Dr. Adam Densmore Profile

Dr. Adam Densmore

Engineering and Project Management at NRC-Herzberg Astronomy & Astrophysics

SPIE Involvement:

Author

Publications (34)

Proceedings Article | 30 August 2022 Poster + Paper

Managing NFIRAOS optical enclosure environment conditions from a high level software system

Jonathan Stocks, Glen Herriot, David Andersen, Malcolm Smith, Adam Densmore, Jennifer Dunn

Proceedings Volume 12185, 1218550 (2022) https://doi.org/10.1117/12.2630395

KEYWORDS: Control systems, Environmental monitoring, Sensors, Environmental sensing, Telescopes, Environmental management, Interfaces, Thirty Meter Telescope, Adaptive optics

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Proceedings Article | 29 August 2022 Poster + Paper

Design and testing of an on-sky astrophotonic telescope platform for on-chip instrumentation

Erin M. Tonita, Volodymyr Artyshchuk, John Weber, Siegfried Janz, Adam Densmore, Suresh Sivanandam, Ernst de Mooij, Jens H. Schmid, Pavel Cheben, DanXia Xu, Karin Hinzer, Ross Cheriton

Proceedings Volume 12188, 121882Z (2022) https://doi.org/10.1117/12.2622465

KEYWORDS: Telescopes, Astrophotonics, Absorption, Domes, Optical instrument design, Spectroscopes, Resonators, Remote sensing, Astronomy, Carbon dioxide

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Proceedings Article | 29 August 2022 Poster + Paper

On-sky demonstration of astrophotonic fiber Fabry-Pérot correlation spectroscopy

Ross Cheriton, Erin Tonita, Volodymyr Artyshchuk, Adam Densmore, Suresh Sivanandam, Ernst de Mooij, Pavel Cheben, Dan-Xia Xu, Jens H. Schmid, Karin Hinzer, Siegfried Janz

Proceedings Volume 12188, 121885F (2022) https://doi.org/10.1117/12.2619244

KEYWORDS: Carbon dioxide, Absorption, Modulation, Optical filters, Tunable filters, Telescopes, Absorption filters, Exoplanets, Astrophotonics, Sun

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Proceedings Article | 29 August 2022 Presentation + Paper

Final integration of the Gemini High-Resolution Optical SpecTrograph (GHOST) spectrograph

John Pazder, Alan McConnachie, Michael Ireland, Andre Anthony, John Bassett, Greg Burley, Edward Chapin, Vladimir Churilov, Adam Densmore, Jennifer Dunn, Tony Farrell, David Henderson, Brian Hoff, Jordan Lothrop, Scott Macdonald, Steve Margheim, Vladimir Reshetov, Ivan Wevers, Lewis Waller, Peter Young, Ross Zhelem

Proceedings Volume 12184, 121841D (2022) https://doi.org/10.1117/12.2630715

KEYWORDS: Spectrographs, Gemini Observatory, Telescopes, Beam splitters, Spectral resolution

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Proceedings Article | 29 August 2022 Presentation + Paper

Astrophotonic solutions for spectral cross-correlation techniques

Suresh Sivanandam, Ross Cheriton, Polina Zavyalova, Peter Herman, Emily Deibert, Erin Tonita, Volodymyr Artyshchuk, Ernst de Mooij, Siegfried Janz, Adam Densmore

Proceedings Volume 12184, 121841K (2022) https://doi.org/10.1117/12.2629996

KEYWORDS: Modulation, Spectrographs, Fiber Bragg gratings, Spectroscopes, Silicon photonics, Astrophotonics, Absorption, Sensors, Resonators, Astrophysics, Optical telescopes

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Proceedings Article | 29 August 2022 Poster + Paper

Gemini High-Resolution Optical Spectrograph (GHOST) instrument shipping reflections

Scott MacDonald, Andre Anthony, Greg Burley, Ed Chapin, Adam Densmore, Jennifer Dunn, Sam Lambert, Jordan Lothrop, John Pazder

Proceedings Volume 12184, 121844S (2022) https://doi.org/10.1117/12.2629765

KEYWORDS: Gemini Observatory, Spectrographs, Humidity, Foam, Astronomy, Integrated optics, Electronics, Vibration isolation, Temperature sensors

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Proceedings Article | 5 March 2022 Presentation

Fiber Fabry-Pérot filter correlation spectroscopy for real-time radial velocity determination and astrophotonic gas sensing

