论文标题
用有机晶体BNA对Terahertz生成的全面表征
Comprehensive Characterization of Terahertz Generation with the Organic Crystal BNA
论文作者
论文摘要
我们表征了N-苯二唑-2-甲基-4-硝基氨酸（BNA）的Terahertz（THZ），晶体的厚度为123-700μm。我们使用800 nm和1250至1500 nm波长进行比较。只要BNA晶体足够薄，使用800 nm波长和更长的近红外波长泵送BNA会导致广泛的光谱，并使用100-FS泵产生6THz。 〜200μm或较薄的晶体需要用800 nm泵产生宽光谱，而〜300μm厚的晶体对于使用较长的波长来说是最佳的宽带THZ。我们报告了BNA晶体的有利的THZ产生和光学特性，使它们对宽带，高场THZ产生有吸引力，并且我们还发现其他作品中报告的BNA结果有显着差异。
We characterize the terahertz (THz) generation of N-benzyl-2-methyl-4-nitroaniline (BNA), with crystals ranging in thickness from 123-700 μm. We compare excitation using 800-nm and 1250 to 1500-nm wavelengths. Pumping BNA with 800-nm wavelengths and longer near-infrared wavelengths results in a broad spectrum, producing out to 6 THz using a 100-fs pump, provided the BNA crystal is thin enough. ~200 μm or thinner crystals are required to produce a broad spectrum with an 800-nm pump, whereas ~300 μm thick crystals are optimal for broadband THz generation using the longer wavelengths. We report the favorable THz generation and optical characteristics of our BNA crystals that make them attractive for broadband, high-field THz generation, and we also find significant differences to BNA results reported in other works.
