Effects of material composition on the superlens frequency of photonic crystals

Xiao Hong Sun, Xiaoming Tao, Kai Cheong Kwan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

We use the plane-wave (PW) method to calculate the superlens frequency of photonic crystals with various material compositions. At this frequency, photonic crystal behaves like a medium with isotropic negative index equal to -1. The relationship between the frequency and material compositions is derived from the calculated data. For the TE and TM modes, the relationship has the same format. From the relationship, a case has been chosen and, under these conditions, the wave-propagating field through the photonic crystal has been calculated by the finite-difference time-domain method. A good agreement is obtained between the results from the PW method and the finite-difference time-domain calculation. This is very useful for fabricating photonic crystal superlens material at an appropriate frequency.
Original languageEnglish
Pages (from-to)571-575
Number of pages5
JournalJournal of the Optical Society of America B: Optical Physics
Volume25
Issue number4
DOIs
Publication statusPublished - 1 Jan 2008

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

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