Investigations on an Improved Transmission Line for THz DNP-NMR Spectroscopy
Received:May 15, 2018  Revised:September 12, 2019  download
Citation:
Hits: 149
Download times: 0
Author NameAffiliation
Cao Yichao Investigations on an Improved Transmission Line for THz DNP-NMR Spectroscopy 
Chen Qiang Investigations on an Improved Transmission Line for THz DNP-NMR Spectroscopy 
Zhang Chen Investigations on an Improved Transmission Line for THz DNP-NMR Spectroscopy 
Song Tao Investigations on an Improved Transmission Line for THz DNP-NMR Spectroscopy 
Huang Jie Investigations on an Improved Transmission Line for THz DNP-NMR Spectroscopy 
Hu Qiao Investigations on an Improved Transmission Line for THz DNP-NMR Spectroscopy 
Liu Diwei Investigations on an Improved Transmission Line for THz DNP-NMR Spectroscopy 
Wang Wei Investigations on an Improved Transmission Line for THz DNP-NMR Spectroscopy 
Hu Min Investigations on an Improved Transmission Line for THz DNP-NMR Spectroscopy 
Zhong Renbin Investigations on an Improved Transmission Line for THz DNP-NMR Spectroscopy 
Shen Hao Investigations on an Improved Transmission Line for THz DNP-NMR Spectroscopy 
Abstract:The improved transmission and mirror system for a 263 GHz DNP-NMR spectrometer has been designed and numerically simulated based on the geometric optics theory and the vector diffraction theory. The system includes two corrugated waveguides, a parabolic mirror and an angle-adjustable phase-correcting mirror. The simulation results show that a well-focused Gaussian-like output wave-beam with 99.90% scalar Gaussian mode content, 99.55% vector Gaussian mode content has been obtained. The direction of the output beam can be changed by only adjusting the angle of the phase-correcting mirror to match the DNP-NMR sample. The scalar Gaussian mode content is about 99.57%, and the vector Gaussian mode content is about 98.97% when the direction of the output beam changes in ± 15o.
keywords:Transmission line  phase-correcting mirror  nuclear magnetic resonance  Dynamic nuclear polarization
  HTML  View/Add Comment  Download reader

Copyright:《Journal of Infrared And Millimeter Waves》