## Electromagnetic analysis of diffraction gratings by the finite-difference time-domain method

JOSA A, Vol. 15, Issue 1, pp. 152-157 (1998)

http://dx.doi.org/10.1364/JOSAA.15.000152

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### Abstract

Diffraction gratings with feature sizes comparable to the wavelength are analyzed with a finite-difference time-domain method, which is a unique approach to electromagnetic problems in the time domain. The diffraction efficiencies obtained are in good agreement with other commonly used numerical methods in the frequency domain. As a further application, diffraction problems with pulsed light are also investigated.

© 1998 Optical Society of America

**OCIS Codes**

(050.1950) Diffraction and gratings : Diffraction gratings

(050.1960) Diffraction and gratings : Diffraction theory

(050.1970) Diffraction and gratings : Diffractive optics

(260.2110) Physical optics : Electromagnetic optics

**Citation**

Hiroyuki Ichikawa, "Electromagnetic analysis of diffraction gratings by the finite-difference time-domain method," J. Opt. Soc. Am. A **15**, 152-157 (1998)

http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-15-1-152

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