Abhishek Kumar, PhD
Assistant Professor
Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bengaluru, INDIA
Google scholar : https://scholar.google.com.sg/citations?user=Van2R9wAAAAJ&hl=en
1.Jia Ridong, Kumar Sonu, Thomas Caiwei Tan, Kumar Abhishek, Tan Yi Ji, Gupta Manoj, Szriftgiser Pascal, Alphones Arokiaswami, Ducournau Guillaume, Singh Ranjan, “Valley-conserved topological integrated antenna for 100-Gbps THz 6G wireless” Sci. Adv.9, eadi8500(2023).
2.Navaratna Nikhil, Tan Yi Ji, Kumar Abhishek, Gupta Manoj, Singh Ranjan, “On-chip topological THz biosensors”, Appl. Phys. Lett. 17 July 2023; 123 (3): 033705.
3.Gupta Manoj, Kumar Abhishek, Singh Ranjan, “Electrically tunable topologicalnotch filter for THz integrated photonics”, Adv.Optical Mater.2301051(2023)
1. Kumar Abhishek, Gupta Manoj, Pitchappa Prakash, Nan Wang, Szriftgiser Pascal, Ducournau Guillaume, Singh Ranjan, “Phototunable chip-scale topological photonics: 160 Gbps waveguide and demultiplexer for THz 6G communication”,Nat Commun, 13,5404 (2022)
2. Kumar Abhishek, Gupta Manoj, Singh Ranjan, “Topological integrated circuits for 5G and 6G”, Nat Electron5, 261–262 (2022)
3. Kumar Abhishek, Gupta Manoj, Pitchappa Prakash, Tan Yi Ji, Nan Wang, Singh Ranjan, “Topological sensor on a silicon chip”, Phys. Lett.121, 011101 (2022)
4. Kumar Abhishek, Gupta Manoj, Pitchappa Prakash, Tan Caiwei Thomas, Chattopadhyay Udvas, Ducournau Guillaume, Nan Wang, Chong Yidong, Singh Ranjan, “Active Ultrahigh Q THz Topological Cavities on a chip”, Mater., 34, 2202370 (2022)
5. Kumar Abhishek, Gupta Manoj, Pitchappa Prakash, Nan Wang, Fujita Masayuki, Singh Ranjan, “Terahertz topological photonic integrated circuits for 6G and beyond: A Perspective”, Appl. Phys. 14 October 2022; 132 (14): 140901
6. Yi Ji Tan, Wenhao Wang, Kumar Abhishek, Singh Ranjan, “Interfacial topological photonics: broadband silicon waveguides for THz 6G communication and beyound”, Express 30, 33035-33047 (2022)
7. Yi Ji Tan, Zhu Changyan, Tan Caiwei Thomas, Kumar Abhishek, Wong Jie, Liang, Chong Yidong, Singh Ranjan, “Self- adaptive deep reinforcement learning for THz beamforming with silicon metasurfaces in 6G communications” Express30, 27763-27779 (2022)
1. Pitchappa Prakash, Kumar Abhishek, Singh Ranjan, Wang Nan, “Electromechanically Tunable Frequency-agile Metamaterial Bandpass Filters for Terahertz Waves” Optical Mater.2022, 10, 2101544.
2. Pitchappa Prakash, Kumar Abhishek, Singh Ranjan, Lee Chengkuo,Wang Nan, “Terahertz MEMS metadevices”, Micromech. Microeng. 31 113001, 2021
3. Prakash Pitchappa, Kumar Abhishek, Prakash Saurav, jani Hariom, Medwal Rohit, Mishra Mayank, Rawat Rajdeep Singh, Venkatesan Thirumalai, Wang Nan, and Singh Ranjan, “Volatile Ultrafast Switching at Multilevel Nonvolatile States of Phase Change Material for Active Flexible Terahertz Metadevices”, Funct. Mater., 31, 2100200 (2021).
4. Agarwal Piyush, Medwal Rohit, Kumar Abhishek, Asada Hironori, Fukuma Yasuhiro, Rawat Rajdeep Singh, Battiato Marco, and Singh Ranjan, “Ultrafast Photo-Thermal Switching of Terahertz Spin Currents. Funct. Mater.2021, 31, 2010453.”
