Performance verification of a double-slot antenna with an elliptical lens for large format KID arrays

Ferrari, Lorenza; Yurduseven, Ozan; Llombat, Nuria Llombart; Yates, S.; Baryshev, Andrey M.; Bueno, Juan; Baselmans, J. J.A.

Performance verification of a double-slot antenna with an elliptical lens for large format KID arrays

Conference paper (2016)

Authors

Lorenza Ferrari SRON–Netherlands Institute for Space Research

Ozan Yurduseven Tera-Hertz Sensing -

Nuria Llombart Llombat Tera-Hertz Sensing -

S. Yates SRON–Netherlands Institute for Space Research

Andrey M. Baryshev SRON–Netherlands Institute for Space Research

Juan Bueno SRON–Netherlands Institute for Space Research

J. J.A. Baselmans SRON–Netherlands Institute for Space Research

Research Group

Tera-Hertz Sensing () (TU Delft)

Optical measurements Antenna-lens system Cryogenic detectors Sub-mm astronomy

To reference this document use:

http://resolver.tudelft.nl/uuid:528e2393-f74f-4623-8cc1-9bc990e7522a

More Info

expand_more

Published Date

26-06-2016

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

Microwave Kinetic Inductance Detectors (MKIDs) are becoming a very promising candidate for next generation imaging instruments for the far infrared. A MKID consists of a superconducting resonator coupled to a feed-line used for the readout. In the devices presented here radiation coupling is achieved by coupling the MKID directly to planar antenna. The antenna is placed in the focus of an elliptical lens to increase the filling factor and to match efficiently to fore-optics. In this paper we present the design and the optical performance of MKIDs optimized for operation at 350 GHz. We have measured a device consisting of 14 pixels, characterized the coupling efficiency, antenna-lens frequency response and beam pattern and compared these to theoretical simulations. The optical efficiency has been measured by means of a black body radiator mounted in an ADR cryostat, through the variation of the black body temperature a variable illumination of each pixel (from 0.1 fW to 2 pW) is achieved. The frequency response and beam pattern have been directly measured in a He3 cryostat directly via the cryostat window and without the use of intermediate optics.