2D materials for terahertz modulation

P Gopalan, B Sensale‐Rodriguez - Advanced Optical Materials, 2020 - Wiley Online Library
Terahertz waves spanning over the 0.1 to 10 THz region of the electromagnetic spectrum
have attracted significant attention owing to a variety of potential applications such as short …

Shaping High‐Q Planar Fano Resonant Metamaterials toward Futuristic Technologies

WX Lim, M Manjappa, P Pitchappa… - Advanced Optical …, 2018 - Wiley Online Library
Advances in plasmonic metamaterials have been rapidly evolving with innovations aimed at
developing metadevices for real‐world applications. In reality, energy losses in plasmonic …

Ultrasensitive terahertz sensing with high-Q Fano resonances in metasurfaces

R Singh, W Cao, I Al-Naib, L Cong… - Applied Physics …, 2014 - pubs.aip.org
High quality factor resonances are extremely promising for designing ultra-sensitive
refractive index label-free sensors, since it allows intense interaction between …

[HTML][HTML] Experimental demonstration of ultrasensitive sensing with terahertz metamaterial absorbers: A comparison with the metasurfaces

L Cong, S Tan, R Yahiaoui, F Yan, W Zhang… - Applied Physics …, 2015 - pubs.aip.org
Planar metasurfaces and plasmonic resonators have shown great promise for sensing
applications across the electromagnetic domain ranging from the microwaves to the optical …

Sensing with toroidal metamaterial

M Gupta, YK Srivastava, M Manjappa… - Applied Physics …, 2017 - pubs.aip.org
Localized electromagnetic excitation in the form of toroidal dipoles has recently been
observed in metamaterial systems. The origin of the toroidal dipole lies in the currents …

Excitons in 2D perovskites for ultrafast terahertz photonic devices

A Kumar, A Solanki, M Manjappa, S Ramesh… - Science …, 2020 - science.org
In recent years, two-dimensional (2D) Ruddlesden-Popper perovskites have emerged as
promising candidates for environmentally stable solar cells, highly efficient light-emitting …

Active photoswitching of sharp Fano resonances in THz metadevices

M Manjappa, YK Srivastava, L Cong, I Al-Naib, R Singh - 2017 - dr.ntu.edu.sg
Fano resonances offer exciting features in enhancing the non-linearity and sensing
capabilities in metamaterial systems. An active photoswitching of Fano resonances in a …

[PDF][PDF] Fano resonances in terahertz metasurfaces: a figure of merit optimization

L Cong, M Manjappa, N Xu, I Al‐Naib… - Advanced Optical …, 2015 - researchgate.net
After the theoretical explanation for the scattering phenomenon of electrons from helium
atom by Fano,[1] the Fano resonance lineshape was also observed and studied in many …

Sharp toroidal resonances in planar terahertz metasurfaces

M Gupta, V Savinov, N Xu, L Cong, G Dayal, S Wang… - 2016 - dr.ntu.edu.sg
DOI: 10 Page 1 This document is downloaded from DR‑NTU (https://dr.ntu.edu.sg) Nanyang
Technological University, Singapore. Sharp Toroidal Resonances in Planar Terahertz …

Ultrasensitive terahertz metamaterial sensor based on spoof surface plasmon

X Chen, W Fan - Scientific reports, 2017 - nature.com
A planar terahertz metamaterial sensor consisting of a corrugated metal stripe perforated by
three rectangular grooves is proposed and investigated numerically. Due to the formation of …