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- W2896477654 abstract "We fabricated a novel photodetector by subjecting a Si crystal having a p–n homojunction to phonon-assisted annealing. The photosensitivity of this device for incident light having a wavelength of 1.16 μm or greater was about three-times higher than that of a reference Si-PIN photodiode. The photosensitivity for incident light with a wavelength of around 1.32 μm was increased by applying a forward current. When the forward current density was 10 A/cm2, the device showed photosensitivities of 3.1 A/W at a wavelength of 1.14 μm and 0.10 A/W at 1.32 μm. The photosensitivity at 1.32 μm is at least 4000-times higher than the zero-bias photosensitivity. This remarkable increase was due to the manifestation of optical amplification cause by the forward current injection. For a forward current density of 9 A/cm2, the small-signal gain coefficient of the optical amplification was 2.2 × 10−2, and the saturation power was 7.1 × 102 mW.We fabricated a novel photodetector by subjecting a Si crystal having a p–n homojunction to phonon-assisted annealing. The photosensitivity of this device for incident light having a wavelength of 1.16 μm or greater was about three-times higher than that of a reference Si-PIN photodiode. The photosensitivity for incident light with a wavelength of around 1.32 μm was increased by applying a forward current. When the forward current density was 10 A/cm2, the device showed photosensitivities of 3.1 A/W at a wavelength of 1.14 μm and 0.10 A/W at 1.32 μm. The photosensitivity at 1.32 μm is at least 4000-times higher than the zero-bias photosensitivity. This remarkable increase was due to the manifestation of optical amplification cause by the forward current injection. For a forward current density of 9 A/cm2, the small-signal gain coefficient of the optical amplification was 2.2 × 10−2, and the saturation power was 7.1 × 102 mW." @default.
- W2896477654 created "2018-10-26" @default.
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- W2896477654 date "2012-01-01" @default.
- W2896477654 modified "2023-09-22" @default.
- W2896477654 title "1.3μm-Band Si photodetectors with optical gains fabricated by dressed photon assisted annealing" @default.
- W2896477654 doi "https://doi.org/10.2351/1.5062575" @default.
- W2896477654 hasPublicationYear "2012" @default.
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