Appointment: Professor

Research topics:

Development of terahertz, infrared, and optical metamaterial based active and passive plasmonic devices.

Featured Dataverses

In order to use this feature you must have at least one published dataverse.

Publish Dataverse

Are you sure you want to publish your dataverse? Once you do so it must remain published.

Publish Dataverse

This dataverse cannot be published because the dataverse it is in has not been published.

Delete Dataverse

Are you sure you want to delete your dataverse? You cannot undelete this dataverse.

Advanced Search

51 to 60 of 75 Results
Replication Data for: All-Dielectric Active Terahertz Photonics Driven by Bound States in the Continuum
Replication Data for: All-Dielectric Active Terahertz Photonics Driven by Bound States in the Continuum
Jun 10, 2021 - Han Song
Han, Song; Cong, Longqing; Srivastava, Yogesh Kumar; Qiang, Bo; Rybin, Mikhail V; Kumar, Abhishek; Jain, Ravikumar; Lim, Wen Xiang; Achanta, Venu Gopal; Prabhu, Shriganesh S; Wang, Qijie; Kivshar, Yuri S; Singh, Ranjan, 2021, "Replication Data for: All-Dielectric Active Terahertz Photonics Driven by Bound States in the Continuum", https://doi.org/10.21979/N9/7W8PLG, DR-NTU (Data), V1
The remarkable emergence of all-dielectric meta-photonics governed by the physics of high-index dielectric materials offers a low-loss platform for efficient manipulation and subwavelength control of electromagnetic waves from microwaves to visible frequencies. Dielectric metasur...
Replication Data for: Frequency-agile Temporal Terahertz Metamaterials
Jun 10, 2021 - THz metamaterials
Prakash Pitchappa; Abhishek Kumar; Haidong Liang; Saurav Prakash; Nan Wang; Andrew A Bettiol; Thirumalai Venkatesan; Chengkuo Lee; Ranjan Singh, 2021, "Replication Data for: Frequency-agile Temporal Terahertz Metamaterials", https://doi.org/10.21979/N9/W62P3W, DR-NTU (Data), V1
Spatiotemporal manipulation of electromagnetic waves has recently enabled a plethora of exotic optical functionalities, such as non-reciprocity, dynamic wavefront control, unidirectional transmission, linear frequency conversion and electromagnetic Doppler cloak. Here, we introdu...
Related data for: Bidirectional reconfiguration and thermal tuning of microcantilever metamaterial device operating from 77 K to 400 K
Jun 10, 2021 - THz metamaterials
Prakash Pitchappa; Manukumara Manjappa; Harish N. S. Krishnamoorthy; Yuhua Chang; Chengkuo Lee; Ranjan Singh, 2021, "Related data for: Bidirectional reconfiguration and thermal tuning of microcantilever metamaterial device operating from 77 K to 400 K", https://doi.org/10.21979/N9/K2UFGP, DR-NTU (Data), V1
To be filled
Replication Data for: Ultrafast Photo-Thermal Switching of Terahertz Spin Currents
Replication Data for: Ultrafast Photo-Thermal Switching of Terahertz Spin Currents
Jun 1, 2021 - Piyush AGARWAL
Agarwal, Piyush; Medwal, Rohit; Kumar, Abhishek; Asada, Hironori; Fukuma, Yasuhiro; Rawat, Rajdeep Singh; Battiato, Marco; Singh, Ranjan, 2021, "Replication Data for: Ultrafast Photo-Thermal Switching of Terahertz Spin Currents", https://doi.org/10.21979/N9/Y5VUPE, DR-NTU (Data), V1
Dissipationless and scattering-free spin-based terahertz electronics is the futuristic technology for energy-efficient information processing. Femtosecond light pulse provides an ideal pathway for exciting the ferromagnet (FM) out-of-equilibrium, causing ultrafast demagnetization...
Replication Data for: A metamaterial analog of the ising model
Replication Data for: A metamaterial analog of the ising model
Mar 8, 2021 - THz metamaterials
Cong, Longqing; Singh, Ranjan, 2021, "Replication Data for: A metamaterial analog of the ising model", https://doi.org/10.21979/N9/ZMPLSH, DR-NTU (Data), V1
The interaction between microscopic particles has always been a fascinating and intriguing area of science. Direct interrogation of such interactions is often difficult. Structured electromagnetic systems offer a rich toolkit for mimicking and reproducing the key dynamics that go...
