“…Furthermore, owing to the strong confinement of the electric field power within the gap region, asymmetric SRR structures could enable a trapped mode of the structure, where high Q-factor resonance can be induced for tunable metamaterial designs (Fedotov et al, 2007). Leveraging such design principles, the plasmonic nanoantennas are widely used for chemical sensing (Shih et al, 2019;Zhou et al, 2020;Chang et al, 2021;Ma et al, 2021;Zhou et al, 2021c;Liu et al, 2021), radiation detection (Salamin et al, 2019;Wei et al, 2020Wei et al, , 2021, imaging (Huang et al, 2013;Zheng et al, 2015), and silicon photonics applications Chen et al, 2018;Ren et al, 2021aRen et al, , 2021b.…”
Section: Thz Reconfigurable Metamaterials With Single Resonancementioning
confidence: 99%
“…Therefore, reconfigurable metadevices are more competitive, especially when dealing with complicated systems, where programmable design can benefit signal processing algorithms for a large amount of data, providing opportunities for the assistance of artificial intelligence for healthcare, environmental monitoring, reconfigurable intelligence surface for wireless communication systems, and Internet of Things applications. Figure 1 A roadmap of the development of reconfigurable THz metamaterials in the past 10 years, and metamaterials-enabled THz functional devices Reprinted from ref ( Tao et al., 2011 ; Grant et al., 2013 ; Liu et al., 2017 ; Belacel et al., 2017 ; Park et al., 2013 ; Lee et al., 2015 ; Tenggara et al., 2017 ; Zhou et al, 2021c ; Zhu et al., 2011 ; Zhu et al., 2012 ; Li et al., 2013 ; Ma et al., 2014 ; Pitchappa et al., 2015a , 2016c ; Zhang et al., 2017 ; Zhao et al., 2018 ; Cong et al., 2019 ; Pitchappa et al., 2020 , 2021b ) with permission, Copyright@2011 Optical Society of America, Copyright@2013 Wiley-VCH, Copyright@2017 Spring Nature, Copyright@2017 Spring Nature, Copyright@2013 American Chemical Society, Copyright@2015 Spring Nature, Copyright@2017 IOP Publishing, Copyright@2021 Elsevier, Copyright@2011 Wiley-VCH, Copyright@2012 Spring Nature, Copyright@2013 AIP Publishing, Copyright@2014 Spring Nature, Copyright@2015 Optical Society of America, Copyright@2016 Wiley-VCH, Copyright@2017 Spring Nature, Copyright@2018 Optical Society of America, Copyright@2019 AAAS, Copyright@2020 Wiley-VCH, Copyright@2021 Wiley-VCH. …”
Section: Introductionmentioning
confidence: 99%
“… Reprinted from ref ( Tao et al., 2011 ; Grant et al., 2013 ; Liu et al., 2017 ; Belacel et al., 2017 ; Park et al., 2013 ; Lee et al., 2015 ; Tenggara et al., 2017 ; Zhou et al, 2021c ; Zhu et al., 2011 ; Zhu et al., 2012 ; Li et al., 2013 ; Ma et al., 2014 ; Pitchappa et al., 2015a , 2016c ; Zhang et al., 2017 ; Zhao et al., 2018 ; Cong et al., 2019 ; Pitchappa et al., 2020 , 2021b ) with permission, Copyright@2011 Optical Society of America, Copyright@2013 Wiley-VCH, Copyright@2017 Spring Nature, Copyright@2017 Spring Nature, Copyright@2013 American Chemical Society, Copyright@2015 Spring Nature, Copyright@2017 IOP Publishing, Copyright@2021 Elsevier, Copyright@2011 Wiley-VCH, Copyright@2012 Spring Nature, Copyright@2013 AIP Publishing, Copyright@2014 Spring Nature, Copyright@2015 Optical Society of America, Copyright@2016 Wiley-VCH, Copyright@2017 Spring Nature, Copyright@2018 Optical Society of America, Copyright@2019 AAAS, Copyright@2020 Wiley-VCH, Copyright@2021 Wiley-VCH. …”
Section: Introductionmentioning
confidence: 99%
“…Combining the tunable metamaterials with THz photonics, functional THz devices could be effectively utilized to fill the THz gap, as shown in Figure 1. (Tao et al, 2011;Grant et al, 2013;Liu et al, 2017;Belacel et al, 2017;Park et al, 2013;Lee et al, 2015;Tenggara et al, 2017;Zhou et al, 2021c;Zhu et al, 2011;Zhu et al, 2012;Li et al, 2013;Ma et al, 2014;Pitchappa et al, 2015aPitchappa et al, , 2016cZhang et al, 2017;Zhao et al, 2018;Cong et al, 2019; Metamaterial-patterned THz sensors enable the enhancement of near-field intensity, improving the interaction between THz light and molecules for advanced sensing applications, as shown in Figure 1A (Park et al, 2013;Lee et al, 2015;Tenggara et al, 2017;Zhou et al, 2021c). In addition to that, for communication systems, metamaterials-enabled THz detectors can absorb THz electromagnetic waves with selective frequencies and strong resonance strengths, as shown in Figure 1B (Tao et al, 2011;Grant et al, 2013;Liu et al, 2017;Belacel et al, 2017).…”
