TY  - RPRT
TI  - Complex optical constants on a subwavelength scale.
AU  - R Hillenbrand
AU  - F Keilmann
PY  - 2000
DO  - 10.1103/physrevlett.85.3029
UR  - https://pubmed.ncbi.nlm.nih.gov/11005995/
ID  - 11005995
ER  -