Testing a 10 micron HgCdTe detector for ground-based exoplanet science

Brittany E. Miles; Philip Hinz; Andrew Skemer; Emily C. Martin; Deno Stelter

doi:10.1117/12.2594915

9 September 2021 Testing a 10 micron HgCdTe detector for ground-based exoplanet science

Brittany E. Miles, Philip Hinz, Andrew Skemer, Emily C. Martin, Deno Stelter

Proceedings Volume 11823, Techniques and Instrumentation for Detection of Exoplanets X; 118230J (2021) https://doi.org/10.1117/12.2594915
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

HgCdTe detectors with longer wavelength cutoffs were created for extending the lifetime of space-based applications because of their higher operating temperatures compared to arsenic doped silicon (Si:As) detectors. In addition to lower dark currents, the HgCdTe detectors also have higher quantum efficiencies compared to Si:As detectors. We are testing a HgCdTe detector with a 12.8 micron cutoff presented in Cabrera et al 2019 using HAWAII electronics in fast read-out mode to understand this array’s viability in instruments behind future ELT s that will directly image Earth-like planets. An f/100 system is required to operate the detector on a thirty meter diameter telescope without saturating, therefore we are the same f# system on the modified cryostat used to test and characterize the detector. We will present initial results on the detector’s quantum efficiency from 2 to 12 microns, read noise, dark current, and ability to tolerate flux levels that would be seen on future ELTs.

Conference Presentation

Citation Download Citation

Brittany E. Miles, Philip Hinz, Andrew Skemer, Emily C. Martin, and Deno Stelter "Testing a 10 micron HgCdTe detector for ground-based exoplanet science", Proc. SPIE 11823, Techniques and Instrumentation for Detection of Exoplanets X, 118230J (9 September 2021); https://doi.org/10.1117/12.2594915

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available