Ultra-Sensitive Refractive Index Sensors Based on Bloch Surface Waves With Transition Metal Dichalcogenides

Gan, Shuaiwen; Wang, Haiqi; Liang, Junwu; Dai, Xiaoyu; Xiang, Yuanjiang

doi:10.1109/jsen.2019.2922966

Cited by 27 publications

(13 citation statements)

References 32 publications

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“…The 1DPhCs can also act as planar waveguides [ 4 ] and the guided waves (GWs) can be used in sensing applications [ 5 , 6 , 7 ]. Last but not the least, the Bloch surface waves (BSWs) propagating along the interface of the 1DPhC with an external medium are widely used in sensing, including the angular [ 8 , 9 , 10 , 11 ] or wavelength [ 12 , 13 , 14 , 15 , 16 , 17 ] interrogations. Thus, the BSW-based sensors extend mature technologies applied in sensing that have several applications in different fields of biology [ 18 ], physics [ 18 ], and chemistry [ 18 , 19 , 20 , 21 ].…”

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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show abstract

“…Because of the dielectric materials of the photonic crystal, sensors based on BSWs are characterized by mechanical and chemical stability, thus enabling operation in aggressive environments. Consequently, BSWs have emerged as an effective alternative to SPPs [ 43 , 58 ] and have been utilized in a number of BSW based sensors [ 37 , 38 , 39 , 40 , 41 , 42 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 ], especially in biosensing [ 37 , 38 , 39 , 40 , 41 , 42 ]. Similarly to SPR based sensors, Bloch surface wave resonance (BSWR) based sensing is with a special emphasis on the measured quantity such as phase [ 46 , 47 , 48 , 49 ] or intensity [ 50 , 51 , 52 , 53 , 59 , 60 , 61 , 62 , 63 ].…”

Section: Introductionmentioning

confidence: 99%

“…Similarly to SPR based sensors, Bloch surface wave resonance (BSWR) based sensing is with a special emphasis on the measured quantity such as phase [ 46 , 47 , 48 , 49 ] or intensity [ 50 , 51 , 52 , 53 , 59 , 60 , 61 , 62 , 63 ]. In addition, the angular [ 47 , 48 , 49 , 50 , 51 , 52 , 53 , 60 ] or the wavelength interrogations [ 46 , 61 , 62 , 63 , 64 , 65 , 66 ] have been employed. Similarly to the SPR based fiber optic sensors, fiber sensors with MDSs have been reported [ 67 , 68 , 69 , 70 ], and MDSs have been deposited on a tapered fiber [ 67 ] or on the outer surface of optical fiber [ 68 ].…”

Section: Introductionmentioning

confidence: 99%

Bloch Surface Wave Resonance Based Sensors as an Alternative to Surface Plasmon Resonance Sensors

Gryga

Ciprián

Hlubina

2020

Sensors

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We report on a highly sensitive measurement of the relative humidity (RH) of moist air using both the surface plasmon resonance (SPR) and Bloch surface wave resonance (BSWR). Both resonances are resolved in the Kretschmann configuration when the wavelength interrogation method is utilized. The SPR is revealed for a multilayer plasmonic structure of SF10/Cr/Au, while the BSWR is resolved for a multilayer dielectric structure (MDS) comprising four bilayers of TiO2/SiO2 with a rough termination layer of TiO2. The SPR effect is manifested by a dip in the reflectance of a p-polarized wave, and a shift of the dip with the change in the RH, or equivalently with the change in the refractive index of moist air is revealed, giving a sensitivity in a range of 0.042–0.072 nm/%RH. The BSWR effect is manifested by a dip in the reflectance of the spectral interference of s- and p-polarized waves, which represents an effective approach in resolving the resonance with maximum depth. For the MDS under study, the BSWRs were resolved within two band gaps, and for moist air we obtained sensitivities of 0.021–0.038 nm/%RH and 0.046–0.065 nm/%RH, respectively. We also revealed that the SPR based RH measurement is with the figure of merit (FOM) up to 4.7 × 10−4 %RH−1, while BSWR based measurements have FOMs as high as 3.0 × 10−3 %RH−1 and 1.1 × 10−3 %RH−1, respectively. The obtained spectral interferometry based results demonstrate that the BSWR based sensor employing the available MDS has a similar sensitivity as the SPR based sensor, but outperforms it in the FOM. BSW based sensors employing dielectrics thus represent an effective alternative with a number of advantages, including better mechanical and chemical stability than metal films used in SPR sensing.

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“…Moreover, the refractive index of TMDCs [56], [40] at λ=632.8 nm is shown in Table I. Furthermore, the multi-Lorentzian function is employed to acquire the dielectric function of MX2, which can be specified as [52], [63]. The wavelength dependent on the dielectric function of MoSe2, WSe2, MoS2, and WS2 monolayer can be fitted by the multi-Lorentzian model:…”

Section: Sensor Design and Numerical Modeling 21 Design Of The Propos...mentioning

confidence: 99%

A Performance Comparison of Heterostructure Surface Plasmon Resonance Biosensor for the Diagnosis of Novel Coronavirus SARS-CoV-2

Akib

Mostufa

Rana

et al. 2022

Preprint

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This paper presents a performance comparison of heterostructure surface plasmon resonance (SPR) biosensors for the application of Novel Coronavirus SARS-CoV-2 diagnosis. The comparison is performed and compared with the existing literature based on the performance parameters in terms of several prisms such as BaF2, BK7, CaF2, CsF, SF6, and SiO2, several adhesion layers such as TiO2, Chromium, plasmonic metals such as Ag, Au, and two-dimensional (2D) transition metal dichalcogenides (TMDs) materials such as BP, Graphene, PtSe2 MoS2, MoSe2, WS2, WSe2. To study the performance of the heterostructure SPR sensor, the transfer matrix method (TMM) is applied, and to analyses, the electric field intensity (EFI) near the graphene-sensing layer contact, the finite-difference time-domain (FDTD) approach is utilized. Numerical results show that the heterostructure comprised of CaF2/TiO2/Ag/BP/Graphene/Sensing-layer has the best sensitivity and detection accuracy. The proposed sensor has an angle shift sensitivity of 390°/refractive index unit (RIU). Furthermore, the sensor achieved a detection accuracy (DA) of 0.464, a quality factor (QF) of 92.86/RIU, a figure of merit (FOM) of 87.95, and a combined sensitive factor (CSF) of 85.28. Furthermore, varied concentrations (0nM to 1000nM) of biomolecule binding interactions between ligands and analytes have been observed for the prospects of diagnosis of the SARS-CoV-2 virus. Results demonstrate that the proposed sensor is well suited for real-time and label-free detection particularly SARS-CoV-2 virus detection.

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Ultra-Sensitive Refractive Index Sensors Based on Bloch Surface Waves With Transition Metal Dichalcogenides

Cited by 27 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

Bloch Surface Wave Resonance Based Sensors as an Alternative to Surface Plasmon Resonance Sensors

A Performance Comparison of Heterostructure Surface Plasmon Resonance Biosensor for the Diagnosis of Novel Coronavirus SARS-CoV-2

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