Planar asymmetric nano-resonators for highly angle tolerant trans-reflective color filters

Noha Anous, Tarek Ramadan, Mohamed Abdallah, Khalid Qaraqe, Diaa Khalil

Research output: Contribution to journalArticle

Abstract

This work presents a technique for the design of trans-reflective optical color filters employing a hybrid plasmonic nano-resonator with a dielectric cavity. The proposed filters exhibit wide-angle operation. They offer almost an omnidirectional field-of-view (FOV) (0°∼70°), an essential feature for light collection in miniaturized devices. Moreover, the proposed filters exhibit relatively high transmission and reflection (80%–92%) with at least a 14.3% enhancement than presented in literature. Moreover, the proposed filters are polarization independent manifesting a polarization dependent loss (PDL) of (−0.17 to −0.5 dB) at angle of incidence (AOI) of 70°. Variations in design parameters are introduced to evaluate the equivalent filters performances. Design rules of the filter are presented with physical justifications of the obtained performance curves, hence deducing design guidelines for the proposed color filters that may be further applied in infrared (IR) spectral region.

Original languageEnglish
Pages (from-to)890-904
Number of pages15
JournalOSA Continuum
Volume2
Issue number3
DOIs
Publication statusPublished - 15 Mar 2019

Fingerprint

Resonators
resonators
Color
color
filters
Polarization
Infrared radiation
polarization
field of view
incidence
cavities
augmentation
curves

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

Cite this

Planar asymmetric nano-resonators for highly angle tolerant trans-reflective color filters. / Anous, Noha; Ramadan, Tarek; Abdallah, Mohamed; Qaraqe, Khalid; Khalil, Diaa.

In: OSA Continuum, Vol. 2, No. 3, 15.03.2019, p. 890-904.

Research output: Contribution to journalArticle

Anous, Noha ; Ramadan, Tarek ; Abdallah, Mohamed ; Qaraqe, Khalid ; Khalil, Diaa. / Planar asymmetric nano-resonators for highly angle tolerant trans-reflective color filters. In: OSA Continuum. 2019 ; Vol. 2, No. 3. pp. 890-904.
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