Physics > Optics
[Submitted on 14 Nov 2024]
Title:Comparative Study of InGaAs and GaAsSb Nanowires for Room Temperature Operation of Avalanche Photodiodes at 1.55 μm
View PDFAbstract:III V semiconductor nanowire based photodetectors have significant potential for remote sensing and LiDAR applications, particularly due to their ability to operate at 1.55 {\mu}m. Achieving room temperature operation and near unity absorption using these nanowires at 1.55 {\mu}m is crucial for single photon detection, which offers a promising solution to the challenges posed by the existing superconducting nanowire single photon detectors. Key materials suited for this wavelength include lattice matched In0.53Ga0.47As and Ga0.5As0.5Sb to InP. This study reports a comparison between InGaAs and GaAsSb nanowires to achieve high absorption efficiency at room temperature. Through optimized nanowire arrangement and geometry, we aim to maximize absorption. Our approach features a comparative analysis of patterned InGaAs and GaAsSb nanowires with absorption characteristics modeled using finite difference time domain simulations to enhance absorption at the target wavelength. We also present the complete workflow for nanowire fabrication, modeling, and simulation, encompassing the production of tapered nanowire structures and measurement of their absorption efficiency. Our experimental results show that tapered InGaAs and GaAsSb nanowires exhibit an absorption efficiency of 93% and 92%, respectively, at room temperature around 1.55 {\mu}m.
Submission history
From: Shrivatch Sanakr [view email][v1] Thu, 14 Nov 2024 20:13:10 UTC (1,425 KB)
Current browse context:
physics.optics
Change to browse by:
References & Citations
Bibliographic and Citation Tools
Bibliographic Explorer (What is the Explorer?)
Connected Papers (What is Connected Papers?)
Litmaps (What is Litmaps?)
scite Smart Citations (What are Smart Citations?)
Code, Data and Media Associated with this Article
alphaXiv (What is alphaXiv?)
CatalyzeX Code Finder for Papers (What is CatalyzeX?)
DagsHub (What is DagsHub?)
Gotit.pub (What is GotitPub?)
Hugging Face (What is Huggingface?)
Papers with Code (What is Papers with Code?)
ScienceCast (What is ScienceCast?)
Demos
Recommenders and Search Tools
Influence Flower (What are Influence Flowers?)
CORE Recommender (What is CORE?)
arXivLabs: experimental projects with community collaborators
arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website.
Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them.
Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs.