Photodetector Focal Plane Arrays Integrated with Silicon Micropyramidal Structures in MWIR

Grant W. Bidney; Joshua M. Duran; Gamini Ariyawansa; Igor Anisimov; Kenneth W. Allen; Vasily N. Astratov

Photodetector Focal Plane Arrays Integrated with Silicon Micropyramidal Structures in MWIR

Optics 2023-09-27 v1 Applied Physics Instrumentation and Detectors

Authors: Grant W. Bidney , Joshua M. Duran , Gamini Ariyawansa , Igor Anisimov , Kenneth W. Allen , Vasily N. Astratov

Abstract

Light-concentrating truncated Si micropyramidal arrays with 54.7 degree sidewall angles were successfully integrated with PtSi Schottky barrier photodetectors. Four different devices consisting of 10 x 10 photodetectors with 60 um pitch combined in parallel were tested, where significant enhancement capability was demonstrated by the Si micropyramids. The device consisting of one hundred 22 um square detectors monolithically integrated with the light-concentrating micropyramidal array displayed signal enhancement of up to 4 times compared to the same size 22 um square photodetector device without the light concentrators.

Keywords

photodetector focal plane arrays silicon micropyramidal structures mwir ptsi schottky barrier light concentration

Cite

@article{arxiv.2309.15077,
  title  = {Photodetector Focal Plane Arrays Integrated with Silicon Micropyramidal Structures in MWIR},
  author = {Grant W. Bidney and Joshua M. Duran and Gamini Ariyawansa and Igor Anisimov and Kenneth W. Allen and Vasily N. Astratov},
  journal= {arXiv preprint arXiv:2309.15077},
  year   = {2023}
}

Comments

4 pages, 2 figures, GOMACTech 2023

Photodetector Focal Plane Arrays Integrated with Silicon Micropyramidal Structures in MWIR

Abstract

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