Design and evaluation of a pulsed-jet chirped-pulse millimeter-wave spectrometer for the 70–102 GHz region
作者： G. Barratt Park , Adam H. Steeves , Kirill Kuyanov-Prozument , Justin L. Neill , Robert W. Field
DOI: 10.1063/1.3597774
关键词:
摘要: Chirped-pulse millimeter-wave (CPmmW) spectroscopy is the first broadband (multi-GHz in each shot) Fourier-transform technique for high-resolution survey region. The design based on chirped-pulse microwave (CP-FTMW) [G. G. Brown, B. C. Dian, K. O. Douglass, S. M. Geyer, T. Shipman, and H. Pate, Rev. Sci. Instrum. 79, 053103 (2008)]10.1063/1.2919120, which described frequencies up to 20 GHz. We have built an instrument that covers 70–102 GHz frequency region can acquire 12 of spectrum a single shot. Challenges using include lower achievable sample polarization, shorter Doppler dephasing times, problems with signal phase stability. However, these challenges been partially overcome preliminary tests indicate significant advantage over existing spectrometers time required record spec...
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