Dr. David G. MacLachlan Profile

Dr. David G. MacLachlan

Research Associate at Heriot-Watt Univ

SPIE Involvement:

Author

Publications (19)

Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

Ultrafast laser inscription of integrated optics two-telescope beam combiners for K-band interferometry at the CHARA array

Jacopo Siliprandi, David MacLachlan, Calum Ross, Tarun Sharma, Lucas Labadie, Kalaga Madhav, Abani Nayak, Aline Dinkelaker, Martin Roth, Ettore Pedretti, Theo ten Brummelaar, Nicholas Scott, Vincent Coudé du Foresto, Robert Thomson, Aurélien Benoît

Proceedings Volume 12183, 1218314 (2022) https://doi.org/10.1117/12.2629899

KEYWORDS: Waveguides, K band, Directional couplers, Interferometry, Ultrafast lasers, Integrated optics, Beam splitters, Spatial light modulators

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SPIE Journal Paper | 23 December 2020

Diffraction-limited integral-field spectroscopy for extreme adaptive optics systems with the multicore fiber-fed integral-field unit

Sebastiaan Haffert, Robert Harris, Alessio Zanutta, Fraser Pike, Andrea Bianco, Edoardo Maria Alberto Redaelli, Aurélien Benoît, David MacLachlan, Calum Ross, Itandehui Gris-Sánchez, Mareike Trappen, Yilin Xu, Matthias Blaicher, Pascal Maier, Giulio Riva, Baptiste Sinquin, Caroline Kulcsár, Nazim Bharmal, Éric Gendron, Lazar Staykov, Timothy Morris, Santiago Barboza, Norbert Münch, Lisa Bardou, Léonard Prengère, Henri-François Raynaud, Philipp Hottinger, Theodoros Anagnos, James Osborn, Christian Koos, Robert Thomson, Timothy Birks, Ignas A. Snellen, Christoph Keller

JATIS, Vol. 6, Issue 04, 045007, (December 2020) https://doi.org/10.1117/12.10.1117/1.JATIS.6.4.045007

KEYWORDS: Spectrographs, Adaptive optics, Spectral resolution, Spectroscopy, Microlens, Waveguides, Single mode fibers, Point spread functions, Exoplanets, Sensors

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

Multi-core fibre-fed integral-field unit (MCIFU): overview and first-light

Sebastiaan Haffert, Robert Harris, Alessio Zanutta, Fraser Pike, Andrea Bianco, Edoardo Redaelli, Aurélien Benoît, David MacLachlan, Calum Ross, Itandehui Gris-Sánchez, Mareike Trappen, Yilin Xu, Matthias Blaicher, Pascal Maier, Giulio Riva, Baptiste Sinquin, Caroline Kulcsár, Nazim Ali Bharmal, Eric Gendron, Lazar Staykov, Tim Morris, Santiago Barboza, Norbert Muench, Lisa Bardour, Léonard Prengère, Henri-François Raynaud, Philipp Hottinger, Theodoros Anagnos, James Osborn, Christian Koos, Robert Thompson, Tim Birks, Ignas A. Snellen, Christoph Keller, Laird Close, Jared Males

Proceedings Volume 11448, 114484M (2020) https://doi.org/10.1117/12.2562719

KEYWORDS: Adaptive optics, Telescopes, Exoplanets, Atmospheric optics, Spectroscopes, Optical spheres, Spectral resolution, Astrophotonics, Spectrographs, Ultrafast lasers

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Proceedings Article | 13 December 2020 Poster + Presentation + Paper

Poster + Presentation + Paper

Multi-core fiber–fed integral field spectrograph (MCIFU) – III: an ultrafast laser inscribed photonic reformatter and mask

Fraser Pike, Aurélien Benoit, David MacLachlan, Calum Ross, Robert Harris, Sebastiaan Haffert, Itandehui Gris-Sánchez, Timothy Birks, Robert Thomson

Proceedings Volume 11451, 1145166 (2020) https://doi.org/10.1117/12.2559197

KEYWORDS: Spectrographs, Ultrafast lasers, Exoplanets, Waveguides, Opacity, Stars, Planets, Atmospheric sensing, Adaptive optics, Microlens array

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Modal noise mitigation in a photonic lantern fed near-IR spectrograph

Fraser Pike, Aurélien Benoit, David MacLachlan, Robert Harris, Itandehui Gris-Sánchez, David Lee, Timothy Birks, Robert Thomson

