arXiv subjects

Borwen You

Publications and source records attributed to Borwen You.

2 recordsLinked to original sources

arXiv2020

Investigation of geometry-dependent field properties of 3D printed metallic photonic crystals

One terahertz (THz) waveguide based on 3D printed metallic photonic crystals is experimentally and numerically demonstrated in 0.1-0.6 THz, which consists of periodic metal rod arrays (MRAs). Results demonstrated that such waveguide supports two waveguide modes such as fundamental and high-order TM-modes. The high-order TM-mode shows high field confinement, and it is sensitive to the geometry changes. By tuning the metal rod interspace, the spectral positions, bandwidths, and transmittances of the high-frequency band can be optimized. The investigation shows that a mode conversion between high-order modes occurs when the MRAs symmetry is broken via change the air interspace.

physics.optics↗

arXiv2014

A Pilot Clinical Study to Investigate the Human Whole Blood Spectrum Characteristics in the Sub-THz Region

We have conducted a pilot clinical study to not only investigate the THz spectra of ex-vivo fresh human whole blood of 28 patients following 8-hours fasting guideline, but also to find out the critical blood ingredients of which the concentration dominantly affects those THz spectra. A great difference between the THz absorption properties of human blood among different people was observed, while the difference can be up to ~15% of the averaged absorption coefficient of the 28 samples. Our pilot clinical study indicates that triglyceride and red blood cell were two dominant factors to have significant clinically defined negative correlation to the sub-THz absorption coefficients.

physics.bio-ph↗