Skip to main content

Research Repository

Advanced Search

Efficient photonic reformatting of celestial light for diffraction-limited spectroscopy (2016)
Journal Article
MacLachlan, D., Harris, R., Gris-Sánchez, I., Morris, T., Choudhury, D., Gendron, E., …Thomson, R. (2017). Efficient photonic reformatting of celestial light for diffraction-limited spectroscopy. Monthly Notices of the Royal Astronomical Society, 464(4), 4950-4957. https://doi.org/10.1093/mnras/stw2558

The spectral resolution of a dispersive astronomical spectrograph is limited by the trade-off between throughput and the width of the entrance slit. Photonic guided wave transitions have been proposed as a route to bypass this trade-off, by enabling... Read More about Efficient photonic reformatting of celestial light for diffraction-limited spectroscopy.

Applications of Integrated Photonic Spectrographs in astronomy (2013)
Journal Article
Harris, R., & Allington-Smith, J. (2013). Applications of Integrated Photonic Spectrographs in astronomy. Monthly Notices of the Royal Astronomical Society, 428(4), 3139-3150. https://doi.org/10.1093/mnras/sts265

One of the problems of producing instruments for extremely large telescopes (ELTs) is that their size (and hence cost) scales rapidly with telescope aperture. To try to break this relation alternative new technologies have been proposed, such as the... Read More about Applications of Integrated Photonic Spectrographs in astronomy.

Modelling complex phenomena in optical fibres (2012)
Conference Proceeding
Allington-Smith, J., Murray, G., & Lemke, U. (2012). Modelling complex phenomena in optical fibres. In I. McLean, S. Ramsay, & H. Takami (Eds.), . https://doi.org/10.1117/12.926010

We present a new model for predicting the performance of fibre systems in the multimode limit. This is based on ray-­‐tracing but includes a semi-­‐empirical description of Focal Ratio Degradation (FRD). We show how FRD is simulated by the model. Wit... Read More about Modelling complex phenomena in optical fibres.

Optical design of optical switches for diverse field spectroscopy (2010)
Conference Proceeding
Content, R., Murray, G. J., & Allington-Smith, J. R. (2010). Optical design of optical switches for diverse field spectroscopy. In E. AtadEttedgui, & D. Lemke (Eds.), . https://doi.org/10.1117/12.857939

Diverse field spectroscopy is a new concept in which any part of a field can be optically captured and send to the entrance slit of a spectrograph. It is more general than integral field spectroscopy, multi-object spectroscopy and even multi-integral... Read More about Optical design of optical switches for diverse field spectroscopy.

Characterising modal noise in fibre-coupled spectrographs for astronomy (2010)
Conference Proceeding
Lemke, U., Corbett, J., Allington-Smith, J., & Murray, G. (2010). Characterising modal noise in fibre-coupled spectrographs for astronomy. In E. AtadEttedgui, & D. Lemke (Eds.), Conference on Modern Technologies in Space- and Ground-Based Telescopes and Instrumentation, San Diego, CA, JUN 27-JUL 02, 2010. https://doi.org/10.1117/12.856388

Fibre modal noise occurs in high spectral resolution, high signal-to-noise applications. It imposes fundamental limits upon the photometric accuracy of state-of-the-art fibre-spectrograph systems. In order to maximize the performance of current and f... Read More about Characterising modal noise in fibre-coupled spectrographs for astronomy.

Strategies for spectroscopy on extremely large telescopes - III. Remapping switched fibre systems (2009)
Journal Article
Poppett, C., Allington-Smith, J., & Murray, G. (2009). Strategies for spectroscopy on extremely large telescopes - III. Remapping switched fibre systems. Monthly Notices of the Royal Astronomical Society, 399(1), 443-452. https://doi.org/10.1111/j.1365-2966.2009.15296.x

We explore the use of remapping techniques to improve the efficiency of highly multiplexed fibre systems for astronomical spectroscopy. This is particularly important for the implementation of diverse field spectroscopy (DFS) using highly multiplexed... Read More about Strategies for spectroscopy on extremely large telescopes - III. Remapping switched fibre systems.