“…Furthermore, owing to the strong confinement of the electric field power within the gap region, asymmetric SRR structures could enable a trapped mode of the structure, where high Q-factor resonance can be induced for tunable metamaterial designs (Fedotov et al, 2007). Leveraging such design principles, the plasmonic nanoantennas are widely used for chemical sensing (Shih et al, 2019;Zhou et al, 2020;Chang et al, 2021;Ma et al, 2021;Zhou et al, 2021c;Liu et al, 2021), radiation detection (Salamin et al, 2019;Wei et al, 2020Wei et al, , 2021, imaging (Huang et al, 2013;Zheng et al, 2015), and silicon photonics applications Chen et al, 2018;Ren et al, 2021aRen et al, , 2021b.…”
Section: Thz Reconfigurable Metamaterials With Single Resonancementioning
confidence: 99%
“…Therefore, reconfigurable metadevices are more competitive, especially when dealing with complicated systems, where programmable design can benefit signal processing algorithms for a large amount of data, providing opportunities for the assistance of artificial intelligence for healthcare, environmental monitoring, reconfigurable intelligence surface for wireless communication systems, and Internet of Things applications. Figure 1 A roadmap of the development of reconfigurable THz metamaterials in the past 10 years, and metamaterials-enabled THz functional devices Reprinted from ref ( Tao et al., 2011 ; Grant et al., 2013 ; Liu et al., 2017 ; Belacel et al., 2017 ; Park et al., 2013 ; Lee et al., 2015 ; Tenggara et al., 2017 ; Zhou et al, 2021c ; Zhu et al., 2011 ; Zhu et al., 2012 ; Li et al., 2013 ; Ma et al., 2014 ; Pitchappa et al., 2015a , 2016c ; Zhang et al., 2017 ; Zhao et al., 2018 ; Cong et al., 2019 ; Pitchappa et al., 2020 , 2021b ) with permission, Copyright@2011 Optical Society of America, Copyright@2013 Wiley-VCH, Copyright@2017 Spring Nature, Copyright@2017 Spring Nature, Copyright@2013 American Chemical Society, Copyright@2015 Spring Nature, Copyright@2017 IOP Publishing, Copyright@2021 Elsevier, Copyright@2011 Wiley-VCH, Copyright@2012 Spring Nature, Copyright@2013 AIP Publishing, Copyright@2014 Spring Nature, Copyright@2015 Optical Society of America, Copyright@2016 Wiley-VCH, Copyright@2017 Spring Nature, Copyright@2018 Optical Society of America, Copyright@2019 AAAS, Copyright@2020 Wiley-VCH, Copyright@2021 Wiley-VCH. …”
Section: Introductionmentioning
confidence: 99%
“… Reprinted from ref ( Tao et al., 2011 ; Grant et al., 2013 ; Liu et al., 2017 ; Belacel et al., 2017 ; Park et al., 2013 ; Lee et al., 2015 ; Tenggara et al., 2017 ; Zhou et al, 2021c ; Zhu et al., 2011 ; Zhu et al., 2012 ; Li et al., 2013 ; Ma et al., 2014 ; Pitchappa et al., 2015a , 2016c ; Zhang et al., 2017 ; Zhao et al., 2018 ; Cong et al., 2019 ; Pitchappa et al., 2020 , 2021b ) with permission, Copyright@2011 Optical Society of America, Copyright@2013 Wiley-VCH, Copyright@2017 Spring Nature, Copyright@2017 Spring Nature, Copyright@2013 American Chemical Society, Copyright@2015 Spring Nature, Copyright@2017 IOP Publishing, Copyright@2021 Elsevier, Copyright@2011 Wiley-VCH, Copyright@2012 Spring Nature, Copyright@2013 AIP Publishing, Copyright@2014 Spring Nature, Copyright@2015 Optical Society of America, Copyright@2016 Wiley-VCH, Copyright@2017 Spring Nature, Copyright@2018 Optical Society of America, Copyright@2019 AAAS, Copyright@2020 Wiley-VCH, Copyright@2021 Wiley-VCH. …”
Section: Introductionmentioning
confidence: 99%
