Mr. Viswa Velur Profile

Viswa Velur

Business Development Manager at Zygo Corporation

SPIE Involvement:

Author

Publications (15)

Proceedings Article | 17 September 2012 Paper

Paper

The Gattini South Pole UV experiment

Anna Moore, Sara Ahmed, Michael Ashley, Ernest Croner, Alex Delacroix, Yusuke Ebihara, Jason Fucik, D. Christopher Martin, Viswa Velur, Allan Weatherwax

Proceedings Volume 8444, 84441Q (2012) https://doi.org/10.1117/12.927313

KEYWORDS: Imaging systems, Spectrographs, Telescopes, Image filtering, Linear filtering, Ultraviolet radiation, Optical filters, Cameras, Optical instrument design, Optical fabrication

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Proceedings Article | 28 July 2010 Paper

Paper

W. M. Keck Observatory's next-generation adaptive optics facility

P. Wizinowich, S. Adkins, R. Dekany, D. Gavel, C. Max, R. Bartos, J. Bell, A. Bouchez, J. Chin, A. Conrad, A. Delacroix, E. Johansson, R. Kupke, C. Lockwood, J. Lyke, F. Marchis, E. McGrath, D. Medeiros, M. Morris, D. Morrison, C. Neyman, S. Panteleev, M. Pollard, M. Reinig, T. Stalcup, S. Thomas, M. Troy, K. Tsubota, V. Velur, K. Wallace, E. Wetherell

Proceedings Volume 7736, 77360K (2010) https://doi.org/10.1117/12.857628

KEYWORDS: Adaptive optics, Telescopes, Wavefront sensors, Stars, Tomography, Control systems, Keck Observatory, Galactic astronomy, Wavefronts, Sensors

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Proceedings Article | 20 July 2010 Paper

Paper

The Palomar Transient Factory Survey Camera: first year performance and results

N. Law, R. Dekany, G. Rahmer, D. Hale, R. Smith, R. Quimby, E. Ofek, M. Kasliwal, J. Zolkower, V. Velur, J. Henning, K. Bui, D. McKenna, P. Nugent, J. Jacobsen, R. Walters, J. Bloom, J. Surace, C. Grillmair, R. Laher, S. Mattingly, S. Kulkarni

Proceedings Volume 7735, 77353M (2010) https://doi.org/10.1117/12.857400

KEYWORDS: Phase transfer function, Cameras, CCD cameras, Telescopes, Stars, Optical filters, Imaging systems, Observatories, Camera shutters, Image quality

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Proceedings Article | 8 August 2008 Paper

Paper

W. M. Keck Observatory's next-generation adaptive optics facility

P. Wizinowich, R. Dekany, D. Gavel, C. Max, S. Adkins, B. Bauman, J. Bell, A. Bouchez, M. Britton, J. Chin, R. Flicker, E. Johansson, R. Kupke, D. Le Mignant, C. Lockwood, D. Medeiros, E. McGrath, A. Moore, C. Neyman, M. Reinig, V. Velur

Proceedings Volume 7015, 701511 (2008) https://doi.org/10.1117/12.790154

KEYWORDS: Adaptive optics, Wavefront sensors, Telescopes, Wavefronts, Stars, Control systems, Sensors, Relays, Point spread functions, Tomography

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Proceedings Article | 15 July 2008 Paper

Paper

Concept for the Keck Next Generation Adaptive Optics system

Donald Gavel, Richard Dekany, Claire Max, Peter Wizinowich, Sean Adkins, Brian Bauman, Jim Bell, Erik Johansson, Renate Kupke, Chris Lockwood, Anna Moore, Chris Neyman, Marc Reinig, Viswa Velur

Proceedings Volume 7015, 701567 (2008) https://doi.org/10.1117/12.790250

KEYWORDS: Adaptive optics, Relays, Stars, Sensors, Wavefront sensors, Mirrors, Laser guide stars, Wavefronts, Microelectromechanical systems, Control systems

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Proceedings Article | 14 July 2008 Paper

Paper

Low-order wavefront sensing in tomographic multi-beacon adaptive optics systems

Viswa Velur, Ralf Flicker, Richard Dekany, Gustavo Rahmer, Roger Smith, Anna Moore

Proceedings Volume 7015, 70154W (2008) https://doi.org/10.1117/12.788019

KEYWORDS: Sensors, Adaptive optics, Wavefront sensors, Stars, Wavefronts, Sensor performance, Cryogenics, Infrared sensors, Prototyping, Signal to noise ratio

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Proceedings Article | 11 July 2008 Paper

Paper

The 12Kx8K CCD mosaic camera for the Palomar Transient Factory

Gustavo Rahmer, Roger Smith, Viswa Velur, David Hale, Nicholas Law, Khanh Bui, Hal Petrie, Richard Dekany

Proceedings Volume 7014, 70144Y (2008) https://doi.org/10.1117/12.788086

KEYWORDS: Charge-coupled devices, Cameras, Telescopes, Space telescopes, CCD cameras, Camera shutters, Sensors, Optical filters, Head, Profilometers

