• Tunable THz radiation based on DFG of GaSe and ZnGeP2 crystals

    Tunable THz radiation based on DFG of GaSe and ZnGeP2 crystals

    Terahertz sources have always been one of the most important technologies in the field of THz radition.Lots of ways had been proved functional to achieve THz radition.Typically, telectronics and photonics techologies. In the filed of photonics, nonlinear optical difference-frequency generation ba...

  • CSOE -December 2022

    CSOE -December 2022

    CSOE 2022 The development of science and the achievements of major scientific and technological increasingly depend on the cross and integration of different disciplines. Photonics technology, as the most active research field, has shown the leading trend of in-depth frontier exploration, in...

  • Widely-tunable monochromatic THz sources, based on difference-frequency generation (DFG)  in GaSe, ZnGeP2, and GaP

    Widely-tunable monochromatic THz sources, based on difference-frequency generation (DFG) in GaSe, ZnGeP2, and GaP

    GaSe crystals Using a GaSe crystal the output wavelength was tuned in the range of from 58.2 µm to 3540 µm (from 172 cm-1 to 2.82 cm-1) with the peak power reaching 209 W. Significantly improved was made to the output power of this THz source from 209 W to 389 W. ZnG...

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