Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Prakash Pitchappa"'
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract Topological slow light exhibits potential to achieve stopped light by virtue of its widely known robust and non-reciprocal behaviours. Conventional approach for achieving topological slow light often involves flat-band engineering without di
Externí odkaz:
https://doaj.org/article/74d57cbda0e94403b9167a9d9db08acc
Autor:
Abhishek Kumar, Manoj Gupta, Prakash Pitchappa, Nan Wang, Pascal Szriftgiser, Guillaume Ducournau, Ranjan Singh
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
6G communication requires high-speed and advanced functionalities on-chip. Here the authors demonstrate broadband phototunable topological waveguide and demultiplexing chip with record single-channel 160 Gbit/s communication link and excellent channe
Externí odkaz:
https://doaj.org/article/aedf4683edd54190af1bb5effd6dc018
Publikováno v:
Micromachines, Vol 14, Iss 5, p 1044 (2023)
The remarkable explosion of wireless devices and bandwidth-consuming Internet applications have boosted the demand for wireless communications with ultra-high data rate [...]
Externí odkaz:
https://doaj.org/article/beb1a5f9e3a04da88a081509dd0856e6
Publikováno v:
Advanced Science, Vol 8, Iss 22, Pp n/a-n/a (2021)
Abstract Space‐time wave packets are electromagnetic waves with strong correlations between their spatial and temporal degrees of freedom. These wave packets have gained much attention for fundamental properties like propagation invariance and user
Externí odkaz:
https://doaj.org/article/2e1f5c8758154138bc84699fa8f0540f
Publikováno v:
Micromachines, Vol 13, Iss 2, p 285 (2022)
The forthcoming sixth generation (6G) communication network is envisioned to provide ultra-fast data transmission and ubiquitous wireless connectivity. The terahertz (THz) spectrum, with higher frequency and wider bandwidth, offers great potential fo
Externí odkaz:
https://doaj.org/article/ca25d2a02673443eafa5a76093086a76
Autor:
Manukumara Manjappa, Prakash Pitchappa, Navab Singh, Nan Wang, Nikolay I. Zheludev, Chengkuo Lee, Ranjan Singh
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-10 (2018)
Here, the authors demonstrate excitation and active tuning of sharp Fano resonances in a MEMS reconfigurable metasurface possessing multiple-input-output states. They realize XOR, XNOR, NOT and NAND logic gate operations by using two independently co
Externí odkaz:
https://doaj.org/article/01d0a0da20694596b9ce94a62f1702ea
Publikováno v:
Research, Vol 2019 (2019)
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-dimensi
Externí odkaz:
https://doaj.org/article/d100081f15874463ae9ad4ab9c5cbf8f
Autor:
I-Ting Wang, Lennon Yao Ting Lee, Prakash Pitchappa, Chong Pei Ho, Nanxi Li, Yao Zhu, Yuan Hsing Fu
Publikováno v:
Nanophotonics, Vol 10, Iss 5, Pp 1437-1467 (2021)
With the emerging trend of big data and internet-of-things, sensors with compact size, low cost and robust performance are highly desirable. Spectral imaging and spectral LIDAR systems enable measurement of spectral and 3D information of the ambient
Autor:
Abhishek, Kumar, Manoj, Gupta, Prakash, Pitchappa, Thomas Caiwei, Tan, Udvas, Chattopadhyay, Guillaume, Ducournau, Nan, Wang, Yidong, Chong, Ranjan, Singh
Publikováno v:
Advanced materials (Deerfield Beach, Fla.). 34(27)
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. To meet this burgeoni
Autor:
Yuichiro Yamagami, Masayuki Fujita, Prakash Pitchappa, Yihao Yang, Julian Webber, Xiongbin Yu, Ranjan Singh, Tadao Nagatsuma, Baile Zhang
Publikováno v:
Nature Photonics. 14:446-451
The computing speeds in modern multi-core processors and big data servers are no longer limited by the on-chip transistor density that doubles every two years following the Moores law, but are limited by the on-chip data communication between memorie