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Superconducting On-Chip Spectrometery for Millimeter-submillimeter Wave Astronomy
IEICE TRANSACTIONS on Electronics
Publication Date: 2015/03/01
Online ISSN: 1745-1353
Type of Manuscript: INVITED PAPER (Special Section on Leading-Edge Applications and Fundamentals of Superconducting Sensors and Detectors)
Spectroscopy, millimeter wave, submillimeter wave, superconducting electronics, astronomical instrumentation,
Full Text: FreePDF(644.3KB)
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.