Highly efficient elliptical microcavity refractive index sensor with single detection unit

Journal Article · Fri Mar 15 00:00:00 EDT 2019 · Optical and Quantum Electronics

DOI:https://doi.org/10.1007/S11082-019-1804-1· OSTI ID:22950351

Vakili, Mahsa; Noori, Mina ^[1]

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1. Sahand University of Technology, Department of Electrical Engineering (Iran, Islamic Republic of)

Here, an elliptical cavity is investigated in its vertical and horizontal arrangement as a single detection unit in a 2D hexagonal hole-type photonic crystal. The Q-factors are 3700, and 2600 for vertical and horizontally arranged cavities, respectively. The notable characteristic of the presented sensor is mainly its large detection range for refractive indices in range of n = 1 to over 2. The operation of the sensor can be divided into two distinct detection regions in separate spectra located next to lower and higher edges of photonic band gap. The design of cavities and their sensing characteristics are discussed in detail for each topology using FDTD and PWE methods.

• OSTI ID: 22950351
• Journal Information: Optical and Quantum Electronics, Vol. 51, Issue 3; Other Information: Copyright (c) 2019 Springer Science+Business Media, LLC, part of Springer Nature; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); ISSN 0306-8919
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CRYSTALS
DESIGN
DETECTION
REFRACTIVE INDEX
SENSITIVITY
SENSORS
SPECTRA
TOPOLOGY