“…Combining the tunable metamaterials with THz photonics, functional THz devices could be effectively utilized to fill the THz gap, as shown in Figure 1. (Tao et al, 2011;Grant et al, 2013;Liu et al, 2017;Belacel et al, 2017;Park et al, 2013;Lee et al, 2015;Tenggara et al, 2017;Zhou et al, 2021c;Zhu et al, 2011;Zhu et al, 2012;Li et al, 2013;Ma et al, 2014;Pitchappa et al, 2015aPitchappa et al, , 2016cZhang et al, 2017;Zhao et al, 2018;Cong et al, 2019; Metamaterial-patterned THz sensors enable the enhancement of near-field intensity, improving the interaction between THz light and molecules for advanced sensing applications, as shown in Figure 1A (Park et al, 2013;Lee et al, 2015;Tenggara et al, 2017;Zhou et al, 2021c). In addition to that, for communication systems, metamaterials-enabled THz detectors can absorb THz electromagnetic waves with selective frequencies and strong resonance strengths, as shown in Figure 1B (Tao et al, 2011;Grant et al, 2013;Liu et al, 2017;Belacel et al, 2017).…”
“…D-and L-enantiomers of three kinds of chiral amino acids in aqueous solution were successfully distinguished. Zhou et al [27] incorporated graphene with a THz metasurface into a microfluidic cell for sensitive biosensing, and they found that 100 nm DNA short sequences could be detected by this method. This research has made breakthrough progress, but the structure design and experimental method are complicated.…”
A terahertz (THz) all-dielectric metasurface with crescent cylinder arrays for chiral drug sensing has been demonstrated. Through the multipole expansion method, we theoretically found that breaking the symmetry of the metasurface can excite higher-order resonance modes and provide stronger anisotropy as well as enhanced sensitivity for the surroundings, which gives a better sensing performance than lower-order resonance. Based on the frequency shift and transmittance at higher-order resonance, we carried out the sensing experiments on (R)-(â)-ibuprofen and (S)-(+)-ibuprofen solution on the surface of this metasurface sensor. We were able to monitor the concentrations of ibuprofen solutions, and the maximum sensitivity reached 60.42 GHz/mg. Furthermore, we successfully distinguished different chiral molecules such as (R)-(â)-ibuprofen and (S)-(+)-ibuprofen in the 5 ÎŒL trace amount of samples. The maximum differentiation was 18.75 GHz/mg. Our analysis confirms the applicability of this crescent all-dielectric metasurface to enhanced sensing and detection of chiral molecules, which provides new paths for the identification of biomolecules in a trace amount.
The concept of a quasiâbound state in a continuum (QBIC) has garnered significant attention in various fields such as sensing, communication, and optical switching. Within metasurfaces, QBICs offer a reliable platform that enables sensing capabilities through potent interactions between local electric fields and matter. Herein, a novel terahertz (THz) biosensor based on the integration of QBIC with graphene is reported, which enables multidimensional detection. The proposed biosensor is distinctive because of its ability to discern concentrations of ethanol and Nâmethylpyrrolidone in a wide range from 100% to 0%, by monitoring the changes in the resonance intensity and maximum wavelet coefficient. This approach demonstrates an excellent linear fit, which ensures robust quantitative analysis. The remarkable sensitivity of our biosensor enables it to detect minute changes in lowâconcentration solutions, with the lowest detection concentration value (LDCV) of 0.21 pg mLâ1. 2D wavelet coefficient intensity cards are effectively constructed through continuous wavelet transforms, which presents a more accurate approach for determining the concentration of the solution. Ultimately, the novel sensing platform offers a host of advantages, including heightened sensitivity and reusability. This pioneering approach establishes a new avenue for liquidâbased terahertz biosensing.
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