TY - GEN
T1 - Metal slanted columnar thin film THz optical sensors
AU - Hofmann, T.
AU - Schmidt, D.
AU - Boosalis, A.
AU - Kühne, P.
AU - Herzinger, C. M.
AU - Woollam, J. A.
AU - Schubert, E.
AU - Schubert, M.
N1 - Funding Information:
The authors would like to acknowledge financial support from the Army Research Office (W911NF-09-C-0097), the National Science Foundation (MRSEC DMR-0820521, MRI DMR-0922937, DMR-0907475, ECCS-0846329, EPS-1004094), the University of Nebraska-Lincoln, the J.A. Woollam Foundation.
PY - 2011
Y1 - 2011
N2 - We demonstrate that the anisotropic optical response of metal (cobalt) slanted columnar thin films (STF) at THz frequencies strongly depends on the dielectric properties of the dielectric ambient surrounding the slanted columnar thin films. An effective medium dielectric function approach is used to describe the combined optical response of metal slanted columnar thin film and dielectric ambient. Our observations indicate that metal (cobalt) slanted columnar thin films can be used as sensors which will enable detection and characterization of minute amounts of dielectrics at THz frequencies, such as for flow-based detection of liquid chemical constituents.
AB - We demonstrate that the anisotropic optical response of metal (cobalt) slanted columnar thin films (STF) at THz frequencies strongly depends on the dielectric properties of the dielectric ambient surrounding the slanted columnar thin films. An effective medium dielectric function approach is used to describe the combined optical response of metal slanted columnar thin film and dielectric ambient. Our observations indicate that metal (cobalt) slanted columnar thin films can be used as sensors which will enable detection and characterization of minute amounts of dielectrics at THz frequencies, such as for flow-based detection of liquid chemical constituents.
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U2 - 10.1557/opl.2012.780
DO - 10.1557/opl.2012.780
M3 - Conference contribution
AN - SCOPUS:84879482639
SN - 9781627482233
T3 - Materials Research Society Symposium Proceedings
SP - 1
EP - 6
BT - Functional Semiconductor Nanocrystals and Metal-Hybrid Structures
T2 - 2011 MRS Fall Meeting
Y2 - 28 November 2011 through 2 December 2011
ER -