Highly Efficient Narrowband Terahertz Generation in PPLN Driven by a Two-Line Laser Source
Conference on Lasers and Electro-Optics（2022）
Abstract
We demonstrate record efficiencies of nonlinear optical-to-terahertz conversion near 1% for narrowband terahertz generation. This is achieved by strongly-cascaded difference frequency generation in periodically-poled LiNbO3 crystals using a novel multi-mJ laser source with two narrow spectral lines of tunable separation and pulse duration.
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Key words
record efficiencies,strongly-cascaded difference frequency generation,narrow spectral lines,highly efficient narrowband terahertz generation,two-line laser source,multimJ laser source,nonlinear optical-to-terahertz conversion,periodically-poled LiNbO3 crystals,tunable separation,pulse duration,LiNbO3
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