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Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI

DESHIMA 2.0: full system evaluation of the ultra-wideband integrated superconducting spectrometer in laboratory

K. Karatsu, Akira Endo, Arend Moerman, S. J. C. Yates, Robert Huiting, Alejandro Pascual Laguna, Shahab O. Dabironezare, Vignesh Murugesan, David Johannes Thoen, Hiroki Akamatsu, Tom J. L. C. Bakx, Bruno T. Buijtendorp, Scott Cray, Kazuyuki Fujita, Shaul Hanany, Ryohei Kawabe, Tetsu Kitayama, Kotaro Kohno, Kuniaki Konishi, Louis H. Marting, T. Matsumura, Shunichi Nakatsubo, Tai Oshima, Matus Rybak, Haruyuki Sakurai, Ryota Takaku, Tatsuya Takekoshi, Yoichi Tamura, Akio Taniguchi, Paul P. van der Werf, J. J. A. Baselmans

Published Jun 14, 2024• 0 citations
Publisher
DOI
10.1117/12.3019013

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•Oct 5, 2021•0 citations
Since the birth of astrophysics, astronomers have been using free-space optics to analyze light falling on Earth. In the future however, thanks to the advances in photonics and nanoscience/nanotechnology, much of the manipulation of light might be carried out using not optics but confined waveguides, or circuits, on a chip. This new generation of instruments will be not only extremely compact, but also powerful in performance because the integration enables a greater degree of multiplexing. The benefit is especially profound for space- or air-borne observatories, where size, weight, and mechanical reliability are of top priority. Recently, several groups around the world are trying to integrate ultra-wideband (UWB), low-resolution spectrometers for millimeter-submillimeter waves onto microchips, using superconducting microelectronics. The scope of this Paper is to provide a general introduction and a review of the state-of-the-art of this rapidly advancing field.
Physical layer secrecy in wireless communication is a new approach of information security and has emerged into a fascinating topic attracting lots of research. Ultra-WideBand (UWB) technology in conjunction with Time-Reversal (TR) is used to improve the speed of transmission and reduce the cost and complexity for the receiver. This paper focuses on the evaluation of physical layer secrecy in Multi-Input Multi-Output (MIMO) UWB system with TR and compares to the system without using TR technique to clarify the advantages of this technique. Simulation results show that the secrecy capacity of UWB system is significantly improved when applying TR technique.
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