A microstructured wavefront filter for the DARWIN nulling interferometer

Flanagan, J.; Richardson, David J.; Foster, Michael J.; Bakalski, Ivelin

doi:10.1117/12.2308141

Cited by 1 publication

(1 citation statement)

References 17 publications

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“…unlike regular single mode fibers, which turn into multimode 2024, 21(2): 0445-0456 https://doi.org /10.21123/bsj.2023.7651 P-ISSN: 2078-8665 -E-ISSN: 2411 Baghdad Science Journal below the singlemode cutoff wavelength of each, photonic crystal fibers have the unusual ability to remain single-mode across a large wavelength range. One form of PCF with this capability is the endlessly single-mode fiber (ESM-12) Solid Core Photonic crystal fiber a typical PCF 6 . PCFs are divided into two categories depending on their light-guiding mechanisms: solid core photonic crystal fibers (SC-PCFs), which use a Modified Total Internal Reflection (MTIR) and hollow core photonic crystal fibers (HC-PCFs) which use the Photonic Band Gap (PBG) effect 7 .…”

Section: Introductionmentioning

confidence: 99%

Estimating concentration of toxic ions Arsenic in water by using Photonic Crystal Fiber based on Surface Plasmon Resonance (SPR)

Jassam

Ahmed²

2023

Baghdad Sci.J

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In this work, an enhanced Photonic Crystal Fiber (PCF) based on Surface Plasmon Resonance (SPR) sensor using a sided polished structure for the detection of toxic ions Arsenic in water was designed and implemented. The SPR curve can be obtained by polishing the side of the PCF after coating the Au film on the side of the polished area, the SPR curve can be obtained. The proposed sensor has a clear SPR effect, according to the findings of the experiments. The estimated signal to Noise Ratio (SNR), sensitivity (S), resolution (R), and Figures of merit (FOM) are approaching; the SNR is 0.0125, S is 11.11 μm/RIU, the resolution is 1.8x〖10〗^(-4), and the FOM is 13.88 for Single-mode Fiber- Photonic Crystal Fiber- single mode Fiber (SMF-PCF-SMF). While the effective performance parameters for Multi-Mode Fiber- Photonic Crystal Fiber- Multi-Mode Fiber (MMF-PCF-MMF) such as the sensitivity is approaching 9.5 μm/RIU, SNR is 0.0173, FOM is10.86 and the resolution is 4x〖10〗^(-4) is achieved. The concentrations were calculated practically and theoretically for each of the sensors, and it was found that the practical concentrations that were obtained are close or equal to the concentrations that were theoretically obtained through the dilution law, where the concentrations were obtained 0.096, 0.15, 0.26, 0.38, 0.49 practically and 0.1, 0.2 and 0 3, 0.4 and 0.5 theoretically For SMF-PCF-SMS, concentrations of 0.089, 0.16, 0.23, 0.34, and 0.45 were practically obtained, and 0.1, 0.2, 0.3, 0.4, and 0.5 theoretically for MMF-PCF-MMF. The suggested sensor has a strong mechanical structure, low cost, and easy fabrication, allowing it to provide a greater measurement range and action area to the measured samples without lengthening the sensor.

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Section: Introductionmentioning

confidence: 99%