Mr. James M. Brase Profile

James M. Brase

Division Leader at Lawrence Livermore National Lab

SPIE Involvement:

Author

Publications (30)

Proceedings Article | 14 February 2007 Paper

Technical challenges for the future of high energy lasers

K. LaFortune, R. Hurd, S. Fochs, M. Rotter, P. Pax, R. Combs, S. Olivier, J. Brase, R. Yamamoto

Proceedings Volume 6454, 64540O (2007) https://doi.org/10.1117/12.701306

KEYWORDS: Wavefronts, Solid state lasers, Adaptive optics, Spatial frequencies, Laser systems engineering, Atmospheric propagation, Absorption, Laser energy, Diodes, Resonators

Read Abstract +

Proceedings Article | 19 May 2005 Paper

Image content engine (ICE): a system for fast image database searches

James Brase, Douglas Poland, David Paglieroni, George Weinert, Charles Grant, Aseneth Lopez, Sergei Nikolaev

Proceedings Volume 5781, (2005) https://doi.org/10.1117/12.608828

KEYWORDS: Databases, Image processing, 3D modeling, Model-based design, Interfaces, Detection and tracking algorithms, Image sensors, Geographic information systems, Feature extraction, Sensors

Read Abstract +

Proceedings Article | 12 April 2005 Paper

Intracavity adaptive correction of a high-average-power solid state heat-capacity laser

K. LaFortune, R. Hurd, J. Brase, R. Yamamoto

Proceedings Volume 5708, (2005) https://doi.org/10.1117/12.597467

KEYWORDS: Diagnostics, Solid state lasers, Wavefronts, Solid state physics, Resonators, Semiconductor lasers, Control systems, Laser resonators, Laser beam diagnostics, Deformable mirrors

Read Abstract +

Proceedings Article | 30 August 2004 Paper

Adapting high-resolution speckle imaging to moving targets and platforms

Carmen Carrano, James Brase

Proceedings Volume 5409, (2004) https://doi.org/10.1117/12.542352

KEYWORDS: Image processing, Speckle, Speckle imaging, Image enhancement, Cameras, Atmospheric optics, Data acquisition, Imaging systems, Surveillance, Detection and tracking algorithms

Read Abstract +

Proceedings Article | 1 June 2004 Paper

Intracavity adaptive correction of a 10-kW solid state heat-capacity laser

Kai LaFortune, Randall Hurd, Erik Johansson, Clifford Dane, Scott Fochs, James Brase

Proceedings Volume 5333, (2004) https://doi.org/10.1117/12.531034

KEYWORDS: Wavefront sensors, Wavefronts, Control systems, Resonators, Adaptive optics, Actuators, Laser beam diagnostics, Diagnostics, Solid state lasers, Deformable mirrors

Read Abstract +

Proceedings Article | 9 December 2002 Paper

Modeling of adaptive-optics-based free-space communications systems

Scott Wilks, James Morris, James Brase, Scot Olivier, John Henderson, Charles Thompson, Michael Kartz, A. Ruggerio

Proceedings Volume 4821, (2002) https://doi.org/10.1117/12.453528

KEYWORDS: Adaptive optics, Atmospheric propagation, Atmospheric modeling, Receivers, Laser beam propagation, Telecommunications, Atmospheric optics, Mirrors, Optical simulations, Turbulence

Read Abstract +

Proceedings Article | 4 February 2002 Paper

Practical high-order adaptive optics systems for extrasolar planet searches

Bruce Macintosh, Scot Olivier, Brian Bauman, James Brase, Emily Carr, Carmen Carrano, Donald Gavel, Claire Max, Jennifer Patience

Proceedings Volume 4494, (2002) https://doi.org/10.1117/12.454815

KEYWORDS: Adaptive optics, Telescopes, Exoplanets, Wavefront sensors, Wavefronts, Planets, Signal to noise ratio, Microelectromechanical systems, Space telescopes, Speckle

