Appointment: Professor

Research topics:

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

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1 to 10 of 72 Results
May 8, 2024 - Manoj GUPTA
Gupta, Manoj; Singh, Ranjan, 2024, "Replication Data for: 150 Gbps THz Chipscale Topological Photonic Diplexer", https://doi.org/10.21979/N9/NZQTAK, DR-NTU (Data), V1
Photonic diplexers are being widely investigated for high data transfer rates in on-chip communication. However, dividing the available spectrum into non-overlapping multicarrier frequency sub-bands has remained a challenge in designing frequency-selective time-invariant channels...
May 8, 2024 - Manoj GUPTA
Gupta, Manoj; Navaratna, Nikhil; Singh, Ranjan, 2024, "Replication Data for: 327 Gbps THz Silicon Photonic Interconnect with Sub-λ Bends", https://doi.org/10.21979/N9/YL4ACT, DR-NTU (Data), V1, UNF:6:C5QJEfvnPU+qrx9Zz7jezQ== [fileUNF]
Miniaturized photonic devices at the terahertz (THz) band are envisioned to bring significant enhancement to data transfer capacity and integration density for computing and future wireless communications. Broadband silicon waveguiding technology has continuously matured to advan...
May 8, 2024 - Manoj GUPTA
Gupta, Manoj; Kumar, Abhishek; Singh, Ranjan, 2024, "Replication Data for: Electrically Tunable Topological Notch Filter for THz Integrated Photonics", https://doi.org/10.21979/N9/GVCVO0, DR-NTU (Data), V1, UNF:6:fney/f97bT2LRtsFWU7wSg== [fileUNF]
Electromagnetic filtering is essential for emerging integrated photonic technologies and widely adaptable processing of high-bandwidth signals. Conventional electro-optic modulator-based photonic approach for signal filtering at microwave frequencies could not be implemented at t...
Apr 10, 2024 - MISHRA Sobhan Subhra
Agarwal, Piyush; Yang,Yingshu; Medwal, Rohit; Asada, Hironori; Fukuma, Yasuhiro; Battiato, Marco; Singh, Ranjan, 2024, "Related Data for: Secondary spin current driven efficient THz spintronic emitters", https://doi.org/10.21979/N9/INJ449, DR-NTU (Data), V1
Femtosecond laser-induced photoexcitation of ferromagnet (FM)/heavy metal (HM) heterostructures has attracted attention by emitting broadband terahertz frequencies. The phenomenon relies on the formation of an ultrafast spin current, which is primarily attributed to the direct ph...
Apr 9, 2024 - Sambhu JANA
Jana, Sambhu; Sreekanth, Kandammathe Valiyaveedu; Abdelraouf, Omar A.M.; Lin, Ronghui; Liu, Hong; Teng, Jinghua; Singh, Ranjan, 2024, "Related Data for: Aperiodic Bragg Reflectors for Tunable High-Purity Structural Color Based on Phase Change Material", https://doi.org/10.21979/N9/OZWMZ6, DR-NTU (Data), V1
Data for all published figures
Jan 4, 2024 - Kumar Abhishek
Kumar, Abhishek; Gupta, Manoj; Pitchappa, Prakash; Wang, Nan; Szriftgiser, Pascal; Ducournau, Guillaume; Singh, Ranjan, 2024, "Replication Data for: Phototunable chip-scale topological photonics: 160 Gbps waveguide and demultiplexer for THz 6G communication", https://doi.org/10.21979/N9/5FK01V, DR-NTU (Data), V1, UNF:6:Tuvu5B/ihg+tQ0K6+v6Euw== [fileUNF]
The revolutionary 5G cellular systems represent a breakthrough in the communication network design to provide a single platform for enabling enhanced broadband communications, virtual reality, autonomous driving, and the internet of everything. However, the ongoing massive deploy...
Oct 23, 2023 - Navaratna Nikhil
Navaratna, Nikhil; Tan. Yi Ji; Kumar, Abhishek; Gupta, Manoj; Singh, Ranjan, 2023, "Replication Data for: On-chip topological THz biosensors", https://doi.org/10.21979/N9/LYPYDG, DR-NTU (Data), V1, UNF:6:C5Twdq5XHdgEn2Vnp/wz3w== [fileUNF]
On-chip terahertz (THz) biosensors have enormous potential in advancing the development of integrable devices for real-time, label-free, and noninvasive detection of proteins, DNA, and cancerous tissue. However, high absorption of THz waves by water necessitates evanescent field-...
Oct 12, 2023 - Jia Ridong
Jia, Ridong; Kumar, Sonu; Tan, Thomas Caiwei; Kumar, Abhishek; Tan, Yi Ji; Gupta, Manoj; Szriftgiser, Pascal; Alphones, Arokiaswami; Ducournau, Guillaume; Singh, Ranjan, 2023, "Related Data for: Valley-conserved topological integrated antenna for 100 Gbps THz wireless", https://doi.org/10.21979/N9/4PIDJZ, DR-NTU (Data), V1, UNF:6:k1HuA2PFYtfMvC5llkGHgA== [fileUNF]
Topological phase has transformed the wave transport in condensed matter, photonic and acoustic systems, enabling integrated topological photonic circuits that allow the sharp bending of light on a chip. However, the momentum mismatch caused by material impedance inconsistency du...
Mar 30, 2023 - WANG Wenhao
Wang, Wenhao; Srivastava, Yogesh Kumar; Tan, Thomas CaiWei; Wang, Zhiming; Singh, Ranjan, 2023, "Replication data for: Robust ultrahigh Q factors in Brillouin zone folding induced bound states in the continuum metasurfaces", https://doi.org/10.21979/N9/XUK1JT, DR-NTU (Data), V1, UNF:6:lCps02FE1z5dBgt7OUjT3w== [fileUNF]
This dataset contains all the data used in the paper, titled 'Robust ultrahigh Q factors in Brillouin zone folding induced bound states in the continuum metasurfaces'.
TRIM_M22L1b0110(Nanyang Technological University)
Mar 10, 2023
Terahertz Reconfigurable Intelligent Metasurfaces (TRIM) for 6G communications
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