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An Acquisition of Spectral System on the Novel Quantum Effect Photodetector

Author: ZhuZuoWei
Tutor: GuoFangMin
School: East China Normal University
Course: Microelectronics and Solid State Electronics
Keywords: Quantum effects Photodetector High sensitivity Photocurrent spectra Spectral acquisition
CLC: TP274.2
Type: Master's thesis
Year: 2011
Downloads: 99
Quote: 0
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Abstract


As aerospace , remote sensing, telemetry , biomedical, airborne detection , tracking, night vision surveillance , early warning, radar tracking and photoelectric light weapons guidance systems and other fields breakthrough in the development of the spectrum , a higher spectral detection resolution, higher sensitivity, and other requirements. Spectra , the detection light is the key component of the light detector , since its structural characteristics of a vital role . Analysis 633nm helium-neon laser radiation, high-sensitivity photodetector quantum effects IV, CV characteristics , real-time transmission spectra based on USB2.0 system to obtain the spectral response of the photodetector element . In the spectra of signal conditioning circuits within the system to select the appropriate amplification parameters measured spectral response characteristics of different devices , select a reasonable range of the amplifier circuit to achieve real-time data transmission are need to focus research sites . High sensitivity of this thesis , a new principle quantum effects photodetector spectral test system. Using semiconductor parameter tester and test software comes with an interactive multi- KITE core, tested three kinds of high-sensitivity photodetector quantum effects photocurrent IV characteristics . Design and sampling bias signal circuits , build new principles applicable to the photodetector spectral test platform for new principles of quantum effects photodetector spectral tests provide accurate lighting conditions , using wavelength tunable light sources for testing. The preliminary determination of the spectral components of each batch , in order to eliminate the influence of its own light source , for the normalization of the power spectrum of the calibration standard tests show that the new principle of quantum effects photodetector spectral response range of 400-1000nm.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system > Data collection and processing systems
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