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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...
In this work we concentrate on the delivery of the Er:YAG (2.94 am wavelength), Tm:YAG (2.01 alpham wavelength), and Tm:YAP (1.98 alpham wavelength) radiations and especially on the characterization of the beam spatial profile during the propagation through the waveguide. The flashlamp pumped Er:YAG, TmYAG, and diode pumped Tm:YAG, and Tm:YAP laser systems generating radiation in a free-running regime...
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.
Coherent THz and millimeter waves continuously tunable in the range of 83.1-1642 /spl mu/m (3.61-0.18 THz) are efficiently generated by using ZnGeP/sub 2/ through collinear phase-matched difference-frequency generation. The maximum peak output power can reach 134 W.
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