Ross Cheriton, Erin Tonita, Volodymyr Artyshchuk, Adam Densmore, Suresh Sivanandam, Ernst de Mooij, Dan-Xia Xu, Jens Schmid, Pavel Cheben, Siegfried Janz

Proceedings Volume PC12008, PC1200809 (2022) https://doi.org/10.1117/12.2610397

KEYWORDS: Optical filters, Spectroscopy, Image filtering, Absorption, Exoplanets, Atmospheric sensing, Carbon dioxide, Absorption filters, Venus, Tunable filters

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Proceedings Article | 13 December 2020 Presentation

Integrated photonic correlation spectroscopy for faint exoplanet biosignature detection

Ross Cheriton, Adam Densmore, Suresh Sivanandam, Ernst de Mooij, Daniele Melati, Mohsen Kamandar Dezfouli, Jens Schmid, Jean Lapointe, Shurui Wang, Rubin Ma, Dan-Xia Xu, Luc Simard, Siegfried Janz

Proceedings Volume 11446, 114461T (2020) https://doi.org/10.1117/12.2560811

KEYWORDS: Exoplanets, Spectroscopy, Integrated photonics, Absorption, Resonators, Molecules, Earth's atmosphere, Space telescopes, Carbon dioxide, Spectroscopic atmospheric monitoring techniques

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Proceedings Article | 13 December 2020 Poster + Presentation + Paper

CO2-based refrigeration system for the NFIRAOS optics enclosure

Adam Densmore, Glen Herriot, Joeleff Fitzsimmons, Peter W. Byrnes, Ian Welle, Jarod Holma, Megan Tiedje, Jay Burbee, Calvin Winter

Proceedings Volume 11447, 1144739 (2020) https://doi.org/10.1117/12.2563141

KEYWORDS: Carbon dioxide, Cooling systems, Adaptive optics, Prototyping, Light emitting diodes, Climate change, Observatories, Foam, Aluminum, Skin

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Proceedings Article | 13 December 2020 Poster + Paper

Integration of the Gemini High-Resolution Optical SpecTrograph (GHOST) bench spectrograph

John Pazder, Alan McConnachie, Michael Ireland, Andre Anthony, John Bassett, Greg Burley, Edward Chapin, Vladimir Churilov, Adam Densmore, Jennifer Dunn, Tony Farrell, David Henderson, Brian Hoff, Sam Lambert, Jordan Lothrop, Scott MacDonald, Steve Margheim, Vladimir Reshetov, Ivan Wevers, Lewis Waller, Peter Young, Ross Zhelem

Proceedings Volume 11447, 1144743 (2020) https://doi.org/10.1117/12.2561985

KEYWORDS: Spectrographs, Gemini Observatory, Integrated optics, Astrophysics, Astronomy, Observatories, Astronomical imaging, Astronomical telescopes, Telescopes

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Proceedings Article | 13 December 2020 Poster + Paper

The Herzberg Astronomy and Astrophysics Research Centre's vibration measurement capabilities with applications to astronomical instrumentation

Peter W. Byrnes, Adam Densmore, Joeleff Fitzsimmons, Glen Herriot

Proceedings Volume 11445, 114456U (2020) https://doi.org/10.1117/12.2562758

KEYWORDS: Vibrometry, Astronomy, Astrophysics, Astronomical instrumentation, Radio telescopes, Observatories, Deformable mirrors, Gemini Observatory, Adaptive optics

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Proceedings Article | 13 December 2020 Poster + Paper

Gemini High-Resolution Optical SpecTrograph (GHOST) outer enclosure design and construction

J. Lothrop, B. Hoff, S. MacDonald, J. Dunn, A. Densmore, J. Pazder, E. Chapin, G. Burley, A. Anthony, S. Lambert, V. Reshetov

Proceedings Volume 11447, 114473R (2020) https://doi.org/10.1117/12.2561629

KEYWORDS: Gemini Observatory, Spectrographs, Astronomical imaging, Integrated optics, Astronomical telescopes, Telescopes, Astronomy, Observatories, Bridges

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Proceedings Article | 13 December 2020 Poster + Paper

Fast modulation and dithering for the NFIRAOS pyramid wavefront sensor

Edward Chapin, David Andersen, Owen Brown, Jeffrey Crane, Adam Densmore, Jennifer Dunn, Tim Hardy, Glen Herriot, Dan Kerley, Olivier Lardiere, Jean-Pierre Véran

