https://doi.org/10.1140/epjd/s10053-022-00409-3
Regular Article – Optical Phenomena and Photonics
Goos–Hänchen shift observed from stratified medium
1
Department of Electrical and Computer Engineering, COMSATS University, 45550, Islamabad, Pakistan
2
Department of Electronics, Quaid-i-Azam University, 45320, Islamabad, Pakistan
a
sp16-pee-004@isbstudent.comsats.edu.pk
Received:
3
February
2022
Accepted:
26
April
2022
Published online:
12
May
2022
In this paper, we have theoretically examined Goos–Hänchen shift (GHS) obtained from a stratified epsilon-near-zero (ENZ) medium placed in air. Transfer matrix method is used to calculate GHS for a sandwich structure composed of odd number of slabs. The impact of changing the material permittivity, thickness and number of slabs on GHS is discussed in detail for TE and TM polarized light. Significant increase in GHS is observed as the number of ENZ slabs in stratified structure is increased. When all the slabs have equal permittivity, published results for a single ENZ slab are recovered. The presented work will help in designing stratified ENZ medium with required GHS and reflectivity for optical sensors.
Key words: Goos–Hänchen shift (GHS) / Epsilon-near-zero (ENZ) / Transfer matrix method (TMM)
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2022
