Photon noise limited performance over an octave of bandwidth of kinetic inductance detectors for sub-millimeter astronomy

Conference paper (2016)

Authors

J. Bueno Lopez SRON Netherlands Institute for Space Research
O. Yurduseven Tera-Hertz Sensing - EEMCS
SJC Yates SRON Netherlands Institute for Space Research
Nuria Llombart Tera-Hertz Sensing - EEMCS
V. Murugesan SRON Netherlands Institute for Space Research
David Thoen Tera-Hertz Sensing - EEMCS
AM Baryshev Rijksuniversiteit Groningen, SRON Netherlands Institute for Space Research
A. Neto Tera-Hertz Sensing - EEMCS
J.J.A. Baselmans SRON Netherlands Institute for Space Research, Tera-Hertz Sensing - EEMCS
Research Group
Tera-Hertz Sensing (EEMCS) (TU Delft)
More Info
expand_more

Published Date

01-12-2016

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Tera-Hertz Sensing

Abstract

We present the development of background limited kinetic inductance detectors (KIDs) for THz astronomy applications to be used in space based observatories. The THz radiation is coupled to the KID via a leaky wave antenna covering the frequency range from 1.4 to 2.8 THz. We have developed a hybrid niobium titanium nitride/aluminium (NbTiN/Al) KID, fabricated on a silicon (Si) substrate, in which the leaky wave antenna and absorbing section of the KID are fabricated on a suspended silicon nitride (SiN) membrane. The radiation is coupled to the leaky wave antenna with a Si lens placed on top of it at a distance of 3μm. We observe photon noise limited performance both in the phase and amplitude readout simultaneously. Both the optical efficiency and the antenna beam patterns have been measured with excellent agreement with the simulations, and the measured FTS shows a large frequency range (over an octave), only limited by the optical filters placed in the setup.