Two-Photon Absorption based Silicon Photodetector with Topology Optimized cavity

Robin Dahiya*, Ayman N. Kamel, Rasmus E. Christiansen, Andrey Marchevsky, Ole Hansen, Kresten Yvind

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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Abstract

A topologically optimized photonic cavity with an integrated lateral p-i-n structure-based silicon(Si) photodetector has been fabricated. The silicon based cavity allows for the integration of photodetectors (PDs) in CMOS technology, bypassing challenges associated with adding other materials. The goal of the topological optimization is to maximize the rate of two-photon absorption in silicon, while maintaining small dimensions. The fabricated device was characterized, obtaining a resonant wavelength at 1543 nm with a Q-factor of 6315 and a responsivity of 0.21 mA/W while maintaining a low dark current.

Original languageEnglish
Title of host publicationProceedings os SPIE : Nanophotonics X
EditorsDavid L. Andrews, Angus J. Bain, Antonio Ambrosio
Number of pages3
PublisherSPIE - International Society for Optical Engineering
Publication date2024
Article number129911G
ISBN (Electronic)9781510673007
DOIs
Publication statusPublished - 2024
EventSPIE Photonics Europe 2024 - Palais de la Musique et des Congrès, Strasbourg, France
Duration: 7 Apr 202412 Apr 2024

Conference

ConferenceSPIE Photonics Europe 2024
LocationPalais de la Musique et des Congrès
Country/TerritoryFrance
CityStrasbourg
Period07/04/202412/04/2024
SeriesProceedings of SPIE - The International Society for Optical Engineering
Volume12991
ISSN0277-786X

Keywords

  • Cavity
  • Photodetector
  • Silicon
  • Topology
  • Two-Photon

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