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Proceedings Paper

Cycling excitation process for light detection and signal amplification in semiconductors
Author(s): Yu-Hsin Liu; Alex Zhang; Mohammad Abu Raihan Miah; David Hall; Ifikhar Ahmad Niaz; Lujiang Yan; Yugang Yu; Mahmut S. Kavrik; Yu-Hwa Lo
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Paper Abstract

An intrinsic signal amplification mechanism, namely cycling excitation process (CEP), has been demonstrated in a heavily doped and heavily compensated silicon p-n junction diode. The physical process amplifies photo-generated signal at low bias (<5V) and produces ultralow excess noise at least partially attributed to an internal stabilization mechanism via electron-phonon interactions. Auger excitation, which can be calculated with Fermi Golden rule and quasi pseudopotential, and localized carrier ionization by phonon absorption are considered two key processes responsible for the unique device characteristics. A partially compensated p-n junction silicon diode based on the proposed CEP principle has shown high gain of ~6000 at -5V and an excess noise factor as low as 3.5 at this gain level, measured at 635nm wavelength and 1KHz for potential imaging applications.

Paper Details

Date Published: 26 September 2016
PDF: 8 pages
Proc. SPIE 9933, Optical Sensing, Imaging, and Photon Counting: Nanostructured Devices and Applications 2016, 99330C (26 September 2016); doi: 10.1117/12.2238585
Show Author Affiliations
Yu-Hsin Liu, Univ. of California, San Diego (United States)
Alex Zhang, Univ. of California, San Diego (United States)
Mohammad Abu Raihan Miah, Univ. of California, San Diego (United States)
David Hall, Univ. of California, San Diego (United States)
Ifikhar Ahmad Niaz, Univ. of California, San Diego (United States)
Lujiang Yan, Univ. of California, San Diego (United States)
Yugang Yu, Univ. of California, San Diego (United States)
Mahmut S. Kavrik, Univ. of California, San Diego (United States)
Yu-Hwa Lo, Univ. of California, San Diego (United States)


Published in SPIE Proceedings Vol. 9933:
Optical Sensing, Imaging, and Photon Counting: Nanostructured Devices and Applications 2016
Manijeh Razeghi; Dorota S. Temple; Gail J. Brown, Editor(s)

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