Powered by OpenAIRE graph

Measuring the atmosphere of Earth-like planets with superconducting, energy resolving detectors

Funder: Netherlands Organisation for Scientific Research (NWO)Project code: 639.041.750
visibility
download
views
OpenAIRE UsageCountsViews provided by UsageCounts
downloads
OpenAIRE UsageCountsDownloads provided by UsageCounts
191
186

Measuring the atmosphere of Earth-like planets with superconducting, energy resolving detectors

Description

The question ‘are we alone?’ is a central question in astronomy. It has become even more relevant due to the recent discovery of planets within the habitable zone of their star. Since life changes the composition of the planet’s atmosphere, its signatures can be measured in the spectrum of that atmosphere. However, an Earth-like planet around a Sun-like star is very faint. The solution is to use a coronagraph, which supresses the starlight, but not the planet. Still, the signal from the planet is less than 1 photon/pixel/second. A crucial technology is therefore a noiseless, photon-counting detector, which ideally resolves the energy of each photon. Established detectors based on photoconductor technology have too high noise, and energy information is lost due to the high bandgap. I propose the next generation camera in which every pixel resolves the energy of each incoming photon, using microwave kinetic inductance detectors (MKIDs). Each pixel is a superconducting resonator, in which a single photon creates thousands of excitations. The resonator response is a direct measure of the photon energy. The theoretical energy resolution of >70 (at 400 nm - 2.5 μm) allows to distinguish the main molecular lines associated with life without additional optics. On top of that these detectors are dark- and read noise free. The main challenge I will face is reaching the energy resolution of >70. Large MKID cameras have been demonstrated, but with an energy resolution <10. I will deepen the understanding of the device physics to increase the detector response, starting from my experience with the most sensitive terahertz MKIDs. As an intermediate step I will acquire practical experience through a 2000 pixel lab demonstrator with an energy resolution ≥20, which can right away function as a wavefront sensor or as a fringe sensor in optical interferometry.

Data Management Plans
  • OpenAIRE UsageCounts
    Usage byUsageCounts
    visibility views 191
    download downloads 186
  • 191
    views
    186
    downloads
    Powered byOpenAIRE UsageCounts
Powered by OpenAIRE graph

Do the share buttons not appear? Please make sure, any blocking addon is disabled, and then reload the page.

All Research products
arrow_drop_down
<script type="text/javascript">
<!--
document.write('<div id="oa_widget"></div>');
document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=nwo_________::d664efb97b31693b3593a20755bea594&type=result"></script>');
-->
</script>
For further information contact us at helpdesk@openaire.eu

No option selected
arrow_drop_down