Since novel optoelectronic devices based on the peculiar behaviors of the tunneling probability, e.g., resonant tunneling devices (RTD) and band-pass filter, are steadily proposed, the analytic transfer matrix (ATM) m...Since novel optoelectronic devices based on the peculiar behaviors of the tunneling probability, e.g., resonant tunneling devices (RTD) and band-pass filter, are steadily proposed, the analytic transfer matrix (ATM) method is extended to study these devices. For several examples, we explore the effect of the scattered subwaves on tunneling; it is shown that the resonant or band-pass structures in tunneling probability are determined by the phase shift results from the scattered subwaves.展开更多
A special device with photocurrent amplification function is reported. The device with long base region structure consists of dual route photodetectors and their amplifier. Two photodetectors with a space of 50 μm ...A special device with photocurrent amplification function is reported. The device with long base region structure consists of dual route photodetectors and their amplifier. Two photodetectors with a space of 50 μm are precisely located in this device. The device with current sensitivity of S ≥15 A/lm,static state current transmission coefficient of h FE ≥5 000, single route dark current of I D≥1 μA, high frequency current transmission coefficient modulus of | h fe |≥1 at 400 MHz is obtained. At present, the device has been tried out in展开更多
A piezoelectric accelerometer with optical fiber to measure the dynamic parameter of 3 dimensions is presented. The operation equations on X, Y and Z axes are divided, and the test results of 3 dimensional sensitiviti...A piezoelectric accelerometer with optical fiber to measure the dynamic parameter of 3 dimensions is presented. The operation equations on X, Y and Z axes are divided, and the test results of 3 dimensional sensitivities and frequency response, are given as well as experiment results of vibration test with this setup.展开更多
基金supported by the State Key Laboratory of Advanced Optical Communication Systems and Networks (Grant No. 2008SH05)
文摘Since novel optoelectronic devices based on the peculiar behaviors of the tunneling probability, e.g., resonant tunneling devices (RTD) and band-pass filter, are steadily proposed, the analytic transfer matrix (ATM) method is extended to study these devices. For several examples, we explore the effect of the scattered subwaves on tunneling; it is shown that the resonant or band-pass structures in tunneling probability are determined by the phase shift results from the scattered subwaves.
文摘A special device with photocurrent amplification function is reported. The device with long base region structure consists of dual route photodetectors and their amplifier. Two photodetectors with a space of 50 μm are precisely located in this device. The device with current sensitivity of S ≥15 A/lm,static state current transmission coefficient of h FE ≥5 000, single route dark current of I D≥1 μA, high frequency current transmission coefficient modulus of | h fe |≥1 at 400 MHz is obtained. At present, the device has been tried out in
文摘A piezoelectric accelerometer with optical fiber to measure the dynamic parameter of 3 dimensions is presented. The operation equations on X, Y and Z axes are divided, and the test results of 3 dimensional sensitivities and frequency response, are given as well as experiment results of vibration test with this setup.
