Al<inline-formula><tex-math>$_{\bf 0.52}$</tex-math></inline-formula>In<inline-formula><tex-math>$_{\bf 0.48}$</tex-math></inline-formula>P SAM-APD as a Blue-Green Detector

  title={Al<inline-formula><tex-math>\$_\{\bf 0.52\}\$</tex-math></inline-formula>In<inline-formula><tex-math>\$_\{\bf 0.48\}\$</tex-math></inline-formula>P SAM-APD as a Blue-Green Detector},
  author={Jeng Shiuh Cheong and J. Siok Lan Ong and Jo Shien Ng and Andrey B. Krysa and John P. R. David},
  journal={IEEE Journal of Selected Topics in Quantum Electronics},
We demonstrate an Al0.52In0.48 P homo-junction Separate Absorption Multiplication Avalanche Photodiode as a detector with narrow spectral response in the blue-green part of the optical spectrum. Due to its wide band-gap, this device has a dark current density of <; 8 nA cm-2 at 99.9% of the breakdown voltage at room temperature. This device has a peak responsivity at 483 nm of 0.15 A/W when punched-through and is capable of an avalanche gain higher than 100. 


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