Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Extremely Low Excess Noise in InAs Electron Avalanche Photodiodes
AU - Marshall, Andrew R. J.
AU - Tan, Chee Hing
AU - Steer, Mathew J.
AU - David, John P. R.
PY - 2009/7/1
Y1 - 2009/7/1
N2 - Measurements of the avalanche multiplication noise in InAs p-i-n and n-i-p diodes at room temperature demonstrate unambiguously that the avalanche multiplication process is dominated by impact ionization of electrons. This results in the excess noise factor for electron initiated multiplication asymptotically approaching a maximum value just less than two and becoming virtually gain-independent for higher gains. Measurements for predominantly hole initiated multiplication show corresponding high excess noise factors suggesting the electron to hole ionization coefficient ratios are comparable to those reported for Hg1-xCdxTe electron avalanche photodiodes.
AB - Measurements of the avalanche multiplication noise in InAs p-i-n and n-i-p diodes at room temperature demonstrate unambiguously that the avalanche multiplication process is dominated by impact ionization of electrons. This results in the excess noise factor for electron initiated multiplication asymptotically approaching a maximum value just less than two and becoming virtually gain-independent for higher gains. Measurements for predominantly hole initiated multiplication show corresponding high excess noise factors suggesting the electron to hole ionization coefficient ratios are comparable to those reported for Hg1-xCdxTe electron avalanche photodiodes.
KW - Avalanche photodiodes (APDs)
KW - impact ionization
U2 - 10.1109/LPT.2009.2019625
DO - 10.1109/LPT.2009.2019625
M3 - Journal article
VL - 21
SP - 866
EP - 868
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
SN - 1041-1135
IS - 13
ER -