[OPTICAL REVIEW Vol. 17, No. 4 (2010) 435-437]
© 2010 The Japan Society of Applied Physics

Simpler and More Intuitive Interpretation of Stability Condition for Finite-Difference Time-Domain Method

Hiroyuki ICHIKAWA*

Faculty of Engineering, Ehime University, 3 Bunkyo, Matsuyama 790-8577, Japan

(Received April 28, 2010; Accepted May 21, 2010)

In using a popular numerical electromagnetic solver, finite-different time-domain (FDTD) method, temporal and spatial discretization must obey a so-called stability condition. This short paper provides straightforward and easy-to-understand interpretation for the condition than a frequently referred traditional one.

Key words: FDTD method, stability condition

*E-mail address: hichikaw@dpc.ehime-u.ac.jp