Taking detection to the limit with optical microcavities: Recent advances presented at the 560. WE Heraeus Seminar

Vollmer, Frank; Schwefel, Harald G. L.

doi:10.1140/epjst/e2014-02271-2

Cited by 3 publications

(2 citation statements)

References 117 publications

(144 reference statements)

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“…Limit of detection (LOD) is one of the indicators to evaluate the performance of microring configuration in sensing application. LOD can be described as the minimum detectable change (Guider et al, 2015), which is directly related to free spectral range (FSR) (Vollmer & Schwefel, 2014). FSR can be interpreted as the distance between two adjacent peaks (Bogaerts et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Enhanced Optical Free Spectral Range Through Integrated Fano-Microring Configuration

Hairol Aman,

Noorden,

Ahmad Fajri

et al. 2023

MJS

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A numerical analysis of the integrated Fano-microring (IFM) racetrack resonator spectrum was performed to investigate the enhancement of the optical system’s free spectral range (FSR). The FSR is an important optical property which can contribute to the high sensitivity of optical devices. The IFM refers to the combination of Fano resonance produced in the output spectrum through the interaction of Fabry–Perot resonance and circulation resonance. This work focuses on the study of inducing Fano resonance in the microring resonator to optimize the FSR of the system. The results show that the integration of two resonances can produce a Vernier output spectrum, which significantly enhanced the FSR of the system without any need for additional ring waveguides. This work also compared the IFM resonance with the conventional microring resonance. In this simulation, the optimized FSR obtained by the IFM configuration was 266.55 nm, which is five times higher than the conventional microring configuration.

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Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Enhanced Optical Free Spectral Range Through Integrated Fano-Microring Configuration

Hairol Aman,

Noorden,

Ahmad Fajri

et al. 2023

MJS

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“…113 Purely dielectric WGM resonators have been investigated in detail over the last decade. 2,7,11,28,29,96,[114][115][116][117][118][119][120][121] The most influential papers on WGM single particle detection are analyzed in Table 2, where we report the principal parameters of the involved structures and their detection capabilities.…”

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confidence: 99%

Hybrid plasmonic–photonic whispering gallery mode resonators for sensing: a critical review

Bozzola

Perotto

Angelis

2017

Analyst

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Integrating Vernier spectrum with Fano resonance for high sensitivity of an all-optical sensor

Aman

Noorden²,

Fajri³

et al. 2022

J Comput Electron

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Vernier and Fano resonances are promising approaches for enhancing the sensitivity of an alloptical sensor. A theoretical analysis was performed to integrate a Fano-like resonance shape with a Vernier resonance by considering the presence of partial reflective end facets at a double microring resonator waveguide. The system was developed based on scattering matrix and optical transfer function. The double and all-pass racetrack microring configurations were compared with and without the end facet at the waveguide to analyze the dynamic change of the output resonance spectrum. The spectrum were analyzed based on the free spectral range and resonance pattern. The resonator systems were applied to refractive index-based sensing protocol, which was operated by a shift of resonance wavelength with a change of refractive index. The sensitivity was optimized by varying the configuration parameters such as the radius of the ring, the distance between end facet, and the coupling coefficients. Integrating Vernier spectrum with Fano resonance improved the sensitivity for all-pass racetrack configuration by 5.16 % and the sensitivity for double racetrack configuration by 6.31 %. The recorded limit of detection (LOD) of double racetrack was 3.30 × 10 -5 .

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Taking detection to the limit with optical microcavities: Recent advances presented at the 560. WE Heraeus Seminar

Cited by 3 publications

References 117 publications

Numerical Simulation of Enhanced Optical Free Spectral Range Through Integrated Fano-Microring Configuration

Numerical Simulation of Enhanced Optical Free Spectral Range Through Integrated Fano-Microring Configuration

Hybrid plasmonic–photonic whispering gallery mode resonators for sensing: a critical review

Integrating Vernier spectrum with Fano resonance for high sensitivity of an all-optical sensor

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