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Proceedings Article | 10 July 2008 Paper

Paper

Getting lucky with adaptive optics: diffraction-limited resolution in the visible with current AO systems on large and small telescopes

N. Law, R. Dekany, C. Mackay, A. Moore, M. Britton, V. Velur

Proceedings Volume 7015, 70152I (2008) https://doi.org/10.1117/12.788621

KEYWORDS: Adaptive optics, Imaging systems, Telescopes, Cameras, Lamps, Point spread functions, Device simulation, Stars, Monte Carlo methods, Image resolution

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Proceedings Article | 10 July 2008 Paper

Paper

Facilitizing the Palomar AO laser guide star system

Jennifer Roberts, Antonin Bouchez, John Angione, Rick Burruss, John Cromer, Richard Dekany, Stephen Guiwits, John Henning, Jeff Hickey, Edward Kibblewhite, Daniel McKenna, Anna Moore, Harold Petrie, J. Shelton, Robert Thicksten, Thang Trinh, Renu Tripathi, Mitchell Troy, Tuan Truong, Viswa Velur

Proceedings Volume 7015, 70152S (2008) https://doi.org/10.1117/12.790042

KEYWORDS: Telescopes, Adaptive optics, Stars, Cameras, Camera shutters, Sodium, Laser safety, Laser guide stars, Servomechanisms, Control systems

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Proceedings Article | 10 July 2008 Paper

Paper

The PALM-3000 high-order adaptive optics system for Palomar Observatory

Antonin Bouchez, Richard Dekany, John Angione, Christoph Baranec, Matthew Britton, Khanh Bui, Rick Burruss, John Cromer, Stephen Guiwits, John Henning, Jeff Hickey, Daniel McKenna, Anna Moore, Jennifer Roberts, Thang Trinh, Mitchell Troy, Tuan Truong, Viswa Velur

Proceedings Volume 7015, 70150Z (2008) https://doi.org/10.1117/12.789777

KEYWORDS: Wavefronts, Adaptive optics, Actuators, Infrared sensors, Sensors, Wavefront sensors, Telescopes, Stars, Visible radiation, Deformable mirrors

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Proceedings Article | 7 July 2008 Paper

Paper

CAMERA: a compact, automated, laser adaptive optics system for small aperture telescopes

Matthew Britton, Viswa Velur, Nick Law, Philip Choi, Bryan Penprase

Proceedings Volume 7015, 701516 (2008) https://doi.org/10.1117/12.789973

KEYWORDS: Cameras, Adaptive optics, Telescopes, Stars, Imaging systems, Microelectromechanical systems, Sensors, Wavefront sensors, Astronomy, Optical design

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Proceedings Article | 29 June 2006 Paper

Paper

POSM: a new concept for fiber positioning

Anna Moore, Rich Dekany, Damien Jones, Roger Smith, Keith Taylor, Viswa Velur

Proceedings Volume 6269, 62691M (2006) https://doi.org/10.1117/12.672625

KEYWORDS: Beam steering, Optical fibers, Mirrors, Telescopes, Polishing, Collimators, Image quality, Spectrographs, Monochromatic aberrations, Multiplexing

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Proceedings Article | 28 June 2006 Paper

Paper

PALM-3000: visible light AO on the 5.1-meter Telescope

Richard Dekany, Antonin Bouchez, Matthew Britton, Viswa Velur, Mitchell Troy, J. Chris Shelton, Jennifer Roberts

Proceedings Volume 6272, 62720G (2006) https://doi.org/10.1117/12.674496

KEYWORDS: Adaptive optics, Stars, Telescopes, Visible radiation, Wavefront sensors, Laser guide stars, Wavefronts, Infrared radiation, Actuators, Sodium

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Proceedings Article | 27 June 2006 Paper

Paper

Multiple guide star tomography demonstration at Palomar Observatory

V. Velur, R. Flicker, B. Platt, M. Britton, R. Dekany, M. Troy, J. Roberts, J. Shelton, J. Hickey

Proceedings Volume 6272, 62725C (2006) https://doi.org/10.1117/12.671666

KEYWORDS: Stars, Wavefronts, Adaptive optics, Wavefront sensors, Tomography, Cameras, Statistical analysis, Error analysis, Sensors, Thirty Meter Telescope

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Proceedings Article | 25 October 2004 Paper

Paper

Implementation of the Chicago sum frequency laser at Palomar laser guide star test bed

Viswa Velur, Edward Kibblewhite, Richard Dekany, Mitchell Troy, Hal Petrie, Robert Thicksten, Gary Brack, Thang Trin, Matthew Cheselka

Proceedings Volume 5490, (2004) https://doi.org/10.1117/12.550675

KEYWORDS: Telescopes, Mirrors, Adaptive optics, Laser guide stars, Cameras, Pulsed laser operation, Control systems, Laser safety, Observatories, Laser beam propagation

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Showing 5 of 15 publications

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