ArticleOptics express2021
Avalanche photodetectors with photon trapping structures for biomedical imaging applications.
Article in Optics express, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Initial and Middle Stages of Quantum Dots Growth: From Dynamics of Superstructures to Island-Size Distributions.Nanomaterials (Basel, Switzerland) · 2026Article
- Avalanche Multiplication in Two-Dimensional Layered Materials: Principles and Applications.Nanomaterials (Basel, Switzerland) · 2025Review
- Article
- Sensitivity and Performance of Uncooled Avalanche Photodiode for Thermoluminescent Dosimetry Applications.Sensors (Basel, Switzerland) · 2024Article
- Unique Hyperspectral Response Design Enabled by Periodic Surface Textures in Photodiodes.ACS photonics · 2024Article
- Low-Energy Ion Implantation and Deep-Mesa Si-Avalanche Photodiodes with Improved Fabrication Process.Sensors (Basel, Switzerland) · 2024Article
- Silicon-Based Avalanche Photodiodes: Advancements and Applications in Medical Imaging.Nanomaterials (Basel, Switzerland) · 2023Review
- Advancing Multi-Dimensional Vision: AI-Driven Imaging Using Unique Photodetectors with Integrated Surface Nanostructures.Proceedings of SPIE--the International Society for Optical Engineering · 2023Article
- Unique Hyperspectral Response Design in High-Speed Photodetectors Enabled by Periodic Surface Textures.Research square · 2023Article
- Design and Fabrication of High-Efficiency, Low-Power, and Low-Leakage Si-Avalanche Photodiodes for Low-Light Sensing.ACS photonics · 2023Article
- High Performance 0D ZnO Quantum Dot/2D (PEA)Nanomaterials (Basel, Switzerland) · 2022Article
- Photon-Trapping Microstructure for InGaAs/Si Avalanche Photodiodes Operating at 1.31 μm.Sensors (Basel, Switzerland) · 2022Article
- Engineering the gain and bandwidth in avalanche photodetectors.Optics express · 2022Article
- Near-Infrared Photoresponse in Ge/Si Quantum Dots Enhanced by Photon-Trapping Hole Arrays.Nanomaterials (Basel, Switzerland) · 2021Article
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Authors and funding
11 authors.
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Abstract
Enhancing photon detection efficiency and time resolution in photodetectors in the entire visible range is critical to improve the image quality of time-of-flight (TOF)-based imaging systems and fluorescence lifetime imaging (FLIM). In this work, we evaluate the gain, detection efficiency, and timing performance of avalanche photodiodes (APD) with photon trapping nanostructures for photons with 450 nm and 850 nm wavelengths. At 850 nm wavelength, our photon trapping avalanche photodiodes showed 30 times higher gain, an increase from 16% to >60% enhanced absorption efficiency, and a 50% reduction in the full width at half maximum (FWHM) pulse response time close to the breakdown voltage. At 450 nm wavelength, the external quantum efficiency increased from 54% to 82%, while the gain was enhanced more than 20-fold. Therefore, silicon APDs with photon trapping structures exhibited a dramatic increase in absorption compared to control devices. Results suggest very thin devices with fast timing properties and high absorption between the near-ultraviolet and the near infrared region can be manufactured for high-speed applications in biomedical imaging. This study paves the way towards obtaining single photon detectors with photon trapping structures with gains above 10
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