US 11,674,850 B1
Continuous full-resolution two-color infrared detector
Michael Goldflam, Albuquerque, NM (US); David W. Peters, Albuquerque, NM (US); Paul Davids, Albuquerque, NM (US); Jin K. Kim, Albuquerque, NM (US); and Evan Michael Anderson, Albuquerque, NM (US)
Assigned to National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US)
Filed by National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US)
Filed on Apr. 14, 2021, as Appl. No. 17/230,159.
Claims priority of provisional application 63/013,868, filed on Apr. 22, 2020.
Int. Cl. G01J 5/24 (2006.01); G01J 5/08 (2022.01); H01L 31/0232 (2014.01); H01L 31/09 (2006.01); H01L 27/146 (2006.01); G01J 5/20 (2006.01)
CPC G01J 5/0837 (2013.01) [G01J 5/24 (2013.01); H01L 27/14652 (2013.01); H01L 31/02327 (2013.01); H01L 31/09 (2013.01); G01J 2005/202 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An apparatus for detecting infrared radiation, comprising:
one or more detector pixels, each having a semiconductor portion;
a first subpattern of one or more nanoantenna elements of a first size disposed on the semiconductor portion of each of the detector pixels;
a second subpattern of one or more nanoantenna elements of a second size unequal to the first size, disposed on the semiconductor portion of each of the detector pixels and interpolated laterally between nanoantenna elements of the first subpattern;
a first collection electrode for collecting photogenerated current from the first subpattern on each of the detector pixels; and
a second collection electrode for collecting photogenerated current from the second subpattern on each of the detector pixels.