Appointment: PhD Student (graduated)

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1 to 7 of 7 Results
Jan 4, 2024
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",, 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...
Jul 8, 2022
Kumar, Abhishek; Gupta, Manoj; Pitchappa, Prakash; Tan, Yi Ji; Wang, Nan; Singh, Ranjan, 2022, "Replication Data for: Topological sensor on a silicon chip",, DR-NTU (Data), V1, UNF:6:YtPvcwy2l19op0LmCXIy4w== [fileUNF]
An ultrasensitive photonic sensor is vital for sensing matter with absolute specificity. High specificity terahertz photonic sensors are essential for many fields, including medical research, clinical diagnosis, security inspection and probing molecular vibrations in all forms of...
Jun 27, 2022
Kumar, Abhishek; Gupta, Manoj; Pitchappa, Prakash; Tan, Thomas Caiwei; Chattopadhyay, Udvas; Ducournau, Guillaume; Wang, Nan; Chong, Yidong; Singh, Ranjan, 2022, "Replication Data for: Active Ultrahigh‐Q (0.2 × 106) THz Topological Cavities on a Chip",, DR-NTU (Data), V1
Rapid scaling of semiconductor devices has led to an increase in the number of processor cores and integrated functionalities onto a single chip to support the growing demands of high-speed and large volume consumer electronics. This burgeoning demand for an ever-increasing on-ch...
Oct 19, 2021
Kumar Abhishek, 2021, "Electromechanically tunable frequency-agile metamaterial bandpass filters for terahertz waves",, DR-NTU (Data), V1
Tunable transmission filters are essential for various key terahertz applications including miniaturized spectrometers, hyperspectral imagers and channel selectors in high-speed wireless communication systems. However, tunable terahertz transmission filters have remained elusive,...
May 4, 2020
Kumar Abhishek; Yogesh Kumar Srivastava; Manukumara Manjappa; Ranjan Singh, 2020, "Replication Data for: Color‐Sensitive Ultrafast Optical Modulation and Switching of Terahertz Plasmonic Devices",, DR-NTU (Data), V1
2D micro‐nanostructured metal films with hole arrays show promising features such as the extraordinary transmission of light. Such systems are interesting in the field of subwavelength photonics and nonlinear optics due to their high field confinement in addition to their inheren...
May 4, 2020
Kumar Abhishek; Priyadarshi Anish; Shukla Sudhanshu; Manjappa Manukumara; Lew Jia Haur; Subodh G. Mhaisalkar; Ranjan Singh, 2020, "Replication Data for: Ultrafast THz photophysics of solvent engineered triple-cation halide perovskites",, DR-NTU (Data), V1
Solution processed thin film organic-inorganic perovskites are key to the large scale manufacturing of next generation wafer scale solar cell devices. The high efficiency of the hybrid perovskite solar cells is derived mainly from the large carrier mobility and the charge dynamic...
Apr 21, 2020
Kumar Abhishek; Solanki Ankur; Manjappa Manukumara; Ramesh Sankaran; Srivastava Yogesh Kumar; Agarwal Piyush; Sum, Tze Chien; Singh Ranjan, 2020, "Replication Data for: Excitons in 2D perovskites for ultrafast terahertz photonic devices",, DR-NTU (Data), V1, UNF:6:ZfJvc1C1T+pYrsgk29IZsg== [fileUNF]
In recent years, two-dimensional (2D) Ruddlesden-Popper perovskites have emerged as promising candidates for environmentally stable solar cells, highly efficient light-emitting diodes, and resistive memory devices. The remarkable existence of self-assembled quantum well (QW) stru...
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