Plasmonics: a path towards HOT infrared detectors
Increasing the operating temperature while enhancing the detectivity D<sup>∗</sup> is paramount for the advancement of HgCdTe infrared detectors. We present multiphysics TCAD simulations demonstrating how plasmonic resonances can enable submicron-thick HgCdTe absorbers to operate up to 260 K in the mid-infrared band (MWIR, λ ∈ [3, 5] μm), promising D<sup>∗</sup> more than twofold compared to those provided by conventional 5 μm-thick absorbers, with comparable responsivity. Different nanostructured surfaces are presented as solutions suitable for either covering the entire MWIR, or for narrow-band detectors.
Authors
- D. Eich (ORCID: https://orcid.org/0009-0008-2288-1108)
- Marco Vallone (ORCID: https://orcid.org/0000-0003-3392-1810)
- Francesco Bertazzi (ORCID: https://orcid.org/0000-0002-9409-4807)
- Alberto Tibaldi (ORCID: https://orcid.org/0000-0002-0157-8512)
- Heinrich Figgemeier (ORCID: https://orcid.org/0009-0002-4860-7277)
- Stefan Hanna (ORCID: https://orcid.org/0000-0003-3913-1043)
- Michele Goano (ORCID: https://orcid.org/0000-0003-2870-1549)
Publication Details
- Published
- 2025-03-19
- DOI
- https://doi.org/10.1117/12.3040145
- Citations
- 1
- Primary Topic
- Photonic and Optical Devices
- Type
- article
- Field-Weighted Citation Impact
- 0.73