Read Abstract +

Proceedings Article | 4 February 2002 Paper

Horizontal path laser communications employing MEMS adaptive optics correction

Charles Thompson, Scott Wilks, James Brase, Richard Young, Gary Johnson, Anthony Ruggiero

Proceedings Volume 4494, (2002) https://doi.org/10.1117/12.454782

KEYWORDS: Adaptive optics, Telecommunications, Receivers, Microelectromechanical systems, Laser communications, Atmospheric propagation, Sensors, Optical communications, Computing systems, Transmitters

Read Abstract +

Proceedings Article | 22 November 2000 Paper

Performance of a high-resolution wavefront control system using a liquid crystal spatial light modulator

Charles Thompson, Michael Kartz, Scot Olivier, James Brase, Carmen Carrano, David Lande, Brian Bauman, Robert Sawvel, Dennis Silva

Proceedings Volume 4124, (2000) https://doi.org/10.1117/12.407499

KEYWORDS: Spatial light modulators, Liquid crystals, Wavefronts, Adaptive optics, Control systems, LCDs, Sensors, Deformable mirrors, Cameras, Algorithm development

Read Abstract +

Proceedings Article | 22 November 2000 Paper

Fast Fourier and wavelet transforms for wavefront reconstruction in adaptive optics

Farid Dowla, James Brase, Scot Olivier, Charles Thompson

Proceedings Volume 4124, (2000) https://doi.org/10.1117/12.407495

KEYWORDS: Wavelets, Wavelet transforms, Wavefront reconstruction, Adaptive optics, Reconstruction algorithms, Wavefronts, Fourier transforms, Real time imaging, Microelectromechanical systems, Spatial filters

Read Abstract +

Proceedings Article | 9 October 2000 Paper

Real-time control system for adaptive resonator

Laurence Flath, Jong An, James Brase, Randall Hurd, Michael Kartz, Robert Sawvel, Dennis Silva

Proceedings Volume 4118, (2000) https://doi.org/10.1117/12.403595

KEYWORDS: Control systems, Digital signal processing, Resonators, Adaptive optics, Computing systems, Wavefronts, Deformable mirrors, Wavefront sensors, Human-machine interfaces, Control systems design

Read Abstract +

Proceedings Article | 7 July 2000 Paper

Initial performance of the Keck AO wavefront controller system

Erik Johansson, D. Scott Acton, Jong An, Kenneth Avicola, Barton Beeman, James Brase, Carmen Carrano, John Gathright, Donald Gavel, Randall Hurd, Olivier Lai, William Lupton, Bruce Macintosh, Claire Max, Scot Olivier, J. Shelton, Paul Stomski, Kevin Tsubota, Kenneth Waltjen, James Watson, Peter Wizinowich

Proceedings Volume 4007, (2000) https://doi.org/10.1117/12.390320

KEYWORDS: Wavefronts, Adaptive optics, Deformable mirrors, Control systems, Data modeling, Diagnostics, Mathematical modeling, Mirrors, Keck Observatory, Telescopes

Read Abstract +

Proceedings Article | 3 November 1999 Paper

High-resolution wavefront control using liquid crystal spatial light modulators

Scot Olivier, Michael Kartz, Brian Bauman, James Brase, Curtis Brown, Jeffrey Cooke, Deanna Pennington, Dennis Silva

Proceedings Volume 3760, (1999) https://doi.org/10.1117/12.367602

KEYWORDS: Liquid crystals, Wavefronts, Spatial light modulators, Deformable mirrors, Amorphous silicon, LCDs, Sensors, Wavefront sensors, High power lasers, Reconstruction algorithms

Read Abstract +

Proceedings Article | 27 September 1999 Paper

Improved performance of the laser guide star adaptive optics system at Lick Observatory

Scot Olivier, Donald Gavel, Herbert Friedman, Claire Max, Jong An, Kenneth Avicola, Brian Bauman, James Brase, Eugene Campbell, Carmen Carrano, Jeffrey Cooke, Gary Freeze, Elinor Gates, Vernon Kanz, Thomas Kuklo, Bruce Macintosh, Michael Newman, Edward Pierce, Kenneth Waltjen, James Watson