Proceedings Volume 11451, 114514V (2020) https://doi.org/10.1117/12.2560418

KEYWORDS: Wavefront sensors, Modulation, Thirty Meter Telescope, Mirrors, Sensors, Adaptive optics, Stars, Optical testing, Phase shift keying, Laser guide stars

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Proceedings Article | 12 September 2019 Presentation

Ultra-compact remote CO2 detection with silicon waveguide ring resonators (Conference Presentation)

Ross Cheriton, Suresh Sivanandam, Adam Densmore, Daniele Melati, Mohsen Kamandar Dezfouli, Danxia Xu, Jens Schmidt, Jean Lapointe, Luc Simard, Pavel Cheben, Siegfried Janz

Proceedings Volume 11129, 111290K (2019) https://doi.org/10.1117/12.2529367

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Proceedings Article | 17 July 2018 Paper

NFIRAOS adaptive optics for the Thirty Meter Telescope

Jeffrey Crane, Glen Herriot, David Andersen, Jenny Atwood, Peter Byrnes, Adam Densmore, Jennifer Dunn, Joeleff Fitzsimmons, Tim Hardy, Brian Hoff, Kate Jackson, Dan Kerley, Olivier Lardière, Malcolm Smith, Jonathan Stocks, Jean-Pierre Véran, Corinne Boyer, Lianqi Wang, Gelys Trancho, Melissa Trubey

Proceedings Volume 10703, 107033V (2018) https://doi.org/10.1117/12.2314341

KEYWORDS: Mirrors, Thirty Meter Telescope, Adaptive optics, Beam splitters, Telescopes, Stars, Calibration, Interfaces, Wavefront sensors, Sensors

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Proceedings Article | 27 July 2016 Paper

NFIRAOS in 2015: engineering for future integration of complex subsystems

Jenny Atwood, David Andersen, Peter Byrnes, Adam Densmore, Joeleff Fitzsimmons, Glen Herriot, Alexis Hill

Proceedings Volume 9909, 990934 (2016) https://doi.org/10.1117/12.2231813

KEYWORDS: Adaptive optics, Interfaces, Optical alignment, Thirty Meter Telescope, Mirrors, Calibration, Wavefront sensors, Error analysis, Tolerancing, Image resolution

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Proceedings Article | 24 October 2012 Paper

Temperature-independent silicon waveguides comprising bridged subwavelength gratings

M. Ibrahim, A. Aleali, J. Schmid, P. Cheben, J. Lapointe, S. Janz, P. Bock, A. Densmore, B. Lamontagne, R. Ma, D.-X. Xu, W. Ye

Proceedings Volume 8412, 84120Z (2012) https://doi.org/10.1117/12.2001480

KEYWORDS: Waveguides, Silicon, Bridges, Wave propagation, Polarization, Thermal optics, Refractive index, Photonics, Silicon photonics, Temperature metrology

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Proceedings Article | 8 September 2011 Paper

Athermal silicon subwavelength grating waveguides

M. Ibrahim, J. Schmid, P. Cheben, J. Lapointe, S. Janz, P. Bock, A. Densmore, B. Lamontagne, R. Ma, D.-X. Xu, W. Ye

Proceedings Volume 8007, 80071L (2011) https://doi.org/10.1117/12.905685

KEYWORDS: Waveguides, Silicon, Polarization, Thermal optics, Polymers, Polymer multimode waveguides, Numerical simulations, Refractive index, Diffraction gratings, Silicon photonics

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Proceedings Article | 8 February 2011 Paper

Silicon photonic wire evanescent field sensors: sensor arrays and instrumentation

S. Janz, A. Densmore, D.-X. Xu, P. Cheben, R. Ma, J. Schmid, A. Delâge, M. Vachon, J. Lapointe, N. Sabourin, W. Sinclair, Y. Li, T. Mischki, G. Lopinski, R. MacKenzie, Q. Liu, E. Post, B. Lamontagne, R. Halir, I. Molina-Fernandez

Proceedings Volume 7888, 788805 (2011) https://doi.org/10.1117/12.875471

KEYWORDS: Sensors, Waveguides, Molecules, Silicon, Silicon photonics, Resonators, Microfluidics, Molecular photonics, Refractive index, Waveguide modes

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Proceedings Article | 19 January 2011 Paper

Subwavelength and diffractive waveguide structures and their applications in nanophotonics and sensing

