Infrared Polaritonic Biosensors Based on Two-Dimensional Materials

Abstract

In recent years, polaritons in two-dimensional (2D) materials have gained intensive research interests and significant progress due to their extraordinary properties of light-confinement, tunable carrier concentrations by gating and low loss absorption that leads to long polariton lifetimes. With additional advantages of biocompatibility, label-free, chemical identification of biomolecules through their vibrational fingerprints, graphene and related 2D materials can be adapted as excellent platforms for future polaritonic biosensor applications. Extreme spatial light confinement in 2D materials based polaritons supports atto-molar concentration or single molecule detection. In this article, we will review the state-of-the-art infrared polaritonic-based biosensors. We first discuss the concept of polaritons, then the biosensing properties of polaritons on various 2D materials, then lastly the impending applications and future opportunities of infrared polaritonic biosensors for medical and healthcare applications.

Raman spectrum of MXene Ti2C under planar symmetrical strain: First‐principles calculations

“…The discovery of graphene by Novoselov and Geim in 2004 brought the study of two-dimensional (2D) materials to the forefront of technological and scientific research. [1] Graphene and other 2D van der Waals (vdW) [2][3][4] materials (e.g., BN, WSe 2 , and MoS 2 ) have shown potential applications in energy storage [5] and sensors, [6][7][8] owing to their excellent properties, such as remarkable electronic and mechanical properties, [9,10] tremendous surface-to-volume ratio, [11] outstanding thermal conductivity, [12,13] and so on. Recently, a new 2D Mingquan Ding and Huijun Liu are contributed equally.…”

Research on sensing characteristics of third‐order runway series symmetric microring resonator based on hybrid plasma waveguide and metal insulator metal

“…They can break through the diffraction limit in traditional photonic devices and reduce the transmission loss, making it possible to combine the advantages of photons and electrons and integrate them into the chip. It has been widely used in biosensor [21][22][23][24][25], integrated optical path devices [26], sub-diffracting limit imager [27], Mach-Zehnder interferometer [28], and other devices. In a series of waveguide designs, SPPs structures containing metallic materials can achieve good light transmission in the subwavelength range.…”