Replication Data for: Electrically programmable terahertz diatomic metamolecules for chiral optical control
Mar 8, 2021 - THz metamaterials
Cong, Longqing; Singh, Ranjan, 2021, "Replication Data for: Electrically programmable terahertz diatomic metamolecules for chiral optical control", https://doi.org/10.21979/N9/ER0KRH, DR-NTU (Data), V1
Optical chirality is central to many industrial photonic technologies including enantiomer identification, ellipsometry-based tomography and spin multiplexing in optical communications. However, a substantial chiral response requires a three-dimensional constituent, thereby makin...
Replication Data for: Symmetry-protected dual bound states in the continuum in metamaterials
Replication Data for: Symmetry-protected dual bound states in the continuum in metamaterials
Mar 8, 2021 - THz metamaterials
Cong, Longqing; Singh, Ranjan, 2021, "Replication Data for: Symmetry-protected dual bound states in the continuum in metamaterials", https://doi.org/10.21979/N9/ZUUGII, DR-NTU (Data), V1
Bound state in the continuum (BIC) is a mathematical concept with an infinite radiative quality factor (Q) that exists only in an ideal infinite array of resonators. In photonics, it is essential to achieve high Q resonances for enhanced light-mater interactions that could enable...
Replication Data for: Reconfigurable MEMS Fano metasurfaces with multiple-input-output states for logic operations at terahertz frequencies
Mar 3, 2021 - Manukumara Manjappa
Manjappa, Manukumara; Pitchappa, Prakash; Singh, Navab; Wang, Nan; Zheludev, Nikolay I.; Lee, Chengkuo; Singh, Ranjan, 2021, "Replication Data for: Reconfigurable MEMS Fano metasurfaces with multiple-input-output states for logic operations at terahertz frequencies", https://doi.org/10.21979/N9/XZATO7, DR-NTU (Data), V1, UNF:6:I6/Wbbi7GhGtLQPuFCjVsA== [fileUNF]
A broad range of dynamic metasurfaces has been developed for manipulating the intensity, phase and wavefront of electromagnetic radiation from microwaves to optical frequencies. However, most of these metasurfaces operate in single-input-output state. Here, we experimentally demo...
Replication Data for: Strong Self-trapping by Deformation Potential Limits Photovoltaic Performance in Bismuth Double Perovskite
Feb 18, 2021 - FU Jianhui
Fu, Jianhui, 2021, "Replication Data for: Strong Self-trapping by Deformation Potential Limits Photovoltaic Performance in Bismuth Double Perovskite", https://doi.org/10.21979/N9/LTPBM2, DR-NTU (Data), V1
Replication data for the paper including the raw data, processed data and figures. DOI: Sci. Adv. 2021; 7 : eabd3160
Replication Data for: Impact of conductivity on Lorentzian and Fano resonant high-Q THz metamaterials: Superconductor, metal and perfect electric conductor
Replication Data for: Impact of conductivity on Lorentzian and Fano resonant high-Q THz metamaterials: Superconductor, metal and perfect electric conductor
May 15, 2020 - Yogesh Kumar Srivastava
Srivastava, Yogesh Kumar; Singh, Ranjan, 2020, "Replication Data for: Impact of conductivity on Lorentzian and Fano resonant high-Q THz metamaterials: Superconductor, metal and perfect electric conductor", https://doi.org/10.21979/N9/AWKV0V, DR-NTU (Data), V1
High temperature superconductors have created exciting opportunities for switchable metamaterial and plasmonic devices operating at terahertz frequencies. In recent times, there have been several demonstrations using superconducting metamaterials, such as thermal, electrical, mag...
Add Data

Log in to create a dataverse or add a dataset.

Log In
Share Dataverse

Share this dataverse on your favorite social media networks.

Link Dataverse
Reset Modifications

Are you sure you want to reset the selected metadata fields? If you do this, any customizations (hidden, required, optional) you have done will no longer appear.