dc.contributor.supervisor |
Naylor, David A. |
|
dc.contributor.author |
Huber, Anthony Irving |
|
dc.contributor.author |
University of Lethbridge. Faculty of Arts and Science |
|
dc.date.accessioned |
2021-10-20T19:10:40Z |
|
dc.date.available |
2021-10-20T19:10:40Z |
|
dc.date.issued |
2021 |
|
dc.identifier.uri |
https://hdl.handle.net/10133/6068 |
|
dc.description.abstract |
Recent advances in superconducting far-infrared (FIR) bolometer detectors have resulted in increases to their sensitivity of at least two orders of magnitude over broadband detectors flown on previous far-infrared spaceborne astronomy instruments. Such sensitivity means that observations employing a Fourier transform spectrometer (FTS) will require techniques to reduce the spectral bandwidth of a detector to limit the photon noise. The proposed SPICA SAFARI instrument employs grating spectrometers to post-disperse the light that has been modulated by a polarizing FTS onto a detector array: a post-dispersed polarizing FTS (PDPFTS). This thesis presents the development of a FIR PDPFTS consisting of a FTS and grating spectrometer. The challenges of phase correction given the narrow bandwidth of the PDPFTS were explored and a technique was developed for reliable phase correction. The results show that the PDPFTS works as predicted, and allows one to recover a broadband spectrum at high resolution. |
en_US |
dc.language.iso |
en_US |
en_US |
dc.publisher |
Lethbridge, Alta. : University of Lethbridge, Dept. of Physics and Astronomy |
en_US |
dc.relation.ispartofseries |
Thesis (University of Lethbridge. Faculty of Arts and Science) |
en_US |
dc.subject |
optics |
en_US |
dc.subject |
astronomy |
en_US |
dc.subject |
far-infrared |
en_US |
dc.subject |
Fourier transform spectrometer |
en_US |
dc.subject |
grating spectrometer |
en_US |
dc.subject |
phase correction |
en_US |
dc.subject |
Optics |
en_US |
dc.subject |
Astronomy |
en_US |
dc.subject |
Fourier transform infrared spectroscopy |
en_US |
dc.subject |
Optical spectrometers |
en_US |
dc.subject |
Spectrum analysis -- Instruments |
en_US |
dc.subject |
Astronomical spectroscopy -- Instruments -- Design and construction |
en_US |
dc.subject |
Low temperature engineering |
en_US |
dc.subject |
Dissertations, Academic |
en_US |
dc.title |
Exploring the challenges of a far-infrared post-dispersed polarising Fourier transform spectrometer |
en_US |
dc.type |
Thesis |
en_US |
dc.publisher.faculty |
Arts and Science |
en_US |
dc.publisher.department |
Department of Physics and Astronomy |
en_US |
dc.degree.level |
Masters |
en_US |
dc.proquest.subject |
0752 |
en_US |
dc.proquest.subject |
0605 |
en_US |
dc.proquest.subject |
0606 |
en_US |
dc.proquestyes |
Yes |
en_US |