Results 21 to 30 of about 333 (144)

Astrophotonics -- current capabilities and the road ahead

Astrophotonics represents a cutting-edge approach in observational astronomy. This paper explores the significant advancements and potential applications of astrophotonics, highlighting how photonic technologies stand to revolutionise astronomical instrumentation.
Norris, Barnaby, Gross, Simon, Leon-Saval, Sergio G., Betters, Christopher H., Bryant, Julia, Yu, Qingshan, Wang, Adeline Haobing, Douglass, Glen, Arcadi, Elizabeth, Sanny, Ahmed, Withford, Michael, Tuthill, Peter, Bland-Hawthorn, Joss   +12 more
openaire   +3 more sources

FBGs in Specialty Optical Fibres for Astrophotonics

, 2023
Astrophotonics is a beautiful combination of the knowledge of photonics and astronomy. It offers the astronomy community unprecedented access to nanoscale light manipulation. In this thesis, I utilized established astrophotonics techniques such as photonic lanterns, and extended the capability of one specific technique - the AFBG OH suppression filters,
Yu, Qingshan
openaire   +2 more sources

The potsdam arrayed waveguide spectrograph: A demonstrator of a cross‐dispersed integrated photonic spectrograph developed for the astronomical H‐band

Astronomische Nachrichten, Volume 344, Issue 8-9, October-November 2023., 2023
The Potsdam Arrayed Waveguide Spectrograph (PAWS) is based on an integrated photonic spectrograph designed and developed by innoFSPEC to work in the astronomical H‐band. PAWS demonstrates how a traditional bulk optics spectrograph can be miniaturized and additionally serves as a tool for testing in‐house developed astrophotonical devices.
Eloy Hernandez, Alan Günther, Andreas Stoll, Svend‐Marian Bauer, Stella Vješnica, Kalaga Madhav, Martin M. Roth   +6 more
wiley   +1 more source

Simulation and optimisation of an astrophotonic reformatter [PDF]

Monthly Notices of the Royal Astronomical Society, 2018
Image slicing is a powerful technique in astronomy. It allows the instrument designer to reduce the slit width of the spectrograph, increasing spectral resolving power whilst retaining throughput. Conventionally this is done using bulk optics, such as mirrors and prisms, however more recently astrophotonic components known as photonic lanterns (PLs ...
Th Anagnos, R J Harris, M K Corrigan, A P Reeves, M J Townson, D G MacLachlan, R R Thomson, T J Morris, C Schwab, A Quirrenbach   +9 more
openaire   +3 more sources

Characterization of a C‐RED One camera for astrophotonical applications

Astronomische Nachrichten, Volume 344, Issue 8-9, October-November 2023., 2023
Abstract To better understand the impact of the avalanche gain applied in the detector technology and apply this technology in our in‐house astrophotonic projects, we have characterized a C‐RED One camera and produced a stable and reliable method for calculating the system gain at any desired avalanche gain setting.
Stella Vješnica, Eloy Hernandez, Kalaga Madhav, Martin M. Roth   +3 more
wiley   +1 more source

On‐chip micro‐ring resonator array spectrum detection system based on convex optimization algorithm

Nanophotonics, Volume 12, Issue 4, Page 715-724, February 2023., 2023
Abstract We propose an all on‐chip micro‐ring resonator array spectrum detection system (MRRAS). Micro‐ring resonator array as the core is used to construct the transmission matrix of the system. The theoretical analysis of the spectrum detection system is completed with waveguide transmission theory and spectrum construction method based on convex ...
Xinyang Chen, Xuetao Gan, Yong Zhu, Jie Zhang   +3 more
wiley   +1 more source

Laser Direct Writing of Silver Clusters‐Based Subwavelength Periodic Structures Embedded in Mid‐Infrared Gallo‐Germanate Glass

Advanced Photonics Research, Volume 3, Issue 10, October 2022., 2022
Herein, the silver‐assisted direct laser writing in mid‐infrared transmitting gallo‐germanate glasses is demonstrated. Via a careful optimization of the glass composition, a sub‐micrometric photoinduced glass modification is produced. Based on this phenomenon, 3D periodic structures are fabricated inside the glass volume.
Théo Guérineau, Alexandre Fargues, Jerome Lapointe, Réal Vallée, Younès Messaddeq, Lionel Canioni, Yannick Petit, Thierry Cardinal   +7 more
wiley   +1 more source

Astrophotonics and IR astronomy [PDF]

Proceedings of the International Astronomical Union, 2009
Working in collaboration with industry, the University of Sydney, the Anglo-Australian Observatory and Macquarie University are developing new ‘astrophotonic’ solutions to problems in astronomical instrumentation. A key first step involves overcoming the limitations imposed by multimode (MM) optical fibres that have been used by astronomers for many ...
J. W. OByrne, J. Bland-Hawthorn, R. Haynes, A. Horton, J. Bryant, J. G. Robertson   +5 more
openaire   +1 more source

Spectrographs for astrophotonics

Optics Express, 2017
The next generation of Extremely Large Telescopes (ELT), with diameters up to 39 meters, is planned to begin operation in the next decade and promises new challenges in the development of instruments since the instrument size increases in proportion to the telescope diameter D, and the cost as D2 or faster.
N. Blind, E. Le coarer, P. Kern, S. Gousset   +3 more
openaire   +3 more sources

Astrophotonic spectroscopy: defining the potential advantage [PDF]

Monthly Notices of the Royal Astronomical Society, 2010
Revised version submitted to ...
Allington-Smith, J.R., Bland-Hawthorn, Joss   +1 more
openaire   +3 more sources