|Table of Contents|

Influence of Aperture Shape on Extraordinary Transmission Through Periodically Perforated Metal Films(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2009年03期
Page:
37-41
Research Field:
物理学
Publishing date:

Info

Title:
Influence of Aperture Shape on Extraordinary Transmission Through Periodically Perforated Metal Films
Author(s):
Cao Yurong; Ye Yonghong
School of Physical Science and Technology,Nanjing Normal University,Nanjing 210097,China
Keywords:
period ica lly perforated m eta l film;  enhanced transm ission;  sim ulation;  hole shape
PACS:
O484.41
DOI:
-
Abstract:
TheH igh Frequency Structure S imu la tor is used to sim ulate the enhanced transm ission through period ica lly perforated m eta l film s in them iddle- infrared reg ion. W e studied the circ le, e llipse, square and rectangular ho le array s and dem onstrated ( w ith d iffe rent shapes) that the transm ission properties are strong ly influenced by the ho le shape. For the e llipse and rectangu la r ho le arrays, the position o f the transm ission peak sh ifts tow ard longerw aveleng th as the aspect ra tio increases. By comparing the sh ift o f the transm ission peak among the abov e fou r arrays, w e found tha t shape resonace of rec tangu lar and e llipse ho les is larger than the others. The simu lated results indicate that localizedm odes p lay an im po rtant role in the enhanced transm ission. The optica l transm ission prope rties of the e llipse and rectangu lar ho le array s under d ifferent po larization o f the incident ligh t are also simu la ted.

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Last Update: 2013-04-23