Bandpass Biomedical Color Filter Based on 1-D Photonic Crystal Structure

Subject Areas : Nano Biophotonics

Hamed Alipour-Banaei ¹ , Navvab Khorrammaslack ²

1 - Department of Electronics, Tabriz Branch, Islamic Azad University, Tabriz, Iran.
2 - Department of Electrical Engineering, Ahar Branch, Islamic Azad University, Ahar, Iran

Received: 2021-05-16 Accepted : 2021-12-26 Published : 2021-07-01

Keywords: Photonic Crystal, color filter, Photonic Band Gap, RGB Colors, Biomedical Systems,

Abstract :

We propose a flexible design for tunable bandpass biomedical color filter based on one-dimensional photonic crystals with introducing defect layers into one dimensional periodic structure which permits localized modes to exist with frequency inside photonic band gap (PBG). In the proposed structure we can tune localized modes for manifesting different colors by selecting a specific wavelength in the visible light spectrum and also we tuned localized modes in PBG for RGB wavelengths applicable in biomedical systems. With changing the defect layer refractive index, the tuning of the frequency has been done and therefore this structure is suitable for optical biomedical bandpass filter.

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