High performance mid infrared temperature sensor based on resonance excitation of hybrid Tamm surface states

Kumar, Mahendra; Prasad, Surendra

doi:10.1016/j.optmat.2022.112586

Cited by 3 publications

(1 citation statement)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, BSWs show dramatically enhanced propagation lengths up to the millimeter range [15]. Moreover, the dispersion of optical Tamm states can be designed at almost any wavelength by properly choosing the refractive index and thickness of the including layers, which can adopt and improve biosensing techniques for MIR applications [16]. However, metals are hampered by the high damping rate of the free electrons, which limit its applicability to subwavelength optics at MIR frequencies [17,18].…”

Section: Introductionmentioning

confidence: 99%

Actively tunable weak and strong couplings in epsilon-near-zero ultrathin film-based Weyl semimetallic photonic crystals

Sun¹,

Qian²,

Ye³

et al. 2023

J. Opt.

View full text Add to dashboard Cite

Lithography-free layered dielectric media play an important role in photonic platforms and open up new possibilities in the design of devices with large-scale compatibilities. In this work, we propose a hybrid structure consisting of phononic thin layer and Weyl semimetallic photonic crystals (WSMPhCs). Manipulation of electromagnetic (EM) waves and the interactions between different optical modes are presented, which is highly demanded for both fundamental research and practical applications. The weak and strong coupling effects result in hybrid polariton modes, of which the dispersion can be quantitatively described by a coupled harmonic oscillator (CHO) model. In the Kretschmann coupling proposal, when the incident angle is smaller than the critical angle ($\theta_c$=25$^{\circ}$) of total internal reflection, a weak coupling is generated. However, when the incident angle is larger than $\theta_c$, anticrossing resluts from strong coupling can be observed. We believe that the use of easily manufactured WSM elements and the tunable hybridization of multiple optical modes will enable the manipulation of light-matter interactions with more flexibility in the mid-infrared (MIR) range, and can significantly improve the functional properties of various devices.

show abstract