Near-field subsurface detection using metamaterial inspired probes

作者：Ren Zhao^*; Boybay Muhammed S; Ramahi Omar M

来源：Applied Physics A-Materials Science & Processing, 2011, 103(3): 839-842.

DOI：10.1007/s00339-010-6236-5

Recently, it was shown that single negative media can significantly enhance the sensitivity of near-field probes. Inspired by this recent finding, a new near-field probe is proposed for noninvasive subsurface detection. The new probe uses a single split ring resonator (SRR) instead of a periodic arrangement of SRRs for negative material realization. Experimental tests were conducted to detect the presence of cracks on aluminum plates, the presence of small aluminum blocks located behind a layer of ground chicken (lossy medium), and the presence of a small aluminum block submerged in sodium chloride solution (lossy medium) with a salinity of 1%. Preliminary results show that the proposed near-field probe enables detection of electrically small targets buried in lossy media.

• 出版日期2011-6