A high Q-factor photonic crystal microring-resonator based pressure sensor

Kolli, Venkateswara Rao; Bahaddur, Indira; Basavaprasad,; Dudla, Prabhakar; Talabattulac, Srinivas

doi:10.1016/j.photonics.2020.100870

Cited by 9 publications

(1 citation statement)

References 6 publications

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“…The growing demand for optical sensing applications has raised the significance of PhC-based optical technologies. Due to the PBG property and the light confinement capability of the PhC-based structures, PhCs and their applications in healthcare, 116 – 120 RI sensing, 121 – 124 quality control of food, 125 – 128 and in many other fields 129 – 132 is now the sphere of interest for researchers in the present era (Table 3).…”

Section: Applications Of Phcmentioning

confidence: 99%

Fabrication techniques and applications of two-dimensional photonic crystal: history and the present status

2022

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The idea of photonic crystal came to be when E. Yablonovitch and S. John recommended a structure in 1987 having periodic alteration of refractive index in one or multiple directions. Photonic crystals have the potential to manipulate and tailor the flow of light across the crystal, which gives advantage to invent many photonic devices on the microscopic scale having very small footprints. In recent years several articles have been published on the advances of photonic crystal-based structures. This review article mainly focuses on the several fabrication techniques of photonic crystals and their applications in different fields. Several photonic crystalbased structures such as logic gates, optical sensors, polarization beam splitters, and absorbers for solar cells are reviewed in this paper to show recent advancements on this trending topic. Also, a brief review of the different steps of fabrication of photonic crystals and different fabrication methods proposed by researchers is articulated in this paper.

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Section: Applications Of Phcmentioning

confidence: 99%

Fabrication techniques and applications of two-dimensional photonic crystal: history and the present status

2022

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Highly sensitive refractive index sensor based on photonic crystal ring resonators nested in a Mach–Zehnder interferometer

Nohoji

Danaie²

2022

Opt Quant Electron

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Today, with the rapid development of photonics, optical sensors are being considered as e cient tools for detecting environmental variations and have been regarded as one of the most important elds in photonic research. In this study, we have proposed a two-dimensional photonic crystal (2D-PC) refractive index sensor using a combination of Mach-Zehnder interferometers and two ring resonators. Our goal is to increase the sensitivity and gure of merit (FOM) of the sensor, so that the output transmission spectrum can be considerably shifted by changing the refractive index of the simulated analytes. The proposed photonic crystal sensor consists of a hexagonal array of silicon rods on a SiO 2 substrate. The nite difference time domain (FDTD) method is used for the numerical simulation of the structure. In this regard, to validate the simulation results, two different commercial software have been used. The qualityfactor (Q-factor) and the sensitivity of the proposed structure are more than 1600 and 1700 nm / RIU, respectively, where RIU stands for the refractive index unit. In general, the structure has advantages such as low fabrication cost, high sensitivity to changes in refractive index and a high Q-factor.

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2D Photonic-Crystal Hexagonal Resonator for Albumin Concentration Detection in Urine

Basavaprasad,

Kolli

2024

2024 5th International Conference on Intelligent Communication Technologies and Virtual Mobile Networks (ICICV)

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A high Q-factor photonic crystal microring-resonator based pressure sensor

Cited by 9 publications

References 6 publications

Fabrication techniques and applications of two-dimensional photonic crystal: history and the present status

Fabrication techniques and applications of two-dimensional photonic crystal: history and the present status

Highly sensitive refractive index sensor based on photonic crystal ring resonators nested in a Mach–Zehnder interferometer

2D Photonic-Crystal Hexagonal Resonator for Albumin Concentration Detection in Urine

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