We study criCtical coupling at oblique incidence and show the suppression of both reflection and transmission in a multilayered system having a two-component metal-dielectric composite film as the top layer. Almost total absorption of the incident electromagnetic energy in the composite film is shown to be possible for both TE and TM polarization of the incident light. Moreover, the scattering profiles for the TM polarization exhibit additional resonances which can be ascribed to the excitation of the bulk plasmons in the composite film. © IOP Publishing Ltd.

Shourya Dutta Gupta

Department of Materials Science and Metallurgical Engineering

S. Deb

J. Banerji

S.D. Gupta

Indian Institute of Technology Hyderabad (IITH) is a premier institute of science and technology established in 2008. IITH has been consistently ranked in the&nbsp;<a href="https://iith.ac.in/reports/" rel="noopener noreferrer">top 10 institutes</a>&nbsp;in India for Engineering&nbsp;<a href="https://www.nirfindia.org/2021/EngineeringRanking.html" rel="noopener noreferrer" target="_blank">according to NIRF</a>&nbsp;making it one of the most coveted schools for science and technology in the country.

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Journal	Journal of Optics A: Pure and Applied Optics
ISSN	14644258