Article Per Year (5 Year)
p-Index From 2021 - 2026
0
P-Index
This Author published in this journals
All Journal Indonesian Journal of Physics (IJP)
R.E. Siregar
1) Department of Physics, Institut Teknologi Bandung. 2) Department of Physics, Universitas Padjajaran
Astronomy Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
The Effects of Sinusoidally Modulated Linear Refractive Index on The Wave Characteristics in Linear and Nonlinear Media Muksin Muksin; R.E. Siregar; A.A. Iskandar; M.O. Tjia
Indonesian Journal of Physics Vol 14 No 1 (2003): Vol. 14 No.1, Januari 2003
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (358.079 KB)

Abstract

A numerical study has been carried out on the effects of shallow sinusoidal modulation on the refractive index of linear and nonlinear medium. The result on the linear system demonstrates generally the existence of a transmission band gap at acertain range of wavelength as usually revealed by analytic solution obtained with strictly nonreflecting boundary condition. It is shown in the numerical results that a more general boundary condition leads to similar transmission characteristics as the device length becomes much larger than the modulation period. A further description is given on the variation of gap characteristics with the system parameters. The extension by including the nonlinear term representing the intensity dependent refractive index (IDRI) effect gives rise to a new feature of the transmission gap, exhibiting imperfect reflection characterized by the appearance of transmission channels in the gap. As the input intensity increases, further modification of the gap feature occurs in conjunction with the appearance and growth of hysteretic effect featuring multistable states useful for logic functions. The variations of hysteretic characteristics with respect to the system parameters are also described.
Co-Authors A.A. Iskandar M.O. Tjia Muksin Muksin