Article ID Journal Published Year Pages File Type
7932904 Photonics and Nanostructures - Fundamentals and Applications 2015 6 Pages PDF
Abstract
Sensitivities (S) and quality factors (Q) have been trade-offs in optical resonator sensors, and optimal geometry that maximizes both factors is under active development. In this paper, we experimentally demonstrate an optical sensor based on photonic crystal (PhC) nanoslotted parallel quadrabeam integrated cavity (NPQIC) with high figure of merit (FOM). Both high sensitivity (S) of 451 nm/RIU (refractive index unit) and Q-factor >7000 in water at telecom wavelength range have been achieved simultaneously, which features a sensor figure of merit (FOM) >2000, an order of magnitude improvement over previous photonic crystal sensors.
Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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