Dr. Locke D. Spencer Profile

Dr. Locke D. Spencer

Associate Professor / Canada Research Chair (II) at Univ of Lethbridge

SPIE Involvement:

Author

Publications (18)

Proceedings Article | 20 October 2023 Presentation + Paper

Presentation + Paper

The science case for a far-infrared interferometer in the era of JWST and ALMA

David Leisawitz, Matteo Bonato, Duncan Farrah, T. Tupper Hyde, Aláine Lee, Joshua Bennett Lovell, Brenda Matthews, Lee Mundy, Conor Nixon, Petr Pokorny, Berke Ricketti, Giorgio Savini, Jeremy Scott, Irene Shivaei, Locke Spencer, Kate Su, C. Megan Urry, David Wilner

Proceedings Volume 12686, 1268609 (2023) https://doi.org/10.1117/12.2682235

KEYWORDS: James Webb Space Telescope, Astronomical interferometers, Galactic astronomy, Spatial resolution, Planets, Telescopes, Spectral resolution, Observatories, Stars, Interferometers

Read Abstract +

Proceedings Article | 31 August 2022 Poster + Paper

Poster + Paper

CCAT-prime: optical and cryogenic design of the 850 GHz module for Prime-Cam

Anthony Huber, Scott Chapman, Adrian Sinclair, Locke Spencer, Jason Austermann, Steve Choi, Jesslyn Devina, Patricio Gallardo, Doug Henke, Zachary Huber, Ben Keller, Yaqiong Li, Lawrence Lin, Mike Niemack, Kayla Rossi, Eve Vavagiakis, Jordan Wheeler

Proceedings Volume 12190, 121901D (2022) https://doi.org/10.1117/12.2630370

KEYWORDS: Sensors, Cryogenics, Optical design, Lenses, Attenuators, Monochromatic aberrations, Detector arrays, Silicon, Signal attenuation, Physics

Read Abstract +

Proceedings Article | 27 August 2022 Presentation + Paper

Presentation + Paper

Optimization of a cryogenic transition-edge sensor detector array for far-infrared astrophysics

Locke Spencer, Rashmi Sudiwala, Chris Benson, Jeremy Scott, Manimeldura Dinula De Silva, Tyrone Jones, James Cox, Ken Wood, Peter A. Ade

Proceedings Volume 12180, 121802S (2022) https://doi.org/10.1117/12.2630723

KEYWORDS: Sensors, Multiplexing, Signal to noise ratio, Modulation, Signal detection, Detector arrays, Field programmable gate arrays, Space operations, Time division multiplexing, Cryogenics

Read Abstract +

Proceedings Article | 12 July 2018 Paper

Paper

Composite material evaluation at cryogenic temperatures for applications in space-based far-infrared astronomical instrumentation

Locke Spencer, Ian Veenendaal, David Naylor, Brad Gom, Geoffrey R. Sitwell, Anthony Huber, Adam Christiansen, Chris Benson, Sudhakar Gunuganti, Martyn Jones, Richard Day, David Walker, Navid Zobeiry, Anoush Poursartip

Proceedings Volume 10706, 107063R (2018) https://doi.org/10.1117/12.2314211

KEYWORDS: Cryogenics, Aluminum, Laser metrology, Metrology, Laser systems engineering, Temperature metrology, Photonics, Fiber lasers, Composites, Astronomical instrumentation

Read Abstract +

Proceedings Article | 4 August 2016 Paper

Paper

The path to interferometry in space

S. Rinehart, G. Savini, W. Holland, O. Absil, D. Defrère, L. Spencer, D. Leisawitz, M. Rizzo, R. Juanola-Paramon, D. Mozurkewich

Proceedings Volume 9907, 99070S (2016) https://doi.org/10.1117/12.2231754

KEYWORDS: Telescopes, Far infrared, Interferometry, Space telescopes, Interferometers, Exoplanets, Planets, Spatial resolution, Stars, Astrophysics

Read Abstract +

Proceedings Article | 20 July 2016 Paper

Paper

A far-infrared spatial/spectral Fourier interferometry laboratory-based testbed instrument

Locke Spencer, David Naylor, Jeremy Scott, Vince Weiler, Roderick MacCrimmon, Geoffrey Sitwell, Peter Ade

Proceedings Volume 9914, 99141S (2016) https://doi.org/10.1117/12.2233924

KEYWORDS: Interferometry, Spatial resolution, Sensors, Mirrors, Optical alignment, Calibration, Modulation, Spectral resolution, Fourier transforms, Particle swarm optimization

Read Abstract +

Proceedings Article | 14 March 2015 Paper

Paper

Optical and quasi-optical analysis of system components for a far-infrared space interferometer

