Study on a tunable narrow-band filter based on magnetic defects in photonic crystal in the terahertz region

Hui Zhang; Xianfeng Xu; Fei Fan; Shengjiang Chang

doi:10.1117/1.OE.54.4.047104

23 April 2015 Study on a tunable narrow-band filter based on magnetic defects in photonic crystal in the terahertz region

Hui Zhang, Xianfeng Xu, Fei Fan, Shengjiang Chang

Author Affiliations +

Optical Engineering, Vol. 54, Issue 4, 047104 (April 2015). https://doi.org/10.1117/1.OE.54.4.047104

Abstract

A narrow-band filter with a broad tuning range is designed based on a magnetic field controlled ferrite defect in photonic crystal for a terahertz (THz) wave. The resonance defect modes of a ferrite defect in photonic crystal in the THz region are studied by using the finite difference time domain method. Detailed calculations on the shifts of the defect mode frequency and transmission properties reveal that the peak frequency of transmission spectra can continuously vary from 0.77 to 0.95 THz under the external magnetic field and the bandwidth of the filter is about 0.015 THz.

Citation Download Citation

Hui Zhang, Xianfeng Xu, Fei Fan, and Shengjiang Chang "Study on a tunable narrow-band filter based on magnetic defects in photonic crystal in the terahertz region," Optical Engineering 54(4), 047104 (23 April 2015). https://doi.org/10.1117/1.OE.54.4.047104

Published: 23 April 2015

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available