Strategies for spectroscopy on Extremely Large Telescopes - II. Diverse-field spectroscopy (2009)
Journal Article
Murray, G., & Allington-Smith, J. (2009). Strategies for spectroscopy on Extremely Large Telescopes - II. Diverse-field spectroscopy. Monthly Notices of the Royal Astronomical Society, 399(1), 209-218. https://doi.org/10.1111/j.1365-2966.2009.15170.x

The fields of view of Extremely Large Telescopes will contain vast numbers of spatial sampling elements (spaxels) as their adaptive optics systems approach the diffraction limit over wide fields. Since this will exceed the detection capabilities of a... Read More about Strategies for spectroscopy on Extremely Large Telescopes - II. Diverse-field spectroscopy.

New techniques for integral field spectroscopy - I. Design, construction and testing of the GNIRS IFU (2006)
Journal Article
Allington-Smith, J., Content, R., Dubbeldam, C., Robertson, D., & Preuss, W. (2006). New techniques for integral field spectroscopy - I. Design, construction and testing of the GNIRS IFU. Monthly Notices of the Royal Astronomical Society, 371(1), 380-394. https://doi.org/10.1111/j.1365-2966.2006.10666.x

We describe the integral field spectroscopy (IFS) capability of the Gemini Near-infrared Spectrograph (GNIRS) installed on the Gemini-South telescope. This makes use of the Advanced Image Slicer (AIS) optical concept of Content. Image slicing is, in... Read More about New techniques for integral field spectroscopy - I. Design, construction and testing of the GNIRS IFU.

Cryogenic tests of volume-phase holographic gratings: results at 100 K. (2006)
Journal Article
Tamura, N., Murray, G., Luke, P., Blackburn, C., Robertson, D., Dipper, N., …Allington-Smith, J. (2006). Cryogenic tests of volume-phase holographic gratings: results at 100 K. Applied optics, 45(23), 5923-5928. https://doi.org/10.1364/ao.45.005923

We present results from cryogenic tests of volume-phase holographic (VPH) gratings at ∼100  K∼100  K. The aims of these tests are to see whether the diffraction efficiency as a function of wavelength is significantly different at a low temperature fr... Read More about Cryogenic tests of volume-phase holographic gratings: results at 100 K..

Cryogenic tests of volume-phase holographic gratings. (2004)
Conference Proceeding
Tamura, N., Murray, G. J., Luke, P., Blackburn, C., Robertson, D. J., Dipper, N. A., …Allington-Smith, J. R. (2004). Cryogenic tests of volume-phase holographic gratings. In A. F. Moorwood, & M. Iye (Eds.), Ground-based Instrumentation for Astronomy (634-642). https://doi.org/10.1117/12.550797

We present results from cryogenic tests of a Volume-Phase Holographic (VPH) grating at 200 K measured at near-infrared wavelengths. The aims of these tests were to see whether the diffraction efficiency and angular dispersion of a VPH grating are sig... Read More about Cryogenic tests of volume-phase holographic gratings..

Cryogenic Tests of Volume-Phase Holographic Gratings: I. Results at 200 K. (2003)
Journal Article
Tamura, N., Murray, G., Luke, P., Blackburn, C., Robertson, D., Dipper, N., …Allington-Smith, J. (2003). Cryogenic Tests of Volume-Phase Holographic Gratings: I. Results at 200 K. Experimental Astronomy, 15(1), 1-12. https://doi.org/10.1023/b%3Aexpa.0000028163.98901.d9

We present results from cryogenic tests of a Volume-Phase Holographic(VPH) grating at 200 K measured at near-infrared wavelengths. The aims of these tests were to see whether the diffraction efficiency and angular dispersion of a VPH grating are sign... Read More about Cryogenic Tests of Volume-Phase Holographic Gratings: I. Results at 200 K..

Multiple Integral Field Spectroscopy (2002)
Conference Proceeding
Wright, G., Ivison, R., Hastings, P., Wells, M., Sharples, R., Allington-Smith, J., & Content, R. (2002). Multiple Integral Field Spectroscopy.

The origin of [FeII] emission in NGC 4151 (2002)
Journal Article
Turner, J., Allington-Smith, J., Chapman, S., Content, R., Done, C., Haynes, R., …Morris, S. (2002). The origin of [FeII] emission in NGC 4151. Monthly Notices of the Royal Astronomical Society, 331(2), 284-292. https://doi.org/10.1046/j.1365-8711.2002.05214.x

The centre of NGC 4151 has been observed in the J band with the SMIRFS integral field unit (IFU) on the UK Infrared Telescope. A map of [Fe ii] emission is derived, and compared with the distributions of the optical narrow-line region and radio jet.... Read More about The origin of [FeII] emission in NGC 4151.