Terahertz Nonlinear Index Extraction via Full-Phase Analysis

التفاصيل البيبلوغرافية
العنوان: Terahertz Nonlinear Index Extraction via Full-Phase Analysis
المؤلفون: Francis, Kareem J. Garriga, Chong, Mervin Lim Pac, E, Yiwen, Zhang, X. -C.
سنة النشر: 2020
المجموعة: Physics (Other)
مصطلحات موضوعية: Physics - Optics
الوصف: We experimentally show the spectrally averaged nonlinear refractive index and absorption coefficient for liquid water, water vapor, {\alpha}-pinene, and Si using a full-phase analysis in the terahertz regime through a standard time-domain spectrometer. Our results confirm that the nonlinear index of refraction of the liquid samples in this regime exceeds the near-infrared optical nonlinear index by six orders of magnitude. In the case of liquid water and water vapor at atmospheric pressure, we find a nonlinear index of 7.8x10^-10 cm^2/W and 6x10^-11 cm^2/W respectively, which are both much larger than expected.
Comment: 5 pages, 2 figures, 1 table
نوع الوثيقة: Working Paper
DOI: 10.1364/OL.399999
URL الوصول: http://arxiv.org/abs/2006.06484
رقم الأكسشن: edsarx.2006.06484
قاعدة البيانات: arXiv