Proceedings Volume 3762, (1999) https://doi.org/10.1117/12.363561

KEYWORDS: Adaptive optics, Laser guide stars, Stars, Telescopes, Calibration, Observatories, Wavefront sensors, Laser systems engineering, Astronomy, Cameras

Read Abstract +

Proceedings Article | 11 September 1998 Paper

Status of the W.M. Keck Adaptive Optics Facility

Peter Wizinowich, D. Scott Acton, Tom Gregory, Paul Stomski, Jong An, Kenneth Avicola, James Brase, Herbert Friedman, Donald Gavel, Claire Max

Proceedings Volume 3353, (1998) https://doi.org/10.1117/12.321714

KEYWORDS: Telescopes, Mirrors, Adaptive optics, Wavefronts, Control systems, Cameras, Sensors, Stars, Deformable mirrors, Human-machine interfaces

Read Abstract +

Proceedings Article | 11 September 1998 Paper

Wavefront control system for the Keck telescope

James Brase, Jong An, Kenneth Avicola, Barton Beeman, Donald Gavel, Randall Hurd, Brooks Johnston, Holger Jones, Thomas Kuklo, Claire Max, Scot Olivier, Kenneth Waltjen, James Watson

Proceedings Volume 3353, (1998) https://doi.org/10.1117/12.321687

KEYWORDS: Control systems, Telescopes, Wavefronts, Deformable mirrors, Adaptive optics, Laser guide stars, Wavefront sensors, Actuators, Mirrors, Imaging systems

Read Abstract +

Proceedings Article | 11 September 1998 Paper

Phase retrieval techniques for adaptive optics

Carmen Carrano, Scot Olivier, James Brase, Bruce Macintosh, Jong An

Proceedings Volume 3353, (1998) https://doi.org/10.1117/12.321633

KEYWORDS: Phase retrieval, Adaptive optics, Wavefronts, Cameras, Calibration, Error analysis, Turbulence, Image retrieval, Tin, Deformable mirrors

Read Abstract +

Proceedings Article | 17 October 1997 Paper

First significant image improvement from a sodium-layer laser guide star adaptive optics system at Lick Observatory

Scot Olivier, Claire Max, Herbert Friedman, Jong An, Kenneth Avicola, Barton Beeman, Horst Bissinger, James Brase, Gaylen Erbert, Donald Gavel, Vernon Kanz, Bruce Macintosh, Kurt Neeb, Kenneth Waltjen

Proceedings Volume 3126, (1997) https://doi.org/10.1117/12.290151

KEYWORDS: Laser guide stars, Stars, Adaptive optics, Telescopes, Wavefronts, Mirrors, Calibration, Wavefront sensors, Cameras, Sensors

Read Abstract +

Proceedings Article | 25 August 1995 Paper

Performance of laser guide star adaptive optics at Lick Observatory

Scot Olivier, Jong An, Kenneth Avicola, Horst Bissinger, James Brase, Herbert Friedman, Donald Gavel, Claire Max, J. Thaddeus Salmon, Kenneth Waltjen

Proceedings Volume 2534, (1995) https://doi.org/10.1117/12.217748

KEYWORDS: Adaptive optics, Telescopes, Laser guide stars, Stars, Wavefronts, Observatories, Servomechanisms, Laser systems engineering, Deformable mirrors, Wavefront sensors

Read Abstract +

Proceedings Article | 28 March 1995 Paper

Nonlinear image filtering within IDP++

Sean Lehman, Mel Wieting, James Brase

Proceedings Volume 2424, (1995) https://doi.org/10.1117/12.205226

KEYWORDS: Nonlinear filtering, Digital filtering, Signal to noise ratio, Synthetic aperture radar, Filtering (signal processing), Image filtering, Radar, C++, Signal processing, Linear filtering

Read Abstract +