Proceedings Volume 11451, 114510E (2020) https://doi.org/10.1117/12.2561644

KEYWORDS: Spectrographs, Telescopes, Stars, Exoplanets, Velocity measurements, Planets, Calibration, Optical fibers, Multimode fibers, Photonic devices

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

K-band integrated optics beam combiners for CHARA fabricated by ultrafast laser inscription

Fraser Pike, Tarun Sharma, Aurélien Benoît, David MacLachlan, Aline Dinkelaker, Abani Nayak, Kalaga Madhav, Martin Roth, Lucas Labadie, Ettore Pedretti, Theo ten Brummelaar, Nicholas Scott, Vincent Coudé du Foresto, Robert Thomson

Proceedings Volume 11446, 114460K (2020) https://doi.org/10.1117/12.2561663

KEYWORDS: Integrated optics, K band, Ultrafast lasers, Astronomy, Astrophotonics, Waveguides, Information operations, Glasses, Optical filters, Atmospheric optics

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Multi-core fibre-fed integral field spectrograph (MCIFU) IV: the fiber link

Robert Harris, Fraser Pike, Mareike Trappen, Sebastiaan Haffert, Yilin Xu, Aurélien Benoît, Calum Ross, David MacLachlan, Santiago Barboza, Norbert Münch, Itandehui Gris-Sánchez, Matthias Blaicher, Pascal Maier, Christian Koos, Timothy Birks, Robert Thomson

Proceedings Volume 11451, 1145124 (2020) https://doi.org/10.1117/12.2562689

KEYWORDS: Spectrographs, Exoplanets, Adaptive optics, Spectroscopes, Single mode fibers, Optical filters, Telescopes, 3D printing, Microlens, Ultrafast lasers

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Proceedings Article | 10 July 2018 Presentation + Paper

Presentation + Paper

Optimizing astrophotonic spatial reformatters using simulated on-sky performance

Theodoros Anagnos, Robert Harris, Mark Corrigan, Andrew Reeves, Matthew Townson, David MacLachlan, Robert Thomson, Tim Morris, Christian Schwab, Andreas Quirrenbach

Proceedings Volume 10706, 107062H (2018) https://doi.org/10.1117/12.2312017

KEYWORDS: Optical fibers, Adaptive optics, Optical simulations, Spectrographs, Astrophotonics, Photonics, Device simulation, Waveguides

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Proceedings Article | 23 February 2018 Paper

Paper

Ultrafast laser-inscribed waveguides in IG2 chalcogenide glass for mid-infrared photonics applications

Helen Butcher, David MacLachlan, David Lee, Robert Thomson, Damien Weidmann

Proceedings Volume 10535, 1053514 (2018) https://doi.org/10.1117/12.2288333

KEYWORDS: Waveguides, Refractive index, Mid-IR, Wave propagation, Quantum cascade lasers, Chalcogenide glass, Ultrafast lasers, Ultrafast phenomena, Laser applications

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Proceedings Article | 22 February 2018 Paper

Paper

Mid-infrared volume diffraction gratings in IG2 chalcogenide glass: fabrication, characterization, and theoretical verification

Helen Butcher, David MacLachlan, David Lee, Richard Brownsword, Robert Thomson, Damien Weidmann

Proceedings Volume 10528, 105280R (2018) https://doi.org/10.1117/12.2288357

KEYWORDS: Diffraction gratings, Diffraction, Data modeling, Refractive index, Mid-IR, Chalcogenide glass, Fourier transforms, Modeling, Spectroscopic atmospheric monitoring techniques

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Proceedings Article | 17 February 2017 Paper

Paper

Towards optical quality micro-optic fabrication by direct laser writing and chemical etching

Calum Ross, David MacLachlan, Debaditya Choudhury, Robert Thomson

Proceedings Volume 10094, 100940V (2017) https://doi.org/10.1117/12.2251986

KEYWORDS: Ultrafast lasers, Micromachining, Microlens, Femtosecond phenomena, Freeform optics, Polishing, Micro optics, Wet etching, Polarization, Etching, Surface finishing, Surface roughness, Silica, Glasses

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Proceedings Article | 4 August 2016 Paper

Paper

Wavefront sensing using a photonic lantern

Mark Corrigan, Robert Harris, Robert Thomson, David MacLachlan, Jeremy Allington-Smith, Richard Myers, Tim Morris

