Endo, M;
Sukegawa, T;
Silva, A;
Kobayashi, Y;
(2020)
Subgigahertz-resolution table-top spectrograph calibrated with a 4-GHz optical frequency comb.
Journal of Astronomical Telescopes, Instruments, and Systems
, 6
(2)
, Article 020501. 10.1117/1.JATIS.6.2.020501.
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Abstract
We developed a table-top multipass spectrograph with a 610-MHz resolution (corresponding to a resolving power of 450,000) and a throughput of 10%. The spectrograph was calibrated with a 4-GHz optical frequency comb (OFC) that did not require filtering cavities, which would hinder long-term operation. The OFC is centered at a wavelength of 1 μm, which makes it suitable for the investigation of M dwarf stars and the compact size of the OFC-calibrated spectrograph makes it suitable for use in small to mid-scale observatories.
| Type: | Article |
|---|---|
| Title: | Subgigahertz-resolution table-top spectrograph calibrated with a 4-GHz optical frequency comb |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1117/1.JATIS.6.2.020501 |
| Publisher version: | https://doi.org/10.1117/1.JATIS.6.2.020501 |
| Language: | English |
| Additional information: | Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI http://creativecommons.org/licenses/by/4.0/ |
| Keywords: | optical frequency comb; radial velocity; calibration source; high-resolution spectrograph; near infrared. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10112575 |
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