Analysis of gate-controlled single photon avalanche diode with high photon-detection-probability
Sign Up to like & getrecommendations! Published in 2021 at "Optics Communications"
DOI: 10.1016/j.optcom.2020.126588
Abstract: Abstract Fluorescent optical fiber temperature sensors require high-performance silicon-based single photon detectors with large-scale on-chip integration capabilities to improve the detection accuracy of the system. Therefore, this paper proposes a gate-controlled single photon avalanche diode(GC-SPAD)… read more here.
Keywords: photon; detection; spad; high photon ... See more keywords
SPAD dynamics in maize crop with precision nitrogen management under rain-fed and irrigated conditions
Sign Up to like & getrecommendations! Published in 2025 at "Scientific Reports"
DOI: 10.1038/s41598-025-05255-y
Abstract: Real-time monitoring of canopy chlorophyll content is crucial for understanding crop growth and guiding precision agricultural management. The SPAD chlorophyll meter is a valuable tool for assessing nitrogen status in maize (Zea mays L.), a… read more here.
Keywords: spad; nitrogen management; precision; crop ... See more keywords
Corn nitrogen management using NDVI and SPAD sensor-based data under conventional vs. reduced tillage systems
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Plant Nutrition"
DOI: 10.1080/01904167.2019.1648686
Abstract: Abstract Present analyses to calculate nitrogen fertilizer recommendations are time consuming and costly. Therefore, a field study determining the efficiency of SPAD and NDVI meters to calculate soil N deficiency and guide fertilizer application timing… read more here.
Keywords: grain yield; spad; corn; tillage ... See more keywords
Optimizing chlorophyll meter (SPAD) reading to allow efficient nitrogen use in rice and wheat under rice-wheat cropping system in eastern India
Sign Up to like & getrecommendations! Published in 2020 at "Plant Production Science"
DOI: 10.1080/1343943x.2020.1717970
Abstract: ABSTRACT Conventional agricultural practices that rely heavily on blanket fertilizer recommendation, eventually leading to deteriorated partial factor productivity and N use efficiency. We investigated the effect of SPAD-based N-management on productivity and N use efficiency… read more here.
Keywords: rice wheat; use; spad; wheat ... See more keywords
Deep Learning Aided Signal Detection for SPAD-Based Underwater Optical Wireless Communications
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.2967461
Abstract: In underwater optical wireless communication (UOWC) systems, using single photon avalanche photondiode (SPAD) as the detector can improve the transmission distance. However, the signal detection for SPAD-based systems is greatly challenged by the complex optical… read more here.
Keywords: signal detection; detection spad; optical wireless; underwater optical ... See more keywords
A Design and Characterization of CMOS SPAD Fabricated in a 0.18-μm Standard Process
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Access"
DOI: 10.1109/access.2025.3635338
Abstract: This article presents the design and characterization of a cost-effective single-photon avalanche diode (SPAD) implemented using a standard 180-nm CMOS process without any process modification. Proposed SPAD employs a p+/n-well junction as the multiplication region… read more here.
Keywords: spad; cmos; process; design characterization ... See more keywords
Energy-Aware Underwater Optical System With Combined Solar Cell and SPAD Receiver
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2021.3127198
Abstract: This letter designs a simultaneous lightwave and power transfer (SLIPT) system in the underwater environment using the power splitting technique. The data is sent by a laser diode and received by a multi-element receiver composed… read more here.
Keywords: system; solar cell; energy; receiver ... See more keywords
A New Verilog-A SPAD Circuit Model Integrating Crosstalk for Large-Scale Array
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems"
DOI: 10.1109/tcad.2025.3572026
Abstract: Single photon avalanche diode (SPAD) is an optoelectronic conversion device with excellent detection sensitivity and extremely high gain. With the increase of SPAD array scale, crosstalk has become an urgent problem to improve the signal-to-noise… read more here.
Keywords: spad; circuit; circuit model; crosstalk ... See more keywords
Error performance optimization utilizing the dynamic detection cycle in a SPAD-based free space optical communication system.
Sign Up to like & getrecommendations! Published in 2021 at "Optics letters"
DOI: 10.1364/ol.438794
Abstract: Afterpulsing is a critical non-ideal factor of the single photon avalanche diode (SPAD) at telecommunication wavelength, which limits the performance of a SPAD-based free space optical communication (FSO) system. Afterpulsing probability (AP) is highly dependent… read more here.
Keywords: system; detection cycle; performance; spad ... See more keywords
Prediction of wheat SPAD using integrated multispectral and support vector machines
Sign Up to like & getrecommendations! Published in 2024 at "Frontiers in Plant Science"
DOI: 10.3389/fpls.2024.1405068
Abstract: Rapidly obtaining the chlorophyll content of crop leaves is of great significance for timely diagnosis of crop health and effective field management. Multispectral imagery obtained from unmanned aerial vehicles (UAV) is being used to remotely… read more here.
Keywords: spad; spad values; support vector; wheat spad ... See more keywords
Estimating Relative Chlorophyll Content in Rice Leaves Using Unmanned Aerial Vehicle Multi-Spectral Images and Spectral–Textural Analysis
Sign Up to like & getrecommendations! Published in 2023 at "Agronomy"
DOI: 10.3390/agronomy13061541
Abstract: Leaf chlorophyll content is crucial for monitoring plant growth and photosynthetic capacity. The Soil and Plant Analysis Development (SPAD) values are widely utilized as a relative chlorophyll content index in ecological agricultural surveys and vegetation… read more here.
Keywords: multi spectral; relative chlorophyll; chlorophyll content; rice ... See more keywords