Broadband terahertz heterodyne spectrometer exploiting synchrotron radiation at megahertz resolution | Zendy

J.F. Lampin | Zendy; Olivier Pirali | Zendy; Zachary Buchanan | Zendy; Sophie Eliet | Zendy; MarieAline MartinDrumel | Zendy; Joan Turut | Zendy; Pascale Le Roy | Zendy; Francis Hindle | Zendy; G. Mouret | Zendy

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Broadband terahertz heterodyne spectrometer exploiting synchrotron radiation at megahertz resolution

Author(s) -

J.F. Lampin,

Olivier Pirali,

Zachary Buchanan,

Sophie Eliet,

MarieAline MartinDrumel,

Joan Turut,

Pascale Le Roy,

Francis Hindle,

G. Mouret

Publication year - 2019

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.44.004985

Subject(s) - terahertz radiation , spectrometer , optics , heterodyne (poetry) , synchrotron radiation , terahertz spectroscopy and technology , broadband , laser , physics , spectroscopy , materials science , optoelectronics , acoustics , quantum mechanics

A new spectrometer allowing both high resolution and broadband coverage in the terahertz (THz) domain is proposed. This instrument exploits the heterodyne technique between broadband synchrotron radiation and a quantum-cascade-laser-based molecular THz laser that acts as the local oscillator. Proof of principle for exploitation for spectroscopy is provided by the recording of molecular absorptions of hydrogen sulfide (H 2 S) and methanol (CH 3 OH) around 1.073 THz. Ultimately, the spectrometer will enable to cover the 1-4 THz region in 5 GHz windows at Doppler resolution.

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