TY - JOUR
T1 - Analysis of tunable multiple-filtering property in a photonic crystal containing strongly extrinsic semiconductor
AU - Hung, H. C.
AU - Wu, C. J.
AU - Yang, T. J.
AU - Chang, S. J.
N1 - Funding Information:
S.-J. Chang would like to thank the NSC and Bureau of Energy, Ministry of Economic Affairs of Taiwan, R.O.C. for the financial support under Contract No. NSC-100-2221-E-006-040-MY2 and 100-D0204-6 and the LED Lighting Research Center of NCKU.
Funding Information:
C.-J. Wu acknowledges the financial support from the National Science Council (NSC) of the Republic of China (R.O.C., Taiwan) under Contract No. NSC-100-2112-M-003-005-MY3 and from the National Taiwan Normal University under NTNU100-D-01.
PY - 2011
Y1 - 2011
N2 - In this work, we analyze the tunable multiple-filtering property at infrared frequency in a finite semiconductor-dielectric photonic crystal (SDPC), (AB) P A, where A is a strongly extrinsic semiconductor, n-type germanium (n-Ge). B is a dielectric material, and P is the number of periods. It is found that multiple filtering phenomenon can be obtained in the region where the permittivity of n-Ge is negative. The number of resonant peaks is found to be equal to P. With the permittivity of n-Ge being concentration-dependent, these resonant peaks can be shifted as a function of impurity concentration. The analysis indicates that such an SDPC can work as a tunable multichannel filter which is of technical use for the semiconductor applications in optical communications.
AB - In this work, we analyze the tunable multiple-filtering property at infrared frequency in a finite semiconductor-dielectric photonic crystal (SDPC), (AB) P A, where A is a strongly extrinsic semiconductor, n-type germanium (n-Ge). B is a dielectric material, and P is the number of periods. It is found that multiple filtering phenomenon can be obtained in the region where the permittivity of n-Ge is negative. The number of resonant peaks is found to be equal to P. With the permittivity of n-Ge being concentration-dependent, these resonant peaks can be shifted as a function of impurity concentration. The analysis indicates that such an SDPC can work as a tunable multichannel filter which is of technical use for the semiconductor applications in optical communications.
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U2 - 10.1163/156939311798072009
DO - 10.1163/156939311798072009
M3 - Article
AN - SCOPUS:80155188316
SN - 0920-5071
VL - 25
SP - 2089
EP - 2099
JO - Journal of Electromagnetic Waves and Applications
JF - Journal of Electromagnetic Waves and Applications
IS - 14-15
ER -