1. Pitchappa Prakash, Kumar Abhishek, Liang Haidong, Prakash Saurav, Wang Nan, Bettiol Andrew A, Venkatesan Thirumalai, Lee Chengkuo, and Singh Ranjan, “Frequency-Agile Temporal Terahertz Metamaterials,” Optical Mater.2020, 8, 2000101.
2. Kumar Abhishek, Solanki Ankur, Manjappa Manukumara, Ramesh Sankaran, Srivastava Yogesh Kumar, Agarwal Piyush, Sum Tze Chien, and Singh Ranjan, “Excitons in 2D perovskites for ultrafast terahertz photonic devices,” Science Advances, vol. 6, no. 8, p. eaax8821, (2020).
1. Han Song, Cong Longqing, Srivastava Yogesh Kumar, Qiang Bo, Rybin Mikhail V, Kumar Abhishek, Jain Ravi, Lim Wen Xiang, Venu Gopal Achanta, Shriganesh S Prabhu, Wang Qi Jie, Kivshar Yuri S, Singh Ranjan “All-Dielectric Active Terahertz Photonics Driven by Bound States in the Continuum,” Advanced Materials, vol. 31, no. 37, p. 1901921, (2019).
2.Manjappa Manu, Solanki Ankur, Kumar Abhishek, Sum Tze Chien, and Singh Ranjan, “Solution-Processed Lead Iodide for Ultrafast All-Optical Switching of Terahertz Photonic Devices,” Advanced Materials, vol. 31, no. 32, p. 1901455, (2019).
3. Pitchappa Prakash, Kumar Abhishek, Prakash Saurav, Jani Hariom, Venkatesan Thirumalai, and Singh Ranjan, “Chalcogenide Phase Change Material for Active Terahertz Photonics,” Advanced Materials, vol. 31, no. 12, p. 1808157, 2019.
1. Kumar Abhishek, Priyadarshi Anish, Shukla Sudhanshu, Manjappa Manukumara, Haur Lew Jia, Mhaisalkar Subodh G, and Singh Ranjan, “Ultrafast THz photophysics of solvent engineered triple-cation halide perovskites,” Journal of Applied Physics, vol. 124, no. 21, p. 215106, (2018).
2. Kumar Abhishek, Srivastava Yogesh Kumar, Manjappa Manukumara, and Singh Ranjan, “Color-Sensitive Ultrafast Optical Modulation and Switching of Terahertz Plasmonic Devices,” Advanced Optical Materials,6, 1800030, (2018).
3. Lim Wen Xiang, Manjappa Manukumara, Srivastava Yogesh Kumar, Cong Longqing, Kumar Abhishek, MacDonald Kevin F, and Singh Ranjan, “Ultrafast All-Optical Switching of Germanium-Based Flexible Metaphotonic Devices,” Advanced Materials, vol.30, no.9, p. 1705331, (2018).
1. Srivastava Yogesh Kumar, Chaturvedi Apoorva, Manjappa Manukumara, Kumar Abhishek, Dayal Govind, Kloc Christian, and Singh Ranjan, “MoS2 for Ultrafast All-Optical Switching and Modulation of THz Fano Metaphotonic Devices,” Advanced Optical Materials, vol. 5, no. 23, p. 1700762, 2017.
2. Manjappa Manukumara, Srivastava Yogesh Kumar, Solanki Ankur, Kumar Abhishek, Sum Tze Chien, and Singh Ranjan, “Hybrid Lead Halide Perovskites for Ultrasensitive Photoactive Switching in Terahertz Metamaterial Devices,” Advanced Materials, vol. 29, no. 32, p. 1605881, (2017).
3. Ray Subir K, Chandel Shubham, Singh Ankit K, Kumar Abhishek, Mandal Arpita, Misra Subhradeep, Mitra Partha, and Ghosh Nirmalya ,”Polarization-Tailored Fano Interference in Plasmonic Crystals: A Mueller Matrix Model of Anisotropic Fano Resonance”, ACS Nano , 11, 2, 1641–1648, (2017)