Ardhendu Saha

The presented proposal focuses on a magneto-optically engineered multilayered structure enabling polarization conservation and magnetic-field-induced tunability of reflected light at 1550 nm. A ZnSe prism, a synthesized ${\rm SiN}_{x}$ dielectric, and a Ce:YIG magneto-optic layer form the design, optimized to support total internal reflection with conserved polarization at 67.53°.

Abstract With the experimental corroboration employing a transfer matrix method, an analytical observation of optical bistability using long-range surface plasmon resonance (LRSPR) through the external magnetic field is presented for a very low threshold value. The proposed analytical method has been verified with the reported experimental data provided by Liu et al. [Curr. Appl. Phys. 29, 66 (2021) [CrossRef] ].

Abstract With the establishment of validity using authoritative experimental results, an analytical investigation of an SPR-based fiber optic sensor, employing a wave-theory-based technique for determining breast cancer by shining a radially polarized Bessel–Gauss (RPBG) beam, is proposed. First, by using a radially polarized Gaussian (RPG) beam, the observed sensitivity is 9404.61 dB/RIU, where the acquired results are in good concurrence with the experimental data reported by Yan et al. [Chin.