Compact millimeter-wavelength Fourier-transform spectrometer
| Autor: | Eleanor Rath, S. S. Meyer, Z. Pan, Hazal Goksu, Mira Liu, Ritoban Basu Thakur, Bradford Benson, Dale J. Fixsen |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Physics - Instrumentation and Detectors Spectrometer business.industry Volume (computing) Astrophysics::Instrumentation and Methods for Astrophysics FOS: Physical sciences Instrumentation and Detectors (physics.ins-det) 01 natural sciences Atomic and Molecular Physics and Optics 010309 optics Wavelength Interferometry Optics Interference (communication) 0103 physical sciences Millimeter Electrical and Electronic Engineering Spectral resolution business Astrophysics - Instrumentation and Methods for Astrophysics Engineering (miscellaneous) Throughput (business) Instrumentation and Methods for Astrophysics (astro-ph.IM) Astrophysics::Galaxy Astrophysics |
| Zdroj: | Applied optics. 58(23) |
| ISSN: | 1539-4522 |
| Popis: | We have constructed a Fourier-transform spectrometer (FTS) operating between 50 and 330 GHz with minimum volume (355 x260 x64 mm) and weight (13 lbs) while maximizing optical throughput (100 $\mathrm{mm}^2$ sr) and optimizing the spectral resolution (4 GHz). This FTS is designed as a polarizing Martin-Puplett interferometer with unobstructed input and output in which both input polarizations undergo interference. The instrument construction is simple with mirrors milled on the box walls and one motorized stage as the single moving element. We characterize the performance of the FTS, compare the measurements to an optical simulation, and discuss features that relate to details of the FTS design. The simulation is also used to determine the tolerance of optical alignments for the required specifications. We detail the FTS mechanical design and provide the control software as well as the analysis code online. Comment: Submitted to Applied Optics. [Copyright 2019 Optical Society of America]. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved |
| Databáze: | OpenAIRE |
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