Cherenkov phase-matched monochromatic THzwave generation using difference frequency generation with a lithium niobate crystal.
Cherenkov phase-matched monochromatic THzwave generation using difference frequency generation with a lithium niobate crystal.
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DOI：
10.1364/oe.16.007493
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发表时间：
2008-05
期刊：
影响因子：
3.8
通讯作者：
K. Suizu;T. Shibuya;T. Akiba;Toshihiro Tutui;C. Otani;K. Kawase
中科院分区：
文献类型：
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作者：
K. Suizu;T. Shibuya;T. Akiba;Toshihiro Tutui;C. Otani;K. Kawase
我们展示了一种切伦科夫相位匹配方法，使用铌酸锂晶体的差频生成过程来生成单色太赫兹波，该方法具有高转换效率和宽可调性。我们成功地产生了 0.2-3.0 THz 范围内的单色太赫兹波。我们在0.5 THz以下的低频区域实现了高效的能量转换，并通过在太赫兹波调谐过程中改变泵浦波长实现了平坦的调谐光谱。
We demonstrated a Cherenkov phase-matching method for monochromatic THz-wave generation using the difference frequency generation process with a lithium niobate crystal, which resulted in high conversion efficiency and wide tunability. We successfully generated monochromatic THz waves across the range 0.2-3.0 THz. We obtained efficient energy conversion in the low frequency region below 0.5 THz, and achieved a flat tuning spectrum by varying the pumping wavelength during THz-wave tuning.