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PAMPA DEBNATH1, ARPAN DEYASI1,* , UJJWAL MONDAL2, ANGSUMAN SARKAR3
- Department of Electronics and Communication Engineering, RCC Institute of Information Technology, Kolkata, 700015, India
- Department of Applied Physics, University of Calcutta, Kolkata, 70009, India
- Department of Electronics and Communication Engineering, Kalyani Govt Engineering College, Kalyani, 741235, India
Bandwidth in wavelength scale and ripple in passband region of Double Negative (DNG) material based photonic filter is analytically computed at 1550 nm. Transfer matrix technique is adopted for transmittivity computation after evaluating the band structure by Finite Domain Time Difference (FDTD) approach, and two different types of metamaterial, paired nanorod and nano-fishnet with elliptical void are considered for simulation. By suitably choosing the dimensions of constituent materials, passband ripple obtained is minutely small. Results show superiority with those similar filters even at polarized inci- dence of electromagnetic wave with continuous passband region. Results are important for incorporating the filter as frequency-selective-surface as well as utilizing in all-optical-integrated-circuit..
DNG material, Photonic filter, Bandwidth, Ripple, Transmissivity.
Submitted at: Aug. 27, 2020
Accepted at: Aug. 16, 2021
PAMPA DEBNATH, ARPAN DEYASI, UJJWAL MONDAL, ANGSUMAN SARKAR, Analytical investigation of double negative material based photonic filter performance at 1550 nm, Journal of Optoelectronics and Advanced Materials Vol. 23, Iss. 7-8, pp. 319-326 (2021)
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