Title :
Comparison of THz and near-IR scattering effects from air-solid interfaces
Author :
Brown, E.R. ; Bennett, D.B. ; Zhang, W. ; Taylor, Z.D. ; Grundfest, W.S.
Author_Institution :
Depts of Phys. & Electr. Eng., Wright State Univ., Dayton, OH, USA
Abstract :
Scattering attenuation from roughened glass surfaces is studied experimentally in the near-IR and THz regions. The IR attenuation is substantial - up to 3-dB per interface in the 1.55-micron region - on samples having ~1-μm RMS surface roughness. The same samples show negligible scattering attenuation in the THz region. This is important for biomedical applications, such as skin-burn and corneal sensing, for which THz and IR technologies are competing for acceptance.
Keywords :
electromagnetic wave scattering; interface roughness; light scattering; surface roughness; IR attenuation; RMS surface roughness; THz scattering effects; air-solid interfaces; near-IR scattering effects; roughened glass surfaces; scattering attenuation; wavelength 1.55 micron; Attenuation; Biomedical measurements; Imaging; Rough surfaces; Scattering; Sensors; Surface roughness;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6104847
