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The dependence of laser beam induced current (LBIC) on the junction structure of n+-on-p HgCdTe photodiode has been numerically investigated. The simulated LBIC profiles are in good agreement with the experimental data. It is found that the peak LBIC magnitude is close to a linear relationship with both junction depth and length. In addition, the shape between two peaks becomes more flat with the...
By using fast-sweeping fiber distributed Bragg reflector lasers and wideband/high-power photonic transmitter-mixers at W-band, continuously tunable chirped millimeter-wave waveforms generation, wireless transmission, and detection with record-high compression ratio (89−103 GHz/50μ5/7×105) can be achieved.
We demonstrate a novel scheme for photonic generation of chirped millimeter-wave (MMW) pulse with ultrahigh time-bandwidth product (TBP). By using a fast wavelength-sweeping laser with a narrow instantaneous linewidth, wideband/high-power photonic transmitter-mixers, and heterodyne-beating technique, continuously tunable chirped MMW waveforms at the W-band are generated and detected through wireless...
We have demonstrated that two-photon absorption in a 2-cm-thick bulk GaP crystal can be the mechanism for limiting the efficient generation of the ultrafast broadband THz pulses using short infrared laser pulses.
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