Generation of lossy mode resonances in a broadband range with multilayer coated coverslips optimized for humidity sensing

Bohorquez, Dina L.; Villar, Ignacio Del; Corres, Jesús M.; Matı́as, Ignacio R.

doi:10.1016/j.snb.2020.128795

Cited by 16 publications

(13 citation statements)

References 32 publications

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“…Therefore, sensors based on the phase detection of waves supported by a 1DPhC are feasible [ 22 , 23 , 24 , 25 , 26 , 27 ]. In addition, they represent an alternative to relative humidity sensors based on resonances of surface plasmons [ 16 ], BSWs [ 16 ], whispering gallery modes [ 28 ], guided modes [ 4 , 7 , 29 ], photonic crystal modes [ 30 ], and lossy modes [ 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

Efficient Optical Sensing Based on Phase Shift of Waves Supported by a One-Dimensional Photonic Crystal

Kaňok

Hlubina

Gembalová

et al. 2021

Sensors

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Interferometric methods of optical sensing based on the phase shift of the Bloch surface waves (BSWs) and guided waves (GWs) supported by a one-dimensional photonic crystal are presented. The photonic crystal, composed of six SiO2/TiO2 bilayers with a termination layer of TiO2, is employed in the Kretschmann configuration. Under resonance condition, an abrupt phase change is revealed, and the corresponding phase shift is measured by interferometric techniques applied in both the spectral and spatial domains. The spectral interferometric technique employing a birefringent quartz crystal is used to obtain interference of projections of p- and s-polarized light waves reflected from the photonic crystal. The phase shifts are retrieved by processing the spectral interferograms recorded for various values of relative humidity (RH) of air, giving the sensitivity to the RH as high as 0.029 rad/%RH and 0.012 rad/%RH for the BSW and GW, respectively. The spatial interferometric technique employs a Wollaston prism and an analyzer to generate an interference pattern, which is processed to retrieve the phase difference, and results are in good agreement with those obtained by sensing the phase shift in the spectral domain. In addition, from the derivative of the spectral phase shifts, the peak positions are obtained, and their changes with the RH give the sensitivities of 0.094 nm/%RH and 0.061 nm/%RH for the BSW and GW, respectively. These experimental results demonstrate an efficient optical sensing with a lot of applications in various research areas.

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Section: Introductionmentioning

confidence: 99%

Efficient Optical Sensing Based on Phase Shift of Waves Supported by a One-Dimensional Photonic Crystal

Kaňok

Hlubina

Gembalová

et al. 2021

Sensors

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“…In fact, the sensitivity to humidity was improved by more than a factor of two. The sensitivity of this sensor was later optimized with an additional layer of agarose, permitting the observation of a 10-fold sensitivity increase compared to the same device without agarose [ 89 ].…”

Section: Humidity Sensorsmentioning

confidence: 99%

Fiber Optic Gas Sensors Based on Lossy Mode Resonances and Sensing Materials Used Therefor: A Comprehensive Review

Vitoria

Zamarreño

Ozcáriz

et al. 2021

Sensors

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Pollution in cities induces harmful effects on human health, which continuously increases the global demand of gas sensors for air quality control and monitoring. In the same manner, the industrial sector requests new gas sensors for their productive processes. Moreover, the association between exhaled gases and a wide range of diseases or health conditions opens the door for new diagnostic applications. The large number of applications for gas sensors has permitted the development of multiple sensing technologies. Among them, optical fiber gas sensors enable their utilization in remote locations, confined spaces or hostile environments as well as corrosive or explosive atmospheres. Particularly, Lossy Mode Resonance (LMR)-based optical fiber sensors employ the traditional metal oxides used for gas sensing purposes for the generation of the resonances. Some research has been conducted on the development of LMR-based optical fiber gas sensors; however, they have not been fully exploited yet and offer optimal possibilities for improvement. This review gives the reader a complete overview of the works focused on the utilization of LMR-based optical fiber sensors for gas sensing applications, summarizing the materials used for the development of these sensors as well as the fabrication procedures and the performance of these devices.

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“…The generation of LMRs using a metal oxide thin film that is deposited on optical fiber has been the subject of studies because resonance is generated for both TE (transverse electric) and TM (transverse magnetic) polarized light, so multiple resonances can be excited. The LMR wavelength can be tuned in the optical spectrum, so LMR-based optical fiber sensors can be used to detect the refractive index [12], humidity [13], chemicals [14], biological species [15], and pressure [16].…”

Section: Introductionmentioning

confidence: 99%

Subtle Application of Electrical Field-Induced Lossy Mode Resonance to Enhance Performance of Optical Planar Waveguide Biosensor

Lin

Chen

2021

Biosensors

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Many studies concern the generation of lossy mode resonances (LMRs) using metallic oxide thin films that are deposited on optical fiber. However, the LMR-based optical fiber sensors are frangible, do not allow easy surface modification, and are not suited to mass production. This study proposes an electrical field-induced LMR-based biosensor with an optical planar waveguide to replace surface modification and allow the mass production of protein biosensors and accelerate the speed of the analyte to decrease the detection time. Experimentally, the biosensor is evaluated using charged serum albumin molecules and characterized in terms of the LMR wavelength shift using an externally applied voltage for different durations. The externally applied voltage generates a significant electric field, which drives the non-neutralized biomolecules and increases the LMR wavelength shift. Our experimental results demonstrate that there are two different mechanisms of adsorption of serum albumin molecules for short-term and long-term observations. These are used to calculate the sensitivity of the biosensor. This electrical field-induced method is highly significant for the development and fabrication of LMR-based biosensors.

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Generation of lossy mode resonances in a broadband range with multilayer coated coverslips optimized for humidity sensing

Cited by 16 publications

References 32 publications

Efficient Optical Sensing Based on Phase Shift of Waves Supported by a One-Dimensional Photonic Crystal

Efficient Optical Sensing Based on Phase Shift of Waves Supported by a One-Dimensional Photonic Crystal

Fiber Optic Gas Sensors Based on Lossy Mode Resonances and Sensing Materials Used Therefor: A Comprehensive Review

Subtle Application of Electrical Field-Induced Lossy Mode Resonance to Enhance Performance of Optical Planar Waveguide Biosensor

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