Pedestal subwavelength grating metamaterial waveguide ring resonator for ultra-sensitive label-free biosensing

CW Chang, X Xu, S Chakravarty, HC Huang… - Biosensors and …, 2019 - Elsevier
Mode volume overlap factor is one of the parameters determining the sensitivity of a sensor.
In past decades, many approaches have been proposed to increase the mode volume …

Portable automatic microring resonator system using a subwavelength grating metamaterial waveguide for high-sensitivity real-time optical-biosensing applications

V Soni, CW Chang, X Xu, C Wang… - IEEE Transactions …, 2020 - ieeexplore.ieee.org
The slow light sensor techniques have been applied to bio-related detection in the past
decades. However, similar testing-systems are too large to carry to a remote area for …

Label-free biosensing with a multi-box sub-wavelength phase-shifted Bragg grating waveguide

E Luan, H Yun, M Ma, DM Ratner… - Biomedical optics …, 2019 - opg.optica.org
Sub-wavelength grating (SWG) metamaterials have been considered to provide promising
solutions in the development of next-generation photonic integrated circuits. In recent years …

Mid-infrared sensor based on a suspended microracetrack resonator with lateral subwavelength-grating metamaterial cladding

Z Zhang, GI Ng, T Hu, H Qiu, X Guo… - IEEE Photonics …, 2018 - ieeexplore.ieee.org
A mid-infrared (MIR) biochemical sensor based on a one-time Si etching suspended
microracetrack resonator with lateral subwavelength-grating metamaterial cladding is …

Improving the detection limit for on-chip photonic sensors based on subwavelength grating racetrack resonators

L Huang, H Yan, X Xu, S Chakravarty, N Tang… - Optics express, 2017 - opg.optica.org
Compared to the conventional strip waveguide microring resonators, subwavelength grating
(SWG) waveguide microring resonators have better sensitivity and lower detection limit due …

Enhanced sensing ability in a single-layer guided-mode resonant optical biosensor with deep grating

L Qian, K Wang, W Zhu, C Han, C Yan - Optics Communications, 2019 - Elsevier
A single-layer guided-mode resonance (SGMR) structure as a refractive index sensor is
proposed and experimentally demonstrated with enhanced sensing ability. The sensitivity …

Enhanced sensitivity of subwavelength multibox waveguide microring resonator label-free biosensors

E Luan, H Yun, L Laplatine, Y Dattner… - IEEE Journal of …, 2018 - ieeexplore.ieee.org
In this paper, a novel silicon photonic waveguide for a high sensitivity label-free sensor is
presented. We use silicon-on-insulator subwavelength waveguides that consist of five rows …

Unique surface sensing property and enhanced sensitivity in microring resonator biosensors based on subwavelength grating waveguides

H Yan, L Huang, X Xu, S Chakravarty, N Tang… - Optics express, 2016 - opg.optica.org
In this paper, unique surface sensing property and enhanced sensitivity in microring
resonator biosensors based on subwavelength grating (SWG) waveguides are studied and …

Biomedical sensing with conductively coupled terahertz metamaterial resonators

I Al-Naib - IEEE Journal of Selected Topics in Quantum …, 2016 - ieeexplore.ieee.org
Metamaterials that can support ultrasharp resonances using conductively coupled split ring
resonators are potential candidates for designing label-free biomedical sensors. The sharp …

All-dielectric metasurface based on complementary split-ring resonators for refractive index sensing

M Samadi, F Abshari, JF Algorri, P Roldán-Varona… - Photonics, 2022 - mdpi.com
Thanks to their lower losses and sharper resonances compared to their metallic
counterparts, all-dielectric metasurfaces are attracting a quickly growing research interest …