Postprocessing of FDTD solutions for precise calculations of eigenfrequencies of photonic periodic structures utilizing the variational expression

Yasuo Ohtera, Yoshihiro Sasaki, Shojiro Kawakami

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

This paper presents a method that improves by orders of magnitude the accuracy of the finite-difference time-domain (FDTD)-calculated eigenfrequencies of photonic crystals. The method utilizes a variational expression for the eigenfrequencies of periodic structures. Applications to perfect crystals, waveguides, and resonant cavities are demonstrated. The paper confirms that the method can reduce the computational time by more than 90% while obtaining accuracy in frequency comparable to that obtained solely by the conventional FDTD method.

Original languageEnglish
Pages (from-to)1628-1636
Number of pages9
JournalJournal of Lightwave Technology
Volume22
Issue number6
DOIs
Publication statusPublished - 2004 Jun

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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