Journal.

A. Bailey, N. Humer, E. Pugh, C.J. Rollins, and L. Popper, ``Modeling of Material Response to Repetitive Pulse Lasers,'' PSI SR-421 (April 1989), AIAA-89-1910, \AIAA 20th Fluid Dynamics, Plasma Dynamics, and Lasers Conference, Buffalo NY, June 1989.

J. Grun, M. E. Emery, C. K. Manka, T. N. Lee, E. A. McLean, A. Mostovych, J. Stamper, S. Bodner, S. P. Obenschain, and B. H. Ripin, "Rayleigh-Taylor instability growth rates in targets accelerated with a laser beam smoothed by induced spatial incoherence," Phys. Rev. Lett. 58, 2672 (1987).

G. Indebetuow, T. Zukowski, “Nonlinear Optical Effects in Absorbing Fluids: Some Undergraduate Experiments”,  Eur. J. of Phys, 5, 1984.

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Patents

United States Patent      6,441,552   and 6,838,831
Apparatus and methods for generating persistent ionization plasmas

Abstract

A persistent ionization plasma generator is described that forms a plasma in a cavity that persists for a time after termination of the exciting RF electric field. The plasma generator includes a RF cavity that is in fluid communication with a source of ionizing gas. The RF cavity can be at substantially atmospheric pressure. An RF power source that generates an RF electric field is electromagetically coupled to the RF cavity. An ultraviolet light source is positioned in optical communication to the cavity. An antenna is positioned within the cavity adjacent to the ultraviolet light source. A chamber for confining the plasma can be positioned in the cavity around the antenna.

Inventors: Brandenburg; John E. (Springfield, VA), Kline; John F. (Hopewell, NJ), Resnick; Joshua H. (Annandale, VA)
Assignee:     Physical Sciences Inc. (Andover, MA)

United States Patent      6,001,715
 Non-thermal process for annealing crystalline materials

Abstract

Bulk crystalline materials are annealed by introducing into them mechanical energy of sufficient intensity to create a large amplitude sound wave. The mechanical energy may be introduced into the material, for example, by laser ablation. Where the bulk crystalline material is a doped semiconductor, the process also electrically activates the material.

Inventors: Manka; Charles Keith (Alexandria, VA), Grun; Jacob (Silverspring, MD), Covington; Billy Charles (Huntsville, TX), Donnelly; David William (Huntsville, TX)
Assignee: The United States of America as represented by the Secretary of the Navy

United States Patent      6,041,020
 Gas-coupled laser acoustic detection

Abstract

The investigation, development and application of a laser-based ultrasonic inspection system to the problems of evaluating polymer/graphite composite materials has been realized. The use of lasers to generate and detect ultrasonic waveforms in materials provides a means to detect material properties remotely. The study consisted of three main aspects: 1) A confocal Fabry-Perot (CFP) based system has been devolved which uses light reflected from the CFP interferometer to derive the ultrasonic signal. This allows higher frequency components of the detected waveforms to be discerned when compared to a CFP-based system using light transmitted through the CFP interferometer. 2) Thermoelastic and ablative laser generation of acoustic pulses in polymer/graphite composite materials has been investigated. Thermoelastic generation of ultrasound occurs when thermal energy deposited by a pulsed laser creates a localized expansion in the material. Ablative generation of ultrasound results from the creation of a plasma above the surface when the laser pulse surpasses an intensity threshold. 3) A novel technique, designated Gas-Coupled Laser  Acoustic Detection (GCLAD), has been realized, in which the ultrasonic wave is detected optically after it has been transmitted from sample to air. This technique has the advantage of being independent of surface reflectivity and optical smoothness, and has comparable sensitivity to the CFP-based system.

Inventors:      Caron; James N. (Silver Spring, MD), Mehl; James B. (Orcas, WA), Steiner; Karl V. (Newark, DE)
Assignee:     James N. Caron

United States Patent      6,859,564
Signal processing using the self-deconvolving data reconstruction algorithm

Abstract

A signal processing algorithm has been developed in which a filter function is extracted from degraded data through mathematical operations. The filter function can then be used to restore much of the degraded content of the data through use of any deconvolution algorithm. This process can be performed without prior knowledge of the detection system, a technique known as blind deconvolution. The extraction process, designated Self-deconvolving Data Reconstruction Algorithm (SeDDaRA), has been used successfully to restore digitized photographs, digitized acoustic waveforms, and other forms of data. The process is non-iterative, computationally efficient, and requires little user input. Implementation is straight-forward, allowing inclusion into all types of signal processing software and hardware. The novelty of the invention is the application of a power law and smoothing function to the degraded data in frequency space. Two methods for determining the value of the power law are discussed. The first method is by educated guess where the value is deemed a constant of frequency that ranges between zero and one. This approach requires no knowledge of the original data or the degradation and is quite effective. The second method compares the frequency spectrum of the degraded data to the spectrum of a signal with the desired frequency response. This approach produces a superior result, but requires additional processing.

Inventors:      Caron; James Norbert (Silver Spring, MD)
Assignee:     Caron; James N. (Silver Springs, MD)