Design of optical splitter using ion-exchange method for DNA bio-sensor

Amiri, Iraj Sadegh; Ariannejad, M.M.; Ali, J.; Yupapin, P.

doi:10.1016/j.jksus.2018.03.012

Cited by 5 publications

(3 citation statements)

References 32 publications

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“…For some excellent review papers on diverse processes and ion exchange models, please consult [133,134]. Several research groups fabricated ion-exchange WGs for different purposes such as all-opticalswitching and sensing [135][136][137][138]. To attain a symmetrical mode field and thus an optimum fit to the modal field of input/output fibers, the burial channel WGs are of particular interest.…”

Section: Ion Exchange Processmentioning

confidence: 99%

Optical Thin Films Fabrication Techniques—Towards a Low-Cost Solution for the Integrated Photonic Platform: A Review of the Current Status

et al. 2022

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In the past few decades, several methods concerning optical thin films have been established to facilitate the development of integrated optics. This paper provides a brief depiction of different techniques for implementing optical waveguide thin films that involve chemical, physical, and refractive index modification methods. Recent advances in these fabrication methods are also been presented. Most of the methods developed for the realization of the thin-films are quite efficient, but they are expensive and require sophisticated equipment. The major interest of the scientists is to develop simple and cost-effective methods for mass production of optical thin films resulting in the effective commercialization of the waveguide technology. Our research group is focused on developing a silica-titania optical waveguide platform via the sol-gel dip-coating method and implementing active and passive optical elements via the wet etching method. We are also exploring the possibility of using nanoimprint lithography (NIL) for patterning these films so that the fabrication process is efficient and economical. The recent developments of this platform are discussed. We believe that silica-titania waveguide technology developed via the sol-gel dip-coating method is highly attractive and economical, such that it can be commercialized for applications such as sensing and optical interconnects.

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Section: Ion Exchange Processmentioning

confidence: 99%

Optical Thin Films Fabrication Techniques—Towards a Low-Cost Solution for the Integrated Photonic Platform: A Review of the Current Status

et al. 2022

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“…In micro-optofluidic devices, in order to deliver, as close as possible, the input light to the sample or a specific chip section and, collect the output signal, it is necessary to miniaturize optical components [3]. Integration of optical components in a single device allows a rapid investigation of biological and chemical samples [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Micro-Optical Waveguides Realization by Low-Cost Technologies

Cairone

Afflitto

Stella

et al. 2022

Micro

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Microscale optofluidic devices are a category of microscale devices combining fluidic and optical features. These devices typically enable in-situ fluid flow measurement for pharmaceutical, environmental or biomedical applications. In micro-optofluidic devices, in order to deliver, as close as possible, the input light to the sample or a specific chip section and, collect the output signal, it is necessary to miniaturize optical components. In this paper, two low-cost technologies, 3D Printing PDMS-based and laser cutting PMMA-based (PDMS stands for Poly-dimethyl-siloxane and PMMA for Poly-methyl-methacrylate), were investigated as novel methods to realize micro-optical waveguides (μWGs) comparing their performances. An ad-hoc master-slave protocol developed to realize PDMS components by 3D Printing has been fully optimized. The manufacturing technologies proposed require simple and low-cost equipment and no strictly controlled environment. Similar results are obtained for both the micro-optical waveguides realized. Their losses, disregarding the losses caused by the fibers’ alignment and the miss-match of the geometry with the waveguide, are of the order of 20%, almost equivalent for both approaches (PDMS-μWG and PMMA-μWG). The losses are of the order of 10% when the PDMS-μWG is shielded by a copper layer, with a significant improvement of the signal acquired. The results obtained show the possibility of using the two low-cost technologies presented for the realization of micro-optical waveguides suitable to be integrated in micro-optofluidic devices and the potential of creating micro-optical paths inside micro-embedded systems.

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“…Recent years have seen a significant increase in the use of PC sensors based on RI modifications in a variety of architectures. [19][20][21][22] The property of the shift in wavelength with a change in RI's value associated with the defecting layer, also known as hollow cavity medium, is defined by the PC-based analyte sensors. [23,24] There is a noticeable resonant wavelength shift that can be seen when the PC cavity's RI varies slightly.…”

mentioning

confidence: 99%

A Theoretical Approach for Detecting the Chikungunya Virus Based on 1D Photonic Crystals

Kathiresan

Ramanujam²,

Poovendran³

et al. 2023

Physica Status Solidi (a)

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The Current study aims at using defective 1D photonic crystals to detect the Chikungunya virus in various healthy and diseased blood samples composed of plasma, platelets, red blood cells, and uric acid. The proposed PC structure has 14 periods and consists of repeating SiC and SiO2 layers with a central cavity layer. When blood samples are injected into the cavity layer, the transmittance spectrum is examined theoretically by using a transfer matrix approach to determine how the wavelength of the defect mode changes. The cavity layer is 540 nm and 648 nm thick, and the work has been carried out at different angles of incidence. The performance of the sensor is quantified by computing the sensitivity, figure of merit, quality factor, and limit of detection values of the sensor for various blood samples. The maximum sensitivity is 1205.5 nm/RIU and detection limits of the order is 10‐6 in this prosped work. A lower value of SR of 0.01218 is also achieved. Such a high‐performance sensor is suitable for biosensing applications with better sensing capabilities.This article is protected by copyright. All rights reserved.

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Design of optical splitter using ion-exchange method for DNA bio-sensor

Cited by 5 publications

References 32 publications

Optical Thin Films Fabrication Techniques—Towards a Low-Cost Solution for the Integrated Photonic Platform: A Review of the Current Status

Optical Thin Films Fabrication Techniques—Towards a Low-Cost Solution for the Integrated Photonic Platform: A Review of the Current Status

Micro-Optical Waveguides Realization by Low-Cost Technologies

A Theoretical Approach for Detecting the Chikungunya Virus Based on 1D Photonic Crystals

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