Enhanced absorption in a graphene embedded 1D guided-mode-resonance structure without back-reflector and interferometrically written gratings

• Main Authors: Sahoo, Pankaj Kumar, Pae, Jian Yi, Murukeshan, Vadakke Matham
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics; Absorption Spectroscopy; Bragg Reflectors
• Online Access: https://hdl.handle.net/10356/141607
• Institution: Nanyang Technological University

A theoretical model based on the coupled mode theory is presented to calculate the absorption in a graphene embedded 1D guided-mode-resonance (GMR) structure that does not require a back reflector. The optimized graphene-GMR structure can absorb up to 70% of the incident light which far exceeds the...