Terahertz spectroscopy of natural stone materials

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Using terahertz time-domain spectroscopy (THz-TDS), we measured optical constants of nine different types of common natural stones: slate, gneiss, marble, mudstone, sandstone, dolomite, granite, tuff, and diorite. The result shows that most natural stones are fairly transparent in THz frequency range, and dolomite, in particular, exhibits a nearly uniform refractive index of 2.7 over frequency range from 0.2 to 1 THz. The high refractive index of dolomite is comparable to silicon, and a fabricated dolomite THz lens shows an applicable performance.
Publisher
IEEE Computer Society
Issue Date
2014-09
Language
English
Citation

39th International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2014

ISSN
2162-2027
DOI
10.1109/IRMMW-THz.2014.6956360
URI
http://hdl.handle.net/10203/313874
Appears in Collection
PH-Conference Papers(학술회의논문)
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