P. Cheben, P. Bock, J. Schmid, J. Lapointe, S. Janz, D.-X. Xu, R. Ma, A. Densmore, A. Delâge, B. Lamontagne, T. Hall, R. Halir, I. Molina-Fernández, J.-M. Fédéli

Proceedings Volume 7941, 794111 (2011) https://doi.org/10.1117/12.875431

KEYWORDS: Waveguides, Silicon, Refractive index, Polarization, Fiber couplers, Cladding, Light wave propagation, Nanostructures, Photonics, Planar waveguides

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Proceedings Article | 17 January 2011 Paper

Engineering light at the sub-wavelength scale using silicon photonics

S. Janz, P. Cheben, J. Schmid, P. Bock, R. Halir, D.-X. Xu, A. Densmore, R. Ma, I. Molina-Fernandez, A. Delâge, M. Vachon, J. Lapointe, W. Sinclair, E. Post, B. Lamontagne

Proceedings Volume 7943, 79430G (2011) https://doi.org/10.1117/12.875488

KEYWORDS: Waveguides, Sensors, Silicon, Cladding, Silicon photonics, Etching, Waveguide sensors, Refractive index, Electron beam lithography, Waveguide modes

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Proceedings Article | 17 February 2010 Paper

Applications of subwavelength grating structures in silicon-on-insulator waveguides

Jens Schmid, Przemek Bock, Pavel Cheben, William Sinclair, Jaime García, Siegfried Janz, Jean Lapointe, Geoffrey Aers, Daniel Poitras, Yunhui Li, Gregory Lopinski, André Delâge, Adam Densmore, Boris Lamontagne, Rubin Ma, Dan-Xia Xu

Proceedings Volume 7606, 76060F (2010) https://doi.org/10.1117/12.841022

KEYWORDS: Waveguides, Silicon, Photonics, Refractive index, Sensors, Dispersion, Reflectivity, Dielectrics, Silicon photonics, Fiber couplers

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Proceedings Article | 17 February 2010 Paper

Arrays of SOI photonic wire biosensors for label-free molecular detection

Adam Densmore, Dan-Xia Xu, Martin Vachon, Siegfried Janz, Rubin Ma, Yunhui Li, Gregory Lopinski, Christian Luebbert, Qing Liu, Jens Schmid, André Delâge, Pavel Cheben

Proceedings Volume 7606, 76060C (2010) https://doi.org/10.1117/12.842027

KEYWORDS: Sensors, Waveguides, Microfluidics, Biosensors, Mach-Zehnder interferometers, Molecular photonics, Silicon photonics, Infrared sensors, Waveguide modes, Phase shifts

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Proceedings Article | 17 February 2010 Paper

Power and speed analysis of miniaturized SOI y-branch Mach-Zehnder thermo-optic switches

K. P. Yap, T. Smy, J. Schmid, P. Waldron, A. Densmore, B. Syrett, S. Janz

Proceedings Volume 7606, 76060P (2010) https://doi.org/10.1117/12.842737

KEYWORDS: Waveguides, Switches, Cladding, Thermal optics, Silicon, Channel waveguides, Oxides, Switching, Waveguide modes, Silica

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Proceedings Article | 10 February 2009 Paper

Optoelectronic integration of silicon photonic wire biosensors

A. Densmore, S. Janz, D.-X. Xu, M. Vachon, P. Waldron, J. Schmid, J. Lapointe, T. Mischki, G. Lopinski, A. Delâge, P. Cheben, R. Ma

Proceedings Volume 7219, 72190M (2009) https://doi.org/10.1117/12.811602

KEYWORDS: Waveguides, Sensors, Molecules, Silicon photonics, Silicon, Resonators, Optical fibers, Biosensors, Mach-Zehnder interferometers, Cladding

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Proceedings Article | 13 February 2008 Paper

Spotter-compatible SOI waveguide devices for biomolecular sensing

Adam Densmore, Dan-Xia Xu, Philip Waldron, Siegfried Janz, Jean Lapointe, Trevor Mischki, Gregory Lopinski, André Delâge, Pavel Cheben

Proceedings Volume 6898, 68981B (2008) https://doi.org/10.1117/12.763699

KEYWORDS: Waveguides, Sensors, Resonators, Mach-Zehnder interferometers, Silicon, Silicon photonics, Molecules, Semiconducting wafers, Biosensing, Waveguide sensors

