Lumped-Element Kinetic Inductance Detectors for Cosmic Microwave Background Polarimetry

Metadata Updated: November 12, 2020

NASA's Science Mission Directorate (SMD) calls out understanding how the universe began as a major goal. The Cosmic Microwave Background (CMB) is a nearly isotropic radiation that fills the universe and contains unique cosmological information. The CMB contains polarization anisotropies and a measurement of the primordial B-mode polarization signal from inflationary gravitational waves could uniquely confirm the theory of inflation. In order to make this measurement, thousands of detectors with photon-noise limited sensitivity are needed.

The NESSF fellowship has enabled me to work on the development of Lumped Element Kinetic Inductance Detectors (LEKIDs) for measuring CMB anisotropies. Specifically, I am conducting research for dual-polarization LEKIDs that are sensitive to spectral bands in the millimeter wavelengths where the CMB spectrum peaks. In the first year of the NESSF fellowship, I accomplished all stated goals, most importantly to demonstrate sensitive dual-polarization LEKIDs with low noise. We have been invited to deploy the dual-polarization LEKIDs at the Keck Array, a B-mode polarization experiment, for an on-sky test in the coming year. I will be part of the team to integrate and deploy the detectors and to analyze the experimental data. Additionally, as part of a collaboration, I have begun work towards developing multichroic KIDs, meaning the detectors are simultaneously sensitive to multiple spectral bands, that could be used in future CMB missions. In this progress report, I give a summary of work accomplished and present the research plan for 2016-2017.

This research works to fulfill the NASA objectives of 1. Developing technological advances for future missions and 2. Measuring or a setting an upper limit on the primordial B-mode polarization signal.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Publisher Space Technology Mission Directorate
Unique Identifier Unknown
Identifier TECHPORT_89148
Data First Published 2017-08-01
Data Last Modified 2020-01-29
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Homepage URL
Program Code 026:027
Source Datajson Identifier True
Source Hash 8e59898e45ef7f16bf048a8e3edbcfb6f6830d50
Source Schema Version 1.1

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