C. Bracken, C. O'Sullivan, A. Donohoe, A. Murphy, G. Savini, R. Juanola-Parramon, Nicola Baccichet, A. Guisseau, P. Ade, E. Pascale, L. Spencer, I. Walker, K. Dohlen, John Lightfoot, W. Holland, Martyn Jones, D. Walker, Alison McMillan

Proceedings Volume 9362, 93620N (2015) https://doi.org/10.1117/12.2076385

KEYWORDS: Mirrors, Telescopes, Space telescopes, Interferometers, Visibility, Beam propagation method, Wavefronts, Interferometry, Monochromatic aberrations, Spatial resolution

Read Abstract +

Proceedings Article | 28 August 2014 Paper

Paper

In-orbit performance of the Herschel/SPIRE imaging Fourier transform spectrometer: lessons learned

David Naylor, Jean-Paul Baluteau, George Bendo, Dominique Benielli, Trevor Fulton, Brad Gom, Matthew Griffin, Rosalind Hopwood, Peter Imhof, Tanya Lim, Nanyao Lu, Gibion Makiwa, Nicola Marchili, Glenn Orton, Andreas Papageorgiou, Chris Pearson, Edward Polehampton, Bernhard Schulz, Locke Spencer, Bruce Swinyard, Ivan Valtchanov, Matthijs H. van der Wiel, Ian Veenendaal, Ronin Wu

Proceedings Volume 9143, 91432D (2014) https://doi.org/10.1117/12.2054989

KEYWORDS: Calibration, Bolometers, Spectroscopy, Telescopes, Space telescopes, Fourier transforms, Sensors, Carbon monoxide, Astronomy, Space operations

Read Abstract +

Proceedings Article | 2 August 2014 Paper

Paper

Space-based far-infrared interferometry technology development through a laboratory-based spatial/spectral interferometry testbed instrument

Locke Spencer, David Naylor, Giorgio Savini, Peter Ade, Brad Gom

Proceedings Volume 9143, 91434G (2014) https://doi.org/10.1117/12.2055208

KEYWORDS: Interferometry, Interferometers, Spatial resolution, Modulation, Visibility, Astronomy, Space telescopes, Spectral resolution, Fourier transforms, Far infrared

Read Abstract +

Proceedings Article | 18 December 2012 Paper

Paper

A space-based Far Infrared Interferometer (FIRI) instrument simulator and test-bed implementation

Roser Juanola-Parramon, Peter Ade, William Grainger, Matt Griffin, Enzo Pascale, Giorgio Savini, Locke Spencer, Bruce Swinyard

Proceedings Volume 8550, 85501Y (2012) https://doi.org/10.1117/12.2014327

KEYWORDS: Interferometers, Fourier transforms, Far infrared, Spatial resolution, Interferometry, Device simulation, Sensors, Mirrors, Spectroscopy, Data processing

Read Abstract +

Proceedings Article | 6 August 2010 Paper

Paper

In-orbit performance of the Herschel/SPIRE imaging Fourier transform spectrometer

David Naylor, Jean-Paul Baluteau, Mike Barlow, Dominique Benielli, Marc Ferlet, Trevor Fulton, Matthew Griffin, Timothy Grundy, Peter Imhof, Scott Jones, Ken King, Sarah Leeks, Tanya Lim, Nanyao Lu, Gibion Makiwa, Edward Polehampton, Giorgio Savini, Sunil Sidher, Locke Spencer, Christian Surace, Bruce Swinyard, Roger Wesson

Proceedings Volume 7731, 773116 (2010) https://doi.org/10.1117/12.856299

KEYWORDS: Spectroscopy, Fourier transforms, Sensors, Spectral resolution, Telescopes, Calibration, Detector arrays, Mirrors, Modulation, Interferometers

Read Abstract +

Proceedings Article | 12 July 2008 Paper

Paper

Herschel-SPIRE: design, ground test results, and predicted performance

Matt Griffin, Bruce Swinyard, Laurent Vigroux, Alain Abergel, Peter Ade, Philippe André, Jean-Paul Baluteau, James Bock, Alberto Franceschini, Walter Gear, Jason Glenn, Maohai Huang, Douglas Griffin, Ken King, Emmanuel Lellouch, David Naylor, Seb Oliver, Göran Olofsson, Ismael Perez-Fournon, Mat Page, Michael Rowan-Robinson, Paolo Saraceno, Eric Sawyer, Gillian Wright, Annie Zavagno, Asier Abreu, George Bendo, Alan Dowell, Darren Dowell, Marc Ferlet, Trevor Fulton, Peter Hargrave, Glenn Laurent, Sarah Leeks, Tanya Lim, Nanyao Lu, Hien Nguyen, Alan Pearce, Edward Polehampton, Davide Rizzo, Bernhard Schulz, Sunil Sidher, Dave Smith, Locke Spencer, Ivan Valtchanov, Adam Woodcraft, Kevin Xu, Lijun Zhang