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Proceedings Article | 26 October 2007 Paper

Subwavelength grating structures in planar waveguide facets for modified reflectivity

Jens Schmid, Pavel Cheben, Siegfried Janz, Jean Lapointe, Edith Post, André Delâge, Adam Densmore, Boris Lamontagne, Philip Waldron, Dan-Xia Xu

Proceedings Volume 6796, 67963E (2007) https://doi.org/10.1117/12.779053

KEYWORDS: Reflectivity, Waveguides, Finite-difference time-domain method, Silicon, Polarization, Modulation, Antireflective coatings, GRIN lenses, Refractive index, Planar waveguides

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Proceedings Article | 26 October 2007 Paper

Label-free biosensing using silicon planar waveguide technology

Adam Densmore, Dan-Xia Xu, Philip Waldron, Siegfried Janz, André Delâge, G. Lopinski, T. Mischki, Pavel Cheben, Edith Post, Jean Lapointe, Jens Schmid

Proceedings Volume 6796, 67962X (2007) https://doi.org/10.1117/12.778936

KEYWORDS: Waveguides, Sensors, Silicon, Silicon photonics, Planar waveguides, Refractive index, Mach-Zehnder interferometers, Cladding, Waveguide modes, Photonics

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Proceedings Article | 9 February 2007 Paper

Thin silicon waveguides for biological and chemical sensing

Adam Densmore, Dan-Xia Xu, Philip Waldron, Siegfried Janz, André Delâge, Pavel Cheben, Jean Lapointe

Proceedings Volume 6477, 647718 (2007) https://doi.org/10.1117/12.700916

KEYWORDS: Waveguides, Sensors, Silicon, Polarization, Resonators, Cladding, Biological and chemical sensing, Refractive index, Brain-machine interfaces, Waveguide modes

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Proceedings Article | 20 December 2004 Paper

Two-step lateral taper spot-size converter for efficient fiber coupling to InP-based photonic integrated circuits

Fang Wu, Valery Tolstikhin, Adam Densmore, Serge Grabtchak

Proceedings Volume 5577, (2004) https://doi.org/10.1117/12.567349

KEYWORDS: Waveguides, Tolerancing, Fiber couplers, Photonic integrated circuits, Semiconductors, Waveguide modes, Single mode fibers, Cladding, Optical alignment, Photodetectors

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Proceedings Article | 20 December 2004 Paper

Single-mode vertically integrated waveguide photodetectors for WDM data receiver applications

Adam Densmore, Kirill Pimenov, Valery Tolstikhin

Proceedings Volume 5577, (2004) https://doi.org/10.1117/12.567373

KEYWORDS: Waveguides, Wavelet packet decomposition, Photodetectors, Demultiplexers, Wavelength division multiplexing, Capacitance, Receivers, Polarization, Heterojunctions, Photonic integrated circuits

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Proceedings Article | 16 November 2004 Paper

InP-based photonic integrated circuits for optical performance surveillance, signal conditioning, and bandwidth management in DWDM transmission systems

Valery Tolstikhin, Fang Wu, Yury Logvin, Adam Densmore, Kirill Pimenov, Serge Grabtchak

Proceedings Volume 5579, (2004) https://doi.org/10.1117/12.567339

KEYWORDS: Waveguides, Polarization, Photonic integrated circuits, Dense wavelength division multiplexing, Etching, Optical components, Signal attenuation, Active optics, Wavelet packet decomposition, Integrated optics

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Proceedings Article | 15 May 2001 Paper

Arrays of wavelength monitoring photodetectors for WDM and fiber sensing applications

Adam Densmore, Paul Jessop

Proceedings Volume 4277, (2001) https://doi.org/10.1117/12.426831

KEYWORDS: Sensors, Waveguides, Fiber Bragg gratings, Absorption, Photodetectors, Demultiplexers, Wavelength division multiplexing, Quantum wells, Signal detection, Chemical elements

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Proceedings Article | 4 December 1998 Paper

Wavelength selective detection and wavelength monitoring using optical waveguide photodetectors

Paul Jessop, Adam Densmore

Proceedings Volume 3491, (1998) https://doi.org/10.1117/12.328719

KEYWORDS: Sensors, Waveguides, Photodetectors, Fiber optics sensors, Quantum wells, Fiber lasers, Absorption, Fiber Bragg gratings, Fiber optics, Gallium arsenide

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Showing 5 of 34 publications

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