TY - JOUR
T1 - Subdiffraction-limited imaging based on longitudinal modes in a spatially dispersive slab
AU - Yanai, Avner
AU - Levy, Uriel
PY - 2014/8/6
Y1 - 2014/8/6
N2 - It was proposed that a flat silver layer could be used to form a subdiffraction-limited image when illuminated near its surface plasmon resonance frequency [J. B. Pendry, Phys. Rev. Lett. 85, 3966 (2000)10.1103/PhysRevLett. 85.3966]. In this paper, we study the possibility of obtaining sub diffraction resolution using a different mechanism, with no surface plasmons involved. Instead, by taking into account the nonlocal response of a thin silver slab, we show that longitudinal modes contribute to the formation of a subdiffraction-limited image in a frequency regime above the plasma frequency. The differences between these two distinct mechanisms are studied and explained.
AB - It was proposed that a flat silver layer could be used to form a subdiffraction-limited image when illuminated near its surface plasmon resonance frequency [J. B. Pendry, Phys. Rev. Lett. 85, 3966 (2000)10.1103/PhysRevLett. 85.3966]. In this paper, we study the possibility of obtaining sub diffraction resolution using a different mechanism, with no surface plasmons involved. Instead, by taking into account the nonlocal response of a thin silver slab, we show that longitudinal modes contribute to the formation of a subdiffraction-limited image in a frequency regime above the plasma frequency. The differences between these two distinct mechanisms are studied and explained.
UR - http://www.scopus.com/inward/record.url?scp=84905734529&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.90.075107
DO - 10.1103/PhysRevB.90.075107
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AN - SCOPUS:84905734529
SN - 1098-0121
VL - 90
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 7
M1 - 075107
ER -