Proceedings Volume 7010, 701006 (2008) https://doi.org/10.1117/12.788312

KEYWORDS: Photometry, Fourier transforms, Sensors, Telescopes, Spectroscopy, Mirrors, Space telescopes, Bolometers, Detector arrays, Spectral resolution

Read Abstract +

Proceedings Article | 12 July 2008 Paper

Paper

Performance evaluation of the Herschel/SPIRE instrument flight model imaging Fourier transform spectrometer

Locke Spencer, David Naylor, Baoshe Zhang, Peter Davis-Imhof, Trevor Fulton, Jean-Paul Baluteau, Marc Ferlet, Tanya Lim, Edward Polehampton, Bruce Swinyard

Proceedings Volume 7010, 701008 (2008) https://doi.org/10.1117/12.788098

KEYWORDS: Sensors, Fourier transforms, Spectroscopy, Spectral resolution, Instrument modeling, Performance modeling, Vignetting, Beam splitters, Calibration, Detector arrays

Read Abstract +

Proceedings Article | 6 July 2006 Paper

Paper

Preliminary results from Herschel-SPIRE flight instrument testing

Tanya Lim, Bruce Swinyard, Matthew Griffin, Asier Aramburu, Jean-Paul Baluteau, James Bock, Marc Ferlet, Trevor Fulton, Douglas Griffin, Steven Guest, Peter Hargrave, Kenneth King, Sarah Leeks, David Naylor, Edward Polehampton, Davide Rizzo, Eric Sawyer, Bernhard Schulz, Sunil Sidher, Locke Spencer, David Smith, Hien Trong Nguyen, Ivan Valtchanov, Tim Waskett, Adam Woodcraft

Proceedings Volume 6265, 62650F (2006) https://doi.org/10.1117/12.672752

KEYWORDS: Spectroscopy, Photometry, Sensors, Black bodies, Bolometers, Telescopes, Calibration, Fourier transforms, Device simulation, Electronics

Read Abstract +

Proceedings Article | 15 June 2006 Paper

Paper

A comparison of the theoretical and measured performance of the Herschel/SPIRE imaging Fourier transform spectrometer

Locke Spencer, David Naylor, Bruce Swinyard

Proceedings Volume 6265, 62652Z (2006) https://doi.org/10.1117/12.671565

KEYWORDS: Spectroscopy, Fourier transforms, Sensors, Molecular lasers, Spectral resolution, Imaging spectroscopy, Instrument modeling, Signal to noise ratio, Spectroscopes, Aerospace engineering

Read Abstract +

Proceedings Article | 15 October 2004 Paper

Paper

Data processing pipeline for a time-sampled imaging Fourier transform spectrometer

David Naylor, Trevor Fulton, Peter Davis, Ian Chapman, Brad Gom, Locke Spencer, John Lindner, Nathan Nelson-Fitzpatrick, Margaret Tahic, Gary Davis

Proceedings Volume 5546, (2004) https://doi.org/10.1117/12.560096

KEYWORDS: Fourier transforms, Spectroscopy, Sensors, Imaging systems, Staring arrays, Error analysis, Data processing, Spectral resolution, Mirrors, Signal detection

Read Abstract +

Proceedings Article | 12 October 2004 Paper

Paper

A Fourier transform spectrometer for ground testing of the Herschel/SPIRE instrument

Locke Spencer, David Naylor, Bruce Swinyard, Asier Aramburu, Trevor Fulton, Tanya Lim, Samuel Ronayette, Ian Schofield

Proceedings Volume 5487, (2004) https://doi.org/10.1117/12.551784

KEYWORDS: Black bodies, Spectroscopy, Telescopes, Mirrors, Space telescopes, Device simulation, Fourier transforms, Sensors, Humidity, Spectral resolution

Read Abstract +

Proceedings Article | 12 October 2004 Paper

Paper

First results from Herschel-SPIRE performance tests

Tanya Lim, Bruce Swinyard, Asier Aramburu, James Bock, Marc Ferlet, Douglas Griffin, Matthew Griffin, Peter Hargrave, Kenneth King, Sarah Leeks, David Naylor, Samuel Ronayette, Eric Sawyer, Bernhard Schulz, Sunil Sidher, Locke Spencer, David Smith, Adam Woodcraft

Proceedings Volume 5487, (2004) https://doi.org/10.1117/12.551684

KEYWORDS: Sensors, Bolometers, Telescopes, Device simulation, Black bodies, Cryogenics, Optical testing, Mirrors, Photometry, Temperature metrology

Read Abstract +

Showing 5 of 18 publications

SIGN IN TO:

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Advertisement

Advertisement