Proceedings Volume 9909, 990969 (2016) https://doi.org/10.1117/12.2230568

KEYWORDS: Wavefront sensors, Adaptive optics, Photodetectors, Wavefronts, Point spread functions, Sensors, Waveguides, Wave propagation, Astronomy, Refractive index

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Proceedings Article | 22 July 2016 Paper

Paper

Performance estimates for spectrographs using photonic reformatters

Robert Harris, Lucas Labadie, Ulrike Lemke, David MacLachlan, Robert Thomson, Sabine Reffert, Andreas Quirrenbach

Proceedings Volume 9912, 99125Q (2016) https://doi.org/10.1117/12.2232731

KEYWORDS: Spectrographs, Stars, Sensors, Spectroscopes, Signal to noise ratio, Telescopes, Spectral resolution, Infrared telescopes, Space telescopes, Electrons

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Proceedings Article | 22 July 2016 Paper

Paper

Modal noise characterisation of a hybrid reformatter

Izabela Spaleniak, David MacLachlan, Itandehui Gris-Sánchez, Debaditya Choudhury, Robert Harris, Alexander Arriola, Jeremy Allington-Smith, Timothy Birks, Robert Thomson

Proceedings Volume 9912, 991228 (2016) https://doi.org/10.1117/12.2232708

KEYWORDS: Spectrographs, Waveguides, Telescopes, Photonics, Astronomical imaging, Integrated optics, Point spread functions, Astronomy, Speckle pattern, Spectral resolution

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Proceedings Article | 22 July 2016 Paper

Paper

Mid-infrared transmission gratings in chalcogenide glass manufactured using ultrafast laser inscription

David Lee, David MacLachlan, Helen Butcher, Richard Brownsword, Damien Weidmann, Colin Cunningham, H. Schnetler, Robert Thomson

Proceedings Volume 9912, 99122X (2016) https://doi.org/10.1117/12.2232531

KEYWORDS: Chalcogenide glass, Manufacturing, Data modeling, Diffraction, Diffraction gratings, Ultrafast lasers, Mid-IR, Fourier transforms, Prototyping, Collimation

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Proceedings Article | 22 July 2016 Paper

Paper

Development of an efficient photonic device for the reformatting of celestial light

D. MacLachlan, R. Harris, I. Gris-Sánchez, D. Choudhury, T. Morris, E. Gendron, A. Basden, I. Spaleniak, A. Arriola, T. Birks, J. Allington-Smith, R. Thomson

Proceedings Volume 9912, 991227 (2016) https://doi.org/10.1117/12.2232599

KEYWORDS: Photonic devices, Adaptive optics, Spectrographs, Waveguides, Telescopes, Point spread functions, Stars, Cameras, Planets, Astronomy

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Proceedings Article | 19 August 2014 Paper

Paper

Developing ultrafast laser inscribed volume gratings

David MacLachlan, Debaditya Choudhury, Alexander Arriola, Colin Cunningham, Robert Thomson, Andrew Kirkham, David Lee

Proceedings Volume 9151, 91511H (2014) https://doi.org/10.1117/12.2055882

KEYWORDS: Diffraction gratings, Mid-IR, Diffraction, Manufacturing, Antireflective coatings, Astronomy, Ultrafast lasers, Transmittance, Refractive index, Spectrographs

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Proceedings Article | 18 July 2014 Paper

Paper

Development of integrated photonic-dicers for reformatting the point-spread-function of a telescope

David MacLachlan, Robert Harris, Debaditya Choudhury, Alexander Arriola, Graeme Brown, Jeremy Allington-Smith, Robert Thomson

Proceedings Volume 9151, 91511W (2014) https://doi.org/10.1117/12.2055904

KEYWORDS: Waveguides, Telescopes, Point spread functions, Spectrographs, Diffraction, Ultrafast lasers, Adaptive optics, Photonics, Astronomy, Large telescopes

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Proceedings Article | 8 July 2014 Paper

Paper

A comparison of concepts for a photonic spectrograph

R. Harris, J. Allington-Smith, David MacLachlan, Robert Thomson

Proceedings Volume 9147, 91474C (2014) https://doi.org/10.1117/12.2055581

KEYWORDS: Spectrographs, Spectral resolution, Sensors, Telescopes, Astronomy, Astronomical telescopes, Manufacturing, Point spread functions, Space telescopes, Telecommunications

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Showing 5 of 19 publications

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