Publication Type |
Journal Article |
School or College |
College of Science |
Department |
Physics |
Creator |
Vardeny, Zeev Valentine |
Other Author |
Tong, M.; Kirakosyan, A. S.; Shahbazyan, T. V. |
Title |
Ultrafast response of surface electromagnetic waves in an aluminum film perforated with subwavelength hole arrays |
Date |
2008-02 |
Description |
The ultrafast dynamics of surface electromagnetic waves photogenerated on aluminum film perforated with subwavelength arrays of holes was studied in the visible spectral range by the technique of transient photomodulation with ~100 fs time resolution. We observed a pronounced blueshift of the resonant transmission band that reveals the important role of plasma attenuation in the optical response of nanohole arrays. The blueshift is inconsistent with plasmonic mechanism of extraordinary transmission and points to the crucial role of interference in the formation of transmission bands. The transient photomodulation spectra were successfully modeled within the Boltzmann equation approach for the electron-phonon relaxation dynamics, involving nonequilibrium hot electrons and quasiequilibrium phonons. |
Type |
Text |
Publisher |
American Physical Society |
Journal Title |
Physical Review Letters |
Volume |
100 |
Issue |
5 |
First Page |
56808 |
Last Page |
56801 |
DOI |
10.1103/PhysRevLett.100.056808 |
citatation_issn |
0031-9007 |
Subject |
Subwavelength hole arrays; Nanohole arrays; Transient photomodulation; Plasmonic lattices; Surface electromagnetic waves; SEW; Periodic subwavelength arrays |
Subject LCSH |
Picosecond pulses; Electromagnetic waves; Aluminum films -- Magnetic properties; Aluminum films -- Optical properties |
Language |
eng |
Bibliographic Citation |
Tong, M., Kirakosyan, A. S., Shahbazyan, T. V., & Vardeny, Z. V. (2008). Ultrafast response of surface electromagnetic waves in an aluminum film perforated with subwavelength hole arrays. Physical Review Letters, 100(5), 056808-1-4. |
Rights Management |
(c) American Physical Society http://dx.doi.org/10.1103/PhysRevLett.100.056808 |
Format Medium |
application/pdf |
Format Extent |
592,757 bytes |
Identifier |
ir-main,10112 |
ARK |
ark:/87278/s6kp8kfk |
Setname |
ir_uspace |
ID |